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Stingless bees have a fundamental important role in the economies and traditions of South America indigenous cultures. Are mainly responsible for the pollination of several plant species. This way, the aim was to identify if Brazilian consumers know stingless bee honey and its sensorial characteristics, what is the consumption of this, as well as to generate information to assist in the development of the productive chain of the specie. A closed structured questionnaire with 20 questions was used and the participants were invited via social media. Data were collected in November 2020. The statistical analyses were performed related to the description, characterization of the participants and frequencies. In addition to these,, multivariate analyzes, for word association and questionnaire responses were performed. It is clear that most participants have some confusion between the sensory and physical characteristics of honey from native stingless bees and Apis mellifera. This lack of knowledge of the product can cause problems both in the handling of honey for sale and for consumption. Another interference would be linked to the taste, when we highlight the acidity and less sweetness of this pot-honey, and the consumer can often deduce that the product is damaged or not from a good origin. There is little consumer awareness of the benefits and qualities of stingless honey. Many consumers are still unaware of the differences between breeding sites and characteristics of native stingless bees. Still, a large part of these associates the quality of this honey with the honey of Apis Mellifera.

RESUMO

Minimally processed strawberries have high acceptability but a short shelf life. The application of edible coatings with essential oils may be an alternative to preserve these fruits. Our objective was to develop, apply and characterize the effect of bioactive edible coatings based on agar or sodium alginate with thyme and/or sweet orange essential oils with antimicrobial properties, mainly against Listeria monocytogenes, for strawberries. The effect of the coatings on the physicochemical, microbiological, and sensory properties that determine the shelf life of strawberries was verified at 1, 8, and 15 days. The effect against Listeria monocytogenes bacteria in strawberries artificially contaminated with this microorganism was also evaluated. Thyme and sweet orange essential oils had thymol and D-limonene, respectively, as main components. Alginate coating with sweet orange and thyme essential oil showed the best results. For Listeria monocytogenes, the coating applied after fruit contamination had an antimicrobial effect.

Las fresas mínimamente procesadas tienen una alta aceptación, pero una vida útil corta. La aplicación de recubrimientos comestibles con aceites esenciales puede ser una alternativa para conservar estos frutos. El objetivo fue desarrollar, aplicar y caracterizar el efecto del uso de recubrimientos comestibles bioactivos, a base de agar agar o alginato de sodio, adicionados con aceites esenciales de tomillo y/o naranja dulce, con propiedades antimicrobianas, principalmente anti-Listeria monocytogenes sobre la fresa. Se verificó el efecto de los recubrimientos sobre las características fisicoquímicas, microbiológicas y sensoriales que determinan la vida útil de las fresas a 1, 8 y 15 días. También se evaluó el efecto contra la bacteria Listeria monocytogenes en fresas contaminadas artificialmente con este microorganismo. Los aceites esenciales de tomillo y naranja dulce presentaron timol y D-limoneno como compuestos mayoritarios, respectivamente. El recubrimiento de alginato con aceite esencial de naranja dulce y tomillo mostró los mejores resultados. Para Listeria monocytogenes, el recubrimiento aplicado después de la contaminación de la fruta tuvo un efecto antimicrobiano.

RESUMO

ABSTRACT This study aimed to evaluate the microbiological, physicochemical and fatty acid profile of the of "Tambica" (Oligosarcus robustus) raw fish meat and develop and characterize a fish burger. The fish burger was subjected to a sensory analysis. The raw fish meat showed a high content of moisture (82.3%) and minerals (3.1%), a low content of fat (1.5%) and a considerable protein content (13.1%). The raw fish showed a high count of positive coagulase Staphylococcus. Tambica lipid fraction was composed of 41.9% unsaturated and 58.2% saturated fatty acids. Palmitic acid and oleic acid were the major fatty acids in the raw meat fish. The fish burger was well accepted by sensory analysis.

RESUMEN Este estudio tuvo como objetivo evaluar el perfil microbiológico, fisicoquímico y de ácidos grasos de la carne de pescado cruda "Tambica" (Oligosarcus robustus); y desarrollar y caracterizar una hamburguesa de pescado. La hamburguesa de pescado fue sometida a análisis sensorial. La carne de pescado cruda mostró un alto contenido de humedad (82,3%) y minerales (3,1%), bajo contenido de grasa (1,5%) y un contenido de proteína considerable (13,1%). El pescado crudo mostró un recuento alto de Staphylococcus coagulasa positivo. La fracción lipídica de Tambica estaba compuesta por un 41,9% de ácidos grasos insaturados y 58,2% de ácidos grasos saturados. El ácido palmítico y el ácido oleico fueron los principales ácidos grasos en el pescado de carne cruda. La hamburguesa de pescado fue bien aceptada por el análisis sensorial.

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Products for consumers with special needs (celiac) and those who prefer a differentiated diet are necessary due to growing demand and a niche market to be exploited. The incorporation of other substances in the formulation of cakes requires a detailed analysis of their characteristics and sensorial attributes. However, the use of these flours may change the sensory characteristics of a product that is normally made from wheat flour. This study aimed to identify the ideal formulation of gluten- and lactose-free brownies made with rice flour and beans/lentils in consumer perception, through the combination of sensory tests. Using these data, the aim was to define recommendations for the reformulation of a product of high consumer acceptance, using easily accessible ingredients. The sensory methods used were descriptive analysis with a group of 20 trained evaluators and a group of 100 consumers evaluated through the check-all-that-apply and just-about-right questionnaire; all groups performed the acceptance test by hedonic scale. Data were analyzed using multivariate techniques and correlation matrices. The results showed that the attributes selected by the trained evaluators and consumers were sufficient to indicate that color and texture were the most striking characteristics that should be improved in brownie formulations without gluten and lactose. PRACTICAL APPLICATION: The study assumes that from the combination of sensory methods it is possible to verify the attributes that are most attractive to consumers in gluten-free and lactose-free cake formulations, using easily accessible ingredients that have technological, nutritional, and sensory quality, such as those formulated with wheat.

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The objective of this work was to identify the perception of consumers regarding the consumption of capybara meat, as well as to generate information that will help in the development of the productive chain of the species. Free word association and application of a questionnaire containing questions were performed. We classified dimensions with categories related to the words of greatest impact mentioned. Through the method of word association, it was noticed that terms related to taste and aroma were the most cited. From the 14 factors explored by the questionnaire, four were identified as responsible for explaining 71% of the total common variance of the variables. The exploratory and confirmatory factorial analysis showed that four factors were sufficient to measure the main characteristics that should be considered in marketing strategies by the industries and breeders who want to increase the consumption of capybara meat. These main factors were animal welfare, price, quality and the dissemination of the benefits of meat.

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ABSTRACT The objective of this study was to evaluate the effect of temperature using different hydration methods on the sensory profile, nutritional value, instrumental color, hardness, and rupture of the tegument, viscosity, and total soluble solids in the broth of common black beans. The black bean, Guapo Brilhante (Phaseolus vulgaris), was analyzed after treatment with different hydration temperatures. The physico-chemical analysis showed that the treatments did not affect the hydration on protein and fiber content. The evaluation of the sensory profile was performed using the Optimized Descriptive Profile test with 16 evaluators. The evaluators recognized differences in the color, rupture, and viscosity attributes; however, a difference was detected in the hardness only in the sample of cooked beans hydrated at 90°C, which was not consistent with instrumental texturometric analysis. When hydration treatments were conducted the soluble solid content of the broth increased and grains were less hard and chewy. In the optimized descriptive profile, the disposal of the water, it was what differentiated sensorial the samples being that the evaluators perceived colors lighter, and with the lower viscosity of the broth. However, the sensory attributes relating to the instruments on the whole, there was a difference between treatments, and correlations for all variables.

RESUMEN El objetivo de la presente investigación fue evaluar el efecto de diferentes temperaturas de hidratación en el perfil sensorial, valor nutricional, color instrumental, dureza, ruptura del tegumento, viscosidad y sólidos solubles totales en el caldo del frijol negro común. La cultivar "Guapo Brillante", del frijol negro (Phaseolus vulgaris) fue analizada después de desarrollar el tratamiento con diferentes temperaturas de hidratación. El análisis físico-químico mostró que los tratamientos de hidratación no afectaron el contenido de proteína y fibra. La evaluación del perfil sensorial se realizó mediante la prueba del perfil descriptivo optimizado con dieciséis evaluadores. Los evaluadores reconocieron las diferencias de los atributos de color, ruptura y viscosidad. Se detectó diferencia para el atributo "dureza" en la muestra de frijol cocido con el agua de hidratación a 90°C, lo cual no concuerda con el análisis texturométricas. Cuando se realizaron tratamientos de hidratación, los contenidos de sólidos solubles del caldo aumentaron, así como los granos se mostraron más indulgentes en relación con la dureza y la masticabilidad. En el perfil descriptivo optimizado, la eliminación del agua fue lo que diferenció sensorialmente a las muestras, ya que los evaluadores percibieron los colores más claros y con la menor viscosidad del caldo. Sin embargo, relacionando los atributos sensoriales con los instrumentales en la totalidad, se verificó una diferenciación entre los tratamientos, y con correlaciones en todas las variables.

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ABSTRACT: Efficient handling programs that provide high quality colostrum in adequate amounts to dairy farm calves are needed to assure their health and survival. Replacers (or milk substitutes) often become necessary when colostrum presents inadequate quality, or in order to break the cycle of infectious disease transmission. In this study we aimed to assess the effect of anaerobic fermentation processing (colostrum silage) on bacterial that represent interest to animal health. Colostrum samples were inoculated with cultures of Brucella abortus , Escherichia coli , Leptospira interrogans serovar Copenhageni , Mycobacterium bovis , Salmonella Enteritidis , Salmonella Typhimurium , Staphylococcus aureus , and Bacillus cereus and then subjected to anaerobic fermentation. On the first day, and every seven days until 30th days after fermentation, the samples were cultured and colony forming units counted. At seven days of fermentation, B. abortus , L. interrogans , and M. bovis were not detected. At 14th days of fermentation, E. coli , S. aureus , S. Enteritidis and S. Typhimurium were no longer detected. However, we were able to detect both lactic acid bacteria and B. cereus until 30th days of fermentation. From this study we suggested that anaerobic fermentation processing can inhibit important bacteria that cause economical losses for the cattle industry. The observations suggested that colostrum silage is a promising form to conserve bovine colostrum.

RESUMO: Eficientes programas de manejo que permitem o fornecimento de colostro de alta qualidade e em quantidades adequadas para bezerros são necessários para garantir a sua saúde e sobrevivência. Substitutos do leite tornam-se frequentemente necessários quando o colostro apresenta qualidade inadequada ou a fim de quebrar o ciclo de transmissão de doenças infecciosas. Este estudo teve como objetivo avaliar o efeito da fermentação anaeróbica do colostro bovino (silagem de colostro) sobre bactérias de interesse para a saúde animal. Alíquotas de colostro foram inoculadas com culturas de Brucella abortus , Escherichia coli , Leptospira interrogans serovar Copenhageni , Mycobacterium bovis , Salmonella Enteritidis , Salmonella Typhimurium , Staphylococcus aureus e Bacillus cereus e submetidas ao processo de fermentação anaeróbia. No primeiro dia e a cada sete dias até o 30o dia de fermentação, as alíquotas foram cultivadas e analisadas pela contagem de unidades formadoras de colônias. Aos sete dias de fermentação, unidades formadoras de colônias de B. abortus, L. interrogans e M. bovis não foram detectadas e unidades formadoras de colônia de E. coli , S. aureus , S. Enteritidis e S. Typhimurium não foram observadas no 14o dia de fermentação. No entanto, B. cereus e bactérias ácido lácticas foram detectadas até o 30o dia de fermentação. Este estudo sugere que o processo de fermentação anaeróbia do colostro bovino proporciona efeitos inibitórios sobre as bactérias avaliadas, constituindo-se num promissor método de conservação do colostro bovino.

RESUMO

Efficient handling programs that provide high quality colostrum in adequate amounts to dairy farm calves are needed to assure their health and survival. Replacers (or milk substitutes) often become necessary when colostrum presents inadequate quality, or in order to break the cycle of infectious disease transmission. In this study we aimed to assess the effect of anaerobic fermentation processing (colostrum silage) on bacterial that represent interest to animal health. Colostrum samples were inoculated with cultures of Brucella abortus , Escherichia coli , Leptospira interrogans serovar Copenhageni , Mycobacterium bovis , Salmonella Enteritidis , Salmonella Typhimurium , Staphylococcus aureus , and Bacillus cereus and then subjected to anaerobic fermentation. On the first day, and every seven days until 30th days after fermentation, the samples were cultured and colony forming units counted. At seven days of fermentation, B. abortus , L. interrogans , and M. bovis were not detected. At 14th days of fermentation, E. coli , S. aureus , S. Enteritidis and S. Typhimurium were no longer detected. However, we were able to detect both lactic acid bacteria and B. cereus until 30th days of fermentation. From this study we suggested that anaerobic fermentation processing can inhibit important bacteria that cause economical losses for the cattle industry. The observations suggested that colostrum silage is a promising form to conserve bovine colostrum.(AU)

Eficientes programas de manejo que permitem o fornecimento de colostro de alta qualidade e em quantidades adequadas para bezerros são necessários para garantir a sua saúde e sobrevivência. Substitutos do leite tornam-se frequentemente necessários quando o colostro apresenta qualidade inadequada ou a fim de quebrar o ciclo de transmissão de doenças infecciosas. Este estudo teve como objetivo avaliar o efeito da fermentação anaeróbica do colostro bovino (silagem de colostro) sobre bactérias de interesse para a saúde animal. Alíquotas de colostro foram inoculadas com culturas de Brucella abortus , Escherichia coli , Leptospira interrogans serovar Copenhageni , Mycobacterium bovis , Salmonella Enteritidis , Salmonella Typhimurium , Staphylococcus aureus e Bacillus cereus e submetidas ao processo de fermentação anaeróbia. No primeiro dia e a cada sete dias até o 30o dia de fermentação, as alíquotas foram cultivadas e analisadas pela contagem de unidades formadoras de colônias. Aos sete dias de fermentação, unidades formadoras de colônias de B. abortus, L. interrogans e M. bovis não foram detectadas e unidades formadoras de colônia de E. coli , S. aureus , S. Enteritidis e S. Typhimurium não foram observadas no 14o dia de fermentação. No entanto, B. cereus e bactérias ácido lácticas foram detectadas até o 30o dia de fermentação. Este estudo sugere que o processo de fermentação anaeróbia do colostro bovino proporciona efeitos inibitórios sobre as bactérias avaliadas, constituindo-se num promissor método de conservação do colostro bovino.(AU)

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RESUMO

The characteristics of modern life has led consumers to seek convenience and speed in food preparation, but storage, which is often prolonged, can result in grain hardening, leading to higher energy consumption during preparation, grain with increased hardness is often discarded. Due to the increasing global demand for grain, the use of alternative techniques aimed at reducing grain waste is necessary. Therefore, we studied a method that meets consumer demand and results in better use of harvested grain. The beans studied were cowpea beans (Vigna unguiculata) of the BRS Guariba cultivar after 1 and 12 months of storage. Sodium chloride (NaCl), potassium chloride (KCl) and sodium bicarbonate (NaHCO3) were added to soaking water at different concentrations as a way to reduce cooking time. These beans were placed in soaking water for 12 h at 3 concentrations (0, 1.0 and 2.5%). The cowpeas soaked in water containing NaHCO3 presented the highest hydration coefficient, which increased with the salt concentration; these beans also had decreased hardness, chewiness and cooking time.

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Colostrum silage is an anaerobic fermentation methodology of excess farm colostrum used to conserve and provide as milk replacement for calves. The present study aimed to evaluate the levels of immunoglobulins present in bovine colostrum silage and its absorption by newborn calves. The concentration of immunoglobulins was determined in fresh colostrum and colostrum silage stored for 12 months. The absorption of immunoglobulins by calves was assessed immediately after birth and 24 h after colostrum silage intake. The immunoglobulin levels were evaluated by ELISA. The results highlighted that colostrum silage kept similar levels of immunoglobulins as the ones in colostrum in natura, and can be transferred to newborn calves with similar amounts to calves fed with colostrum in natura. It is concluded that colostrum silage keeps viable immunoglobulins, and is able to transfer passive immunity to newborn calves.

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RESUMO

Milk or commercial milk replacer blends are the most expensive components in final costs of calves breeding. Colostrum is available and it is the appropriate sources for calves' nutrition, being an excellent option as milk substitute. Besides having both nutritional and immunological characteristics that are superior to milk, colostrum represents no costs to the producer. However, difficulties in preservation of colostrum generate controversy results. The aim of this study was to evaluate the anaerobically fermented colostrum (colostrum silage) as liquid diet for dairy calves. We evaluated the microbiological and physicochemical properties of silage, and performance of 31 animals up to 60 days age. From 21 days until 360 days of fermentation we isolated only bacteria of the genus Lactobacillus spp. The physicochemical evaluation of colostrum silage revealed a tendency to maintain the protein, dry matter and fat values during the evaluation period. The average weight gain of calves fed with milk was 0.6kg day-1 for female and 0.6g day-1 for males while those fed with colostrum silage was significantly higher (P<0.05) with a mean of 0.7kg day-1 for female and 0.7kg day-1 for males. The results of this study demonstrated that colostrum silage keeps the properties necessary for the development of the calves and is a suitable replacement for calves' milk.

O leite ou substitutos comerciais do leite são os componentes mais caros do custo final da criação de bezerras. O colostro é uma fonte adequadada de nutrientes, sendo uma excelente opção como substituto do leite. Além de ter características nutricionais e imunológicas superiores ao leite, o colostro não representa custos para o produtor. No entanto, as dificuldades de preservação do colostro têm gerado resultados controversos. O objetivo deste estudo foi avaliar o colostro fermentado anaerobicamente (silagem de colostro) como dieta líquida para bezerras leiteiras. Foram avaliadas as propriedades microbiológicas e físico-químicas da silagem de colostro e o desempenho de 31 animais até 60 dias de idade. A partir de 21 dias até 360 dias de fermentação, foram isoladas apenas bactérias do género Lactobacillus spp. A avaliação físico-química da silagem de colostro revelou uma tendência para manter os valores de proteína, gordura e matéria seca durante o período de avaliação. O ganho médio de peso dos bezerros alimentados com leite foi de 0,6kg dia-1 para as fêmeas e de 0.6kg dia-1 para os machos, enquanto que o ganho médio de peso para os animais alimentados com silagem colostro foi significativamente maior (P<0,05), com média de 0,7kg dia-1 para as fêmeas e 0,7kg dia-1 para os machos. Os resultados deste estudo mostram que a silagem de colostro mantém as propriedades necessárias para o desenvolvimento dos animais, sendo um substituto adequado para o leite.

RESUMO

Milk or commercial milk replacer blends are the most expensive components in final costs of calves breeding. Colostrum is available and it is the appropriate sources for calves' nutrition, being an excellent option as milk substitute. Besides having both nutritional and immunological characteristics that are superior to milk, colostrum represents no costs to the producer. However, difficulties in preservation of colostrum generate controversy results. The aim of this study was to evaluate the anaerobically fermented colostrum (colostrum silage) as liquid diet for dairy calves. We evaluated the microbiological and physicochemical properties of silage, and performance of 31 animals up to 60 days age. From 21 days until 360 days of fermentation we isolated only bacteria of the genus Lactobacillus spp. The physicochemical evaluation of colostrum silage revealed a tendency to maintain the protein, dry matter and fat values during the evaluation period. The average weight gain of calves fed with milk was 0.6kg day-1 for female and 0.6g day-1 for males while those fed with colostrum silage was significantly higher (P 0.05) with a mean of 0.7kg day-1 for female and 0.7kg day-1 for males. The results of this study demonstrated that colostrum silage keeps the properties necessary for the development of the calves and is a suitable replacement for calves' milk.

O leite ou substitutos comerciais do leite são os componentes mais caros do custo final da criação de bezerras. O colostro é uma fonte adequadada de nutrientes, sendo uma excelente opção como substituto do leite. Além de ter características nutricionais e imunológicas superiores ao leite, o colostro não representa custos para o produtor. No entanto, as dificuldades de preservação do colostro têm gerado resultados controversos. O objetivo deste estudo foi avaliar o colostro fermentado anaerobicamente (silagem de colostro) como dieta líquida para bezerras leiteiras. Foram avaliadas as propriedades microbiológicas e físico-químicas da silagem de colostro e o desempenho de 31 animais até 60 dias de idade. A partir de 21 dias até 360 dias de fermentação, foram isoladas apenas bactérias do género Lactobacillus spp. A avaliação físico-química da silagem de colostro revelou uma tendência para manter os valores de proteína, gordura e matéria seca durante o período de avaliação. O ganho médio de peso dos bezerros alimentados com leite foi de 0,6kg dia-1 para as fêmeas e de 0.6kg dia-1 para os machos, enquanto que o ganho médio de peso para os animais alimentados com silagem colostro foi significativamente maior (P 0,05), com média de 0,7kg dia-1 para as fêmeas e 0,7kg dia-1 para os machos. Os resultados deste estudo mostram que a silagem de colostro mantém as propriedades necessárias para o desenvolvimento dos animais, sendo um substituto adequado para o leite.

RESUMO

Milk or commercial milk replacer blends are the most expensive components in final costs of calves breeding. Colostrum is available and it is the appropriate sources for calves' nutrition, being an excellent option as milk substitute. Besides having both nutritional and immunological characteristics that are superior to milk, colostrum represents no costs to the producer. However, difficulties in preservation of colostrum generate controversy results. The aim of this study was to evaluate the anaerobically fermented colostrum (colostrum silage) as liquid diet for dairy calves. We evaluated the microbiological and physicochemical properties of silage, and performance of 31 animals up to 60 days age. From 21 days until 360 days of fermentation we isolated only bacteria of the genus Lactobacillus spp. The physicochemical evaluation of colostrum silage revealed a tendency to maintain the protein, dry matter and fat values during the evaluation period. The average weight gain of calves fed with milk was 0.6kg day-1 for female and 0.6g day-1 for males while those fed with colostrum silage was significantly higher (P 0.05) with a mean of 0.7kg day-1 for female and 0.7kg day-1 for males. The results of this study demonstrated that colostrum silage keeps the properties necessary for the development of the calves and is a suitable replacement for calves' milk.

O leite ou substitutos comerciais do leite são os componentes mais caros do custo final da criação de bezerras. O colostro é uma fonte adequadada de nutrientes, sendo uma excelente opção como substituto do leite. Além de ter características nutricionais e imunológicas superiores ao leite, o colostro não representa custos para o produtor. No entanto, as dificuldades de preservação do colostro têm gerado resultados controversos. O objetivo deste estudo foi avaliar o colostro fermentado anaerobicamente (silagem de colostro) como dieta líquida para bezerras leiteiras. Foram avaliadas as propriedades microbiológicas e físico-químicas da silagem de colostro e o desempenho de 31 animais até 60 dias de idade. A partir de 21 dias até 360 dias de fermentação, foram isoladas apenas bactérias do género Lactobacillus spp. A avaliação físico-química da silagem de colostro revelou uma tendência para manter os valores de proteína, gordura e matéria seca durante o período de avaliação. O ganho médio de peso dos bezerros alimentados com leite foi de 0,6kg dia-1 para as fêmeas e de 0.6kg dia-1 para os machos, enquanto que o ganho médio de peso para os animais alimentados com silagem colostro foi significativamente maior (P 0,05), com média de 0,7kg dia-1 para as fêmeas e 0,7kg dia-1 para os machos. Os resultados deste estudo mostram que a silagem de colostro mantém as propriedades necessárias para o desenvolvimento dos animais, sendo um substituto adequado para o leite.

RESUMO

Nowadays, there is considerable concern about the consumption of high fat and low fiber foods. The objective was to develop instant noodles (IN) with functional properties by adding 10 percent green banana flour (GBF), and determine the effect of this on the dough rheological properties. Noodles were obtained through sheeting, steaming and frying process. The IN were characterized for their moisture, fat, resistant starch (RS), texture and color. The proximate composition showed that GBF was rich in ash (3.16 percent), fiber (8.88 percent) and RS (45.70 percent), being an attractive raw material for the production of functional IN. When 10 percent GBF was added, rheological properties of dough changed because of dilution of gluten, making it weaker, but with enough extensibility and elasticity for functional IN production. The addition of 10 percent GBF significantly reduced the oil content in all the frying times, when compared to the control noodles, increasing also RS content. Ban10 noodles showed a lower L* value (78.12), indicating a darker color than the control noodles (92.36). In analyzing the firmness of Ban10 noodles, a decrease was observed due to dilution of gluten. However, Ban10 noodles showed a better nutritional profile due to the increase in ash and dietary fiber contents. In conclusion it can be affirmed that Ban10 noodles can be considered as functional IN, due to the presence of fiber (5.79 percent) and RS (3.98 percent) contents in the final product.

Atualmente, existe uma preocupação com relação ao consumo de alimentos com alto teor de gordura e baixo em fibras. Neste trabalho, objetivou-se desenvolver macarrão instantâneo com propriedades funcionais através da adição de 10 por cento de farinha de banana verde (FBV) e determinar os efeitos nas propriedades reológicas da massa. Os macarrões instantâneos foram obtidos por processos de laminação, cozimento a vapor e fritura. Os macarrões foram caracterizados quanto à umidade, gordura, amido resistente, textura e cor. A composição centesimal mostrou que a FBV contém alto teor de cinzas (3,16 por cento), fibras (8,88 por cento) e amido resistente (45,70 por cento), sendo uma matéria-prima interessante na produção de macarrão instantâneo funcional. Quando adicionado 10 por cento de FBV à farinha de trigo as propriedades reológicas da massa foram alteradas, em razão da diluição do glúten, tornando-o mais fraco, mas com extensibilidade e elasticidade suficiente para a produção de macarrão instantâneo funcional. A adição de FBV reduziu significativamente o teor de gordura em todos os tempos de fritura e aumentou o teor de amido resistente, quando comparado ao macarrão instantâneo controle. Os macarrões Ban10 apresentaram um menor valor no parâmetro L* (78,12), indicando uma coloração mais escura do que o controle (92,36). A adição de FBV diminuiu a firmeza dos macarrões, em decorrência da diluição do glúten. No entanto, os macarrões Ban10 apresentaram um melhor perfil nutricional, pelo aumento no teor de cinzas e fibra alimentar total. Em conclusão, pode ser afirmado que os macarrões Ban10 podem ser considerados funcionais, em razão do teor alto de fibra (5,79 por cento) e de amido resistente (3,98 por cento).

RESUMO

O escurecimento enzimático e o amolecimento são as principais alterações que podem afetar pêssegos minimamente processados (MP). Objetivou-se avaliar a aplicação de L-cisteína (Cis), ácido L-ascórbico (AA) e cloreto de cálcio (CC) no controle do escurecimento enzimático e da perda de firmeza de polpa de pêssegos MP, cv. 'Esmeralda'. Os frutos foram processados e, após o fatiamento, imersos nos tratamentos: (I) água (controle); (II) AA+CC; (III) Cis+CC; e, (IV) Cis+AA+CC. Em seguida, as fatias foram acondicionadas em embalagens rígidas envoltas com filme PVC de 30µm de espessura e armazenadas durante seis dias a 4±1°C e 85±3 por cento UR. As amostras foram avaliadas quanto aos aspectos físico-químicos, enzimáticos e sensoriais a cada dois dias. O tratamento Cis+AA+CC resultou em maiores valores de L* e h°, o que indica ter sido o mais eficaz na prevenção do escurecimento. Os tratamentos com L-cisteína resultaram em menor atividade da polifenoloxidase (PPO) e o tratamento Cis+AA+CC foi o mais efetivo na contenção da atividade da peroxidase (POD), indicando que o melhor desempenho desse tratamento está associado à menor atividade de PPO e POD. A avaliação sensorial indicou que o tratamento Cis+AA+CC foi o mais eficiente, proporcionando a manutenção de características sensoriais aceitáveis aos pêssegos MP, cv. 'Esmeralda'.

The enzymatic browning and firmness loss are the major changes that could affect fresh-cut peaches. The objective was to evaluate the application of L-cysteine (Cis), L-ascorbic acid (AA) and calcium chloride (CC) in the control of browning enzymatic and loss of firmness of minimally processed dried peaches, cv. 'Esmeralda'. The fruits were processed industrially and, after slicing, immersed in treatments: (I) water (control); (II) AA+CC; (III) Cis+CC and (IV) Cis+AA+CC. After, the slices were packed in packages sealed with PVC film 30µm thick and stored for six days at 4±1°C and 85±3 percent UR. The samples were evaluated for their physical-chemical, enzymatic and sensory aspects every two days. Treatment Cis+AA+CC resulted in higher values of L* and h°, which indicates that it was the most effective in browning prevention. Treatments with L-cysteine resulted in lower activity of polyphenoloxidase (PPO) and treatment Cis+AA+CC was the most effective in containing peroxidase (POD) activity, indicating that the best performance for such treatment is associated with lower activity of PPO and POD. The sensory evaluation indicated that the treatment Cis+AA+CC was the most efficient, providing the maintenance of the sensory characteristics acceptable for fresh-cut peaches, cv. 'Esmeralda'.

RESUMO

The enzymatic browning and firmness loss are the major changes that could affect fresh-cut peaches. The objective was to evaluate the application of L-cysteine (Cis), L-ascorbic acid (AA) and calcium chloride (CC) in the control of browning enzymatic and loss of firmness of minimally processed dried peaches, cv. 'Esmeralda'. The fruits were processed industrially and, after slicing, immersed in treatments: (I) water (control); (II) AA+CC; (III) Cis+CC and (IV) Cis+AA+CC. After, the slices were packed in packages sealed with PVC film 30µm thick and stored for six days at 4±1°C and 85±3% UR. The samples were evaluated for their physical-chemical, enzymatic and sensory aspects every two days. Treatment Cis+AA+CC resulted in higher values of L* and h°, which indicates that it was the most effective in browning prevention. Treatments with L-cysteine resulted in lower activity of polyphenoloxidase (PPO) and treatment Cis+AA+CC was the most effective in containing peroxidase (POD) activity, indicating that the best performance for such treatment is associated with lower activity of PPO and POD. The sensory evaluation indicated that the treatment Cis+AA+CC was the most efficient, providing the maintenance of the sensory characteristics acceptable for fresh-cut peaches, cv. 'Esmeralda'.

O escurecimento enzimático e o amolecimento são as principais alterações que podem afetar pêssegos minimamente processados (MP). Objetivou-se avaliar a aplicação de L-cisteína (Cis), ácido L-ascórbico (AA) e cloreto de cálcio (CC) no controle do escurecimento enzimático e da perda de firmeza de polpa de pêssegos MP, cv. 'Esmeralda'. Os frutos foram processados e, após o fatiamento, imersos nos tratamentos: (I) água (controle); (II) AA+CC; (III) Cis+CC; e, (IV) Cis+AA+CC. Em seguida, as fatias foram acondicionadas em embalagens rígidas envoltas com filme PVC de 30µm de espessura e armazenadas durante seis dias a 4±1°C e 85±3% UR. As amostras foram avaliadas quanto aos aspectos físico-químicos, enzimáticos e sensoriais a cada dois dias. O tratamento Cis+AA+CC resultou em maiores valores de L* e h°, o que indica ter sido o mais eficaz na prevenção do escurecimento. Os tratamentos com L-cisteína resultaram em menor atividade da polifenoloxidase (PPO) e o tratamento Cis+AA+CC foi o mais efetivo na contenção da atividade da peroxidase (POD), indicando que o melhor desempenho desse tratamento está associado à menor atividade de PPO e POD. A avaliação sensorial indicou que o tratamento Cis+AA+CC foi o mais eficiente, proporcionando a manutenção de características sensoriais aceitáveis aos pêssegos MP, cv. 'Esmeralda'.

RESUMO

The enzymatic browning and firmness loss are the major changes that could affect fresh-cut peaches. The objective was to evaluate the application of L-cysteine (Cis), L-ascorbic acid (AA) and calcium chloride (CC) in the control of browning enzymatic and loss of firmness of minimally processed dried peaches, cv. 'Esmeralda'. The fruits were processed industrially and, after slicing, immersed in treatments: (I) water (control); (II) AA+CC; (III) Cis+CC and (IV) Cis+AA+CC. After, the slices were packed in packages sealed with PVC film 30µm thick and stored for six days at 4±1°C and 85±3% UR. The samples were evaluated for their physical-chemical, enzymatic and sensory aspects every two days. Treatment Cis+AA+CC resulted in higher values of L* and h°, which indicates that it was the most effective in browning prevention. Treatments with L-cysteine resulted in lower activity of polyphenoloxidase (PPO) and treatment Cis+AA+CC was the most effective in containing peroxidase (POD) activity, indicating that the best performance for such treatment is associated with lower activity of PPO and POD. The sensory evaluation indicated that the treatment Cis+AA+CC was the most efficient, providing the maintenance of the sensory characteristics acceptable for fresh-cut peaches, cv. 'Esmeralda'.

O escurecimento enzimático e o amolecimento são as principais alterações que podem afetar pêssegos minimamente processados (MP). Objetivou-se avaliar a aplicação de L-cisteína (Cis), ácido L-ascórbico (AA) e cloreto de cálcio (CC) no controle do escurecimento enzimático e da perda de firmeza de polpa de pêssegos MP, cv. 'Esmeralda'. Os frutos foram processados e, após o fatiamento, imersos nos tratamentos: (I) água (controle); (II) AA+CC; (III) Cis+CC; e, (IV) Cis+AA+CC. Em seguida, as fatias foram acondicionadas em embalagens rígidas envoltas com filme PVC de 30µm de espessura e armazenadas durante seis dias a 4±1°C e 85±3% UR. As amostras foram avaliadas quanto aos aspectos físico-químicos, enzimáticos e sensoriais a cada dois dias. O tratamento Cis+AA+CC resultou em maiores valores de L* e h°, o que indica ter sido o mais eficaz na prevenção do escurecimento. Os tratamentos com L-cisteína resultaram em menor atividade da polifenoloxidase (PPO) e o tratamento Cis+AA+CC foi o mais efetivo na contenção da atividade da peroxidase (POD), indicando que o melhor desempenho desse tratamento está associado à menor atividade de PPO e POD. A avaliação sensorial indicou que o tratamento Cis+AA+CC foi o mais eficiente, proporcionando a manutenção de características sensoriais aceitáveis aos pêssegos MP, cv. 'Esmeralda'.

RESUMO

The enzymatic browning and firmness loss are the major changes that could affect fresh-cut peaches. The objective was to evaluate the application of L-cysteine (Cis), L-ascorbic acid (AA) and calcium chloride (CC) in the control of browning enzymatic and loss of firmness of minimally processed dried peaches, cv. 'Esmeralda'. The fruits were processed industrially and, after slicing, immersed in treatments: (I) water (control); (II) AA+CC; (III) Cis+CC and (IV) Cis+AA+CC. After, the slices were packed in packages sealed with PVC film 30µm thick and stored for six days at 4±1°C and 85±3% UR. The samples were evaluated for their physical-chemical, enzymatic and sensory aspects every two days. Treatment Cis+AA+CC resulted in higher values of L* and h°, which indicates that it was the most effective in browning prevention. Treatments with L-cysteine resulted in lower activity of polyphenoloxidase (PPO) and treatment Cis+AA+CC was the most effective in containing peroxidase (POD) activity, indicating that the best performance for such treatment is associated with lower activity of PPO and POD. The sensory evaluation indicated that the treatment Cis+AA+CC was the most efficient, providing the maintenance of the sensory characteristics acceptable for fresh-cut peaches, cv. 'Esmeralda'.

O escurecimento enzimático e o amolecimento são as principais alterações que podem afetar pêssegos minimamente processados (MP). Objetivou-se avaliar a aplicação de L-cisteína (Cis), ácido L-ascórbico (AA) e cloreto de cálcio (CC) no controle do escurecimento enzimático e da perda de firmeza de polpa de pêssegos MP, cv. 'Esmeralda'. Os frutos foram processados e, após o fatiamento, imersos nos tratamentos: (I) água (controle); (II) AA+CC; (III) Cis+CC; e, (IV) Cis+AA+CC. Em seguida, as fatias foram acondicionadas em embalagens rígidas envoltas com filme PVC de 30µm de espessura e armazenadas durante seis dias a 4±1°C e 85±3% UR. As amostras foram avaliadas quanto aos aspectos físico-químicos, enzimáticos e sensoriais a cada dois dias. O tratamento Cis+AA+CC resultou em maiores valores de L* e h°, o que indica ter sido o mais eficaz na prevenção do escurecimento. Os tratamentos com L-cisteína resultaram em menor atividade da polifenoloxidase (PPO) e o tratamento Cis+AA+CC foi o mais efetivo na contenção da atividade da peroxidase (POD), indicando que o melhor desempenho desse tratamento está associado à menor atividade de PPO e POD. A avaliação sensorial indicou que o tratamento Cis+AA+CC foi o mais eficiente, proporcionando a manutenção de características sensoriais aceitáveis aos pêssegos MP, cv. 'Esmeralda'.

RESUMO

The meat tenderness is the most important atribute to the consumer. Several factors have influence in this aspect, for exemple: genotype, age, sex and others. The objective of this work was to study the influence of age and sex on Longissimus dorsi muscle tenderness of Corriedale lineage lamb, through sensory and instrumental methods. After slaughter Longissimus dorsi, texture was evaluated by granites surface method. The samples were frozen for five months. After thawing and cooking, meat tenderness was evaluated by Warner-Bratzler shear and sensory evaluation by a group of trained judges. The results indicated that female and younger animals produced more tender meat.

A maciez da carne geralmente é o atributo mais importante para o consumidor. Vários são os fatores que influem sobre esSe aspecto no animal, como por exemplo: genótipo, idade, sexo, entre outros. Neste estudo, verificou-se a influência da idade e do sexo na maciez do músculo Longissimus dorsi de ovinos da raça Corriedale, através de métodos sensoriais e instrumentais. Após o abate, realizou-se a avaliação visual da textura do músculo pela granulação da superfície do mesmo. As amostras foram congeladas por 5 meses. Após a cocção, foi analisada a maciez da carne pelo equipamento Warner-Bratzler shear medindo a força de cisalhamento, e por avaliação sensorial realizada por uma equipe treinada de julgadores. Resultados obtidos pela avaliação sensorial e instrumental indicaram que o músculo Longissimus dorsi de fêmeas e de animais de menor idade foram mais macios.

RESUMO

The meat tenderness is the most important atribute to the consumer. Several factors have influence in this aspect, for exemple: genotype, age, sex and others. The objective of this work was to study the influence of age and sex on Longissimus dorsi muscle tenderness of Corriedale lineage lamb, through sensory and instrumental methods. After slaughter Longissimus dorsi, texture was evaluated by granite’s surface method. The samples were frozen for five months. After thawing and cooking, meat tenderness was evaluated by Warner-Bratzler shear and sensory evaluation by a group of trained judges. The results indicated that female and younger animals produced more tender meat.

A maciez da carne geralmente é o atributo mais importante para o consumidor. Vários são os fatores que influem sobre esSe aspecto no animal, como por exemplo: genótipo, idade, sexo, entre outros. Neste estudo, verificou-se a influência da idade e do sexo na maciez do músculo Longissimus dorsi de ovinos da raça Corriedale, através de métodos sensoriais e instrumentais. Após o abate, realizou-se a avaliação visual da textura do músculo pela granulação da superfície do mesmo. As amostras foram congeladas por 5 meses. Após a cocção, foi analisada a maciez da carne pelo equipamento Warner-Bratzler shear medindo a força de cisalhamento, e por avaliação sensorial realizada por uma equipe treinada de julgadores. Resultados obtidos pela avaliação sensorial e instrumental indicaram que o músculo Longissimus dorsi de fêmeas e de animais de menor idade foram mais macios.