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1.
J Adv Vet Anim Res ; 10(3): 449-457, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37969798

RESUMO

Objective: The objective of this study was to associate the 1016G > A variant of the melanocortin-4 receptor gene with lamb's weight, growth, and meat quality in the Colombian hair sheep breed. Materials and Methods: A total of 168 lambs, weights were measured at birth weight (BW), at weaning adjusted weaning weight (AWW), at 6 months [adjusted weight (AW180)], at slaughter adjusted slaughter weight (ASW), daily weight gain preweaning daily gain (preWDG), and postweaning daily gain (postWDG) weaning, and after slaughter, pH, texture, and cook-loss (CL) in the longissimus thoracis et lumborum (LTL) muscle according to the American Meat Science Association methodology. The 1016G > A genotypes were obtained by sequencing. Genotypic and allele frequencies, heterozygosities, and Hardy-Weinberg equilibrium (HWE) were estimated. Using a generalized linear model, the genotype and the allelic substitution effect were associated with the evaluated traits. Results: The heterozygous genotype (0.48) and G allele (0.61) were the most frequent. Heterozygosities were similar (0.47), indicating HWE. The genotype affected the BW (p < 0.05), with a higher value for the GG genotype (2.69 kg). AWW (12.75 kg), AW180 (19.67 kg), and ASW (31.21 kg) weights and daily weight gain (preWDG = 115.41 gm; postWDG = 96.16 gm) were not associated. Average pH, Warner-Bratzler shear force, and CL were 5.75 units, 49.46 N, and 32.02%, with no genotype effect. The G > A substitution only affected BW at -388 gm (p < 0.05). Conclusion: The 1016G > A variant is polymorphic and affects the BW but not other growth traits or the meat quality of the LTL muscle.

2.
Curr Res Food Sci ; 6: 100410, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36545514

RESUMO

Beans reached the research spotlight as a source of bioactive compounds capable of modulating different functions. Recently, we reported antioxidant and oxidonitrergic effect of a low molecular weight peptide fraction (<3 kDa) from hardened bean (Phaseolus vulgaris) in vitro and ex vivo, which necessitate further in vivo assessments. This work aimed to evaluate the hypotensive effect and the involved physiological mechanisms of the hardened common bean peptide (Phaseolus vulgaris) in normotensive (Wistar) and hypertensive (SHR) animals. Bean flour was combined with a solution containing acetonitrile, water and formic acid (25: 24: 1). Protein extract (PV3) was fractioned (3 kDa membrane). We assessed PV3 effects on renal function and hemodynamics of wistar (WT-normotensive) and spontaneously hypertensive rats (SHR) and measured systemic arterial pressure and flow in aortic and renal beds. The potential endothelial and oxidonitrergic involvements were tested in isolated renal artery rings. As results, we found that PV3: I) decreased food consumption in SHR, increased water intake and urinary volume in WT, increased glomerular filtration rate in WT and SHR, caused natriuresis in SHR; II) caused NO- and endothelium-dependent vasorelaxation in renal artery rings; III) reduced arterial pressure and resistance in aortic and renal vascular beds; IV) caused antihypertensive effects in a dose-dependent manner. Current findings support PV3 as a source of bioactive peptides and raise the potential of composing nutraceutical formulations to treat renal and cardiovascular diseases.

3.
Food Chem X ; 13: 100259, 2022 Mar 30.
Artigo em Inglês | MEDLINE | ID: mdl-35498981

RESUMO

Aiming to understand the impact of hardening on the biological potential of bean protein and peptides, we evaluated the antioxidant and vasorelaxant properties of common beans after and before hardening. It was also evaluated the effect of extrusion and autoclaving in the biological potential of hardened beans. In general, hardening caused a reduction from 13.5 to 39.6% on the antioxidant activity of the peptide-rich fractions. On the other hand, hardening did not strongly interfere with the vascular reactivity in thoracic aorta rings, being observed maximal relation varying from 801% to 84.7%. The thermal treatment caused a general increase in the antioxidant and vasorelaxant potential of these fractions, being observed EC50 values ranging from 0.22 mg mL-1 to 0.26 mg mL-1. We can conclude that hardening did not seem to affect definitively the bioactivity of the obtained peptide-rich fractions. Finally, this study allows suggesting practical applications of extrusion as a thermal process in the production of functional food ingredients, and as ready-to-eat products presenting nutraceutical potential. In addition, autoclaving can be used as a pre-treatment of the hardened grains aiming to use them as whole grains with potentialized benefits for human health.

4.
Arch. latinoam. nutr ; Arch. latinoam. nutr;71(3): 208-217, sept. 2021. tab, graf
Artigo em Espanhol | LILACS, LIVECS | ID: biblio-1353230

RESUMO

Las proteínas y polisacáridos con frecuencia son utilizados simultáneamente en la industria de alimentos. Las interacciones entre ambos biopolímeros juegan un papel importante en la estructura y estabilidad de muchos alimentos procesados ya que pueden resultar en un sistema con propiedades bioactivas diferentes como ocurre en el caso de las funcionales. Objetivo. Evaluar los cambios en la capacidad antioxidante de un sistema hidrocoloide mixto formado por un hidrolizado enzimático proteico de frijol endurecido (P. vulgaris) y goma modificada de flamboyán (Delonix regia) (SHM). Materiales y métodos. El estudio se hizo entre febrero-octubre, 2014, en Mérida, México. Se modificó enzimáticamente el concentrado proteico de P. vulgaris con Pepsina-Pancreatina® y la goma extraída del flamboyán mediante carboximetilación, preparando dispersiones al 1% de cada uno de los biopolímeros, determinado la fluorescencia intrínseca de Trp (FIT) como indicador de la interacción entre ambos biopolímeros y la actividad antioxidante y quelante del sistema resultante. Resultados. Se obtuvo un hidrolizado proteico extensivo con 28,8% de grado de hidrólisis y una goma de flamboyán con grado de sustitución de 0,91. La mayor interacción entre ambos biopolímeros, se obtuvo empleando una relación 5:1 del SHM a pH 4 de acuerdo con el valor de FIT. Conclusiones. Los sistemas hidrocoloides mixtos preparados con hidrolizado extensivo de las proteínas Phaseolus vulgaris y goma modificada de flamboyán presentaron un incremento en la actividad antioxidante, respecto del hidrolizado dependiendo del mecanismo de oxidación, así como de las condiciones de pH en que se encuentra el sistema y la interacción entre ambos componentes(AU)


Proteins and polysaccharides are frequently used simultaneously in the food industry. The interactions between both biopolymers play an important role in the structure and stability of many processed foods since they can result in a system with different bioactive properties as in the case of functional ones. Objective. Evaluate the changes in the antioxidant capacity of mixed hydrocolloid system formed by a hard to cook bean (P. vulgaris) protein enzymatic hydrolyzate and modified flamboyant gum (Delonix regia) (SHM). Materials and methods. The study was conducted from February to October 2014 in Merida, Mexico. For this, the protein concentrate of P. vulgaris was treated with Pepsin-Pancreatin® and the gum extracted from the flamboyant were modified enzymatically by carboxymethylation, preparing 1% dispersions of each of the biopolymers, determining the intrinsic Trp fluorescence (FIT) as an indicator of the interaction between both biopolymers and the antioxidant and chelating activity of the resulting system. Results. The main results indicated that an extensive protein hydrolyzate with 28.8% degree of hydrolysis and a flamboyant gum with a substitution degree of 0.91 were obtained. The greatest interaction between both biopolymers was obtained using a 5:1 ratio of SHM to pH 4 according to the FIT value. Conclusions. The mixed hydrocolloid systems prepared with extensive hydrolyzate of the hard to cook P. vulgaris and modified flamboyant gum proteins showed an increase in antioxidant activity, compared to the hydrolyzate depending on the oxidation mechanism, as well as the pH conditions used and interaction between both component(AU)


Assuntos
Polissacarídeos , Estabilidade Proteica , Manipulação de Alimentos , Fabaceae , Antioxidantes , Biopolímeros , Indústria Alimentícia , Coloides
5.
Materials (Basel) ; 13(8)2020 Apr 24.
Artigo em Inglês | MEDLINE | ID: mdl-32344739

RESUMO

Machining of metals is an essential operation in the manufacturing industry. Chip formation in metal cutting is associated with large plastic strains, large deformations, high strain rates and high temperatures, mainly located in the primary and in the secondary shear zones. During the last decades, there has been significant progress in numerical methods and constitutive modeling for machining operations. In this work, the Particle Finite Element Method (PFEM) together with a dislocation density (DD) constitutive model are introduced to simulate the machining of Ti-6Al-4V. The work includes a study of two constitutive models for the titanium material, the physically based plasticity DD model and the phenomenology based Johnson-Cook model. Both constitutive models were implemented into an in-house PFEM software and setup to simulate deformation behaviour of titanium Ti6Al4V during an orthogonal cutting process. Validation show that numerical and experimental results are in agreement for different cutting speeds and feeds. The dislocation density model, although it needs more thorough calibration, shows an excellent match with the results. This paper shows that the combination of PFEM together with a dislocation density constitutive model is an excellent candidate for future numerical simulations of mechanical cutting.

6.
Comun. ciênc. saúde ; 29(supl. 1): 9-13, ago. 2018. tab
Artigo em Português | LILACS | ID: biblio-972700

RESUMO

INTRODUÇÃO: O Diabetes Mellitus é uma doença crônica caracterizada pelo aumento da glicemia. A alimentação saudável, principalmente no que tange à quantidade e ao tipo de carboidrato ingerido, está entre as ações não farmacológicas que auxiliam no controle glicêmico. OBJETIVO: descrever as etapas de elaboração de um livro de receitas regionalizado e adaptado para um grupo de diabéticos acompanhado semanalmente em uma unidade básica de saúde (UBS) do Distrito Federal. MÉTODOS: a intervenção ocorreu entre agosto e novembro de 2017 na UBS do Cruzeiro Novo. A experiência iniciou-se devido à insatisfação dos participantes com a palatabilidade dos alimentos normalmente incluídos em seus planejamentos alimentares alegando serem menos saborosos que aqueles ofertados durante as festividades que participavam. Cada participante trouxe uma receita culinária considerada inadequada para o controle da glicemia. Foi realizada análise nutricional dos ingredientes e propostas substituições que reduzissem a carga glicêmica das receitas originais. Após a degustação, nove delas foram aprovadas e incluídas no livro. RESULTADOS: nas substituições propostas foram excluídas quaisquerfontes de sacarose, o que fez com que as receitas adaptadas apresentassematé 83% menos carboidrato do que as originais, o que deverá impactarpositivamente o controle glicêmico. Os participantes aprovaram asreceitas adaptadas quanto à palatabilidade e informaram ser possívelfazer as substituições sugeridas e incluí-las em suas rotinas alimentares. CONSIDERAÇÕES FINAIS: essa experiência empoderou os pacientesdiabéticos quanto à possibilidade real de se alimentarem adequadamente ede forma prazerosa durante os encontros festivos com amigos e familiaressem, no entanto, impactarem negativamente o controle glicêmico, o que estimulou a inclusão social em seus ambientes de convivência...


Assuntos
Humanos , Diabetes Mellitus , Centros de Saúde , Educação em Saúde , Brasil , Alimentos, Dieta e Nutrição , Livros de Culinária como Assunto
7.
Poult Sci ; 96(12): 4270-4279, 2017 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-29053843

RESUMO

This research aims to evaluate the microclimate of commercial loads of broiler chickens at different distances in the summer (rainy) and winter (dry) seasons and their effects on meat quality. Twelve broiler loads were monitored with a total of 24 crates per load. Data loggers were used to record temperature and relative humidity. The experiment followed a completely randomized design with 48 treatments in a factorial scheme (2 seasons: rainy and dry) x 2 (distances: short and long) x 12 (positions), with 3 replicates per experimental group. In the rainy season, meat quality was influenced by transport distance. For longer distances, it recorded the highest enthalpy comfort index (ECI), suggesting a tendency of dark, firm, and dry meat (DFD-like) and lower cooking losses (CL). The lowest ECI was recorded during the transport in dry season. Broiler chickens transported and slaughtered in the winter presented meat pH and L* (lightness) classified as "normal," but with higher cooking losses. For the shear force (SF), the seasons and distances had no significant influence on tenderness of the meat. Regarding the crate positioning in the load, no effect was observed during transport on this variable, given the meat quality characteristics of pH, L*, CL, and SF. These results suggest that the distance and the seasons present more influence on broiler meat quality than crate position in the truck.


Assuntos
Criação de Animais Domésticos/métodos , Galinhas/fisiologia , Carne/análise , Microclima , Meios de Transporte , Animais , Brasil , Feminino , Masculino , Distribuição Aleatória , Estações do Ano
8.
Int J Epidemiol ; 45(6): 2089-2099, 2016 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-27818376

RESUMO

Background: Diarrhoea and acute lower respiratory infections are leading causes of childhood morbidity and mortality, which can be prevented by simple low-cost interventions. Integrated strategies can provide additional benefits by addressing multiple health burdens simultaneously. Methods: We conducted a community-randomized-controlled trial in 51 rural communities in Peru to evaluate whether an environmental home-based intervention package, consisting of improved solid-fuel stoves, kitchen sinks, solar disinfection of drinking water and hygiene promotion, reduces lower respiratory infections, diarrhoeal disease and improves growth in children younger than 36 months. The attention control group received an early child stimulation programme. Results: We recorded 24 647 child-days of observation from 250 households in the intervention and 253 in the attention control group during 12-month follow-up. Mean diarrhoea incidence was 2.8 episodes per child-year in the intervention compared with 3.1 episodes in the control arm. This corresponds to a relative rate of 0.78 [95% confidence interval (CI): 0.58-1.05] for diarrhoea incidence and an odds ratio of 0.71 (95% CI: 0.47-1.06) for diarrhoea prevalence. No effects on acute lower respiratory infections or children's growth rates were observed. Conclusions: Combined home-based environmental interventions slightly reduced childhood diarrhoea, but the confidence interval included unity. Effects on growth and respiratory outcomes were not observed, despite high user compliance of the interventions. The absent effect on respiratory health might be due to insufficient household air quality improvements of the improved stoves and additional time needed to achieve attitudinal and behaviour change when providing composite interventions.


Assuntos
Diarreia/prevenção & controle , Desinfecção/métodos , Água Potável/normas , Higiene , Infecções Respiratórias/prevenção & controle , Antropometria , Saúde da Criança , Pré-Escolar , Culinária , Diarreia/epidemiologia , Água Potável/microbiologia , Características da Família , Feminino , Humanos , Incidência , Lactente , Masculino , Peru/epidemiologia , Infecções Respiratórias/epidemiologia , População Rural , Purificação da Água/métodos
9.
J Food Sci ; 81(3): C563-8, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26799929

RESUMO

The aim of this study was to explore the use of a new coagulant from Thermomucor indicae-seudaticae N31 for the manufacture of a high-cooked starter-free cheese variety, by evaluating its physicochemical and functional characteristics in comparison to cheeses made with a traditional commercial coagulant. Coalho cheese was successfully produced with the new protease as it exhibited comparable characteristics to the one produced using the commercial enzyme: pH behavior during manufacture; cheese composition; protein and fat recovery; and cheese yield. In addition, during storage, melting was low and not affected by storage time; the increase of TCA 12% soluble nitrogen (% of total nitrogen) was lower than half of that of pH 4.6 soluble nitrogen (% of total nitrogen); concentration of ß-CN significantly decreased, whereas αs1 -CN concentration was not affected by storage time.


Assuntos
Queijo/análise , Endopeptidases/metabolismo , Manipulação de Alimentos/métodos , Mucorales/enzimologia , Coagulantes , Culinária , Humanos , Nitrogênio/análise
11.
Plant Foods Hum Nutr ; 70(4): 463-9, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26249219

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.


Assuntos
Fabaceae , Manipulação de Alimentos/métodos , Sais , Água , Fenômenos Químicos , Dureza , Temperatura Alta , Cloreto de Potássio , Bicarbonato de Sódio , Cloreto de Sódio , Fatores de Tempo
12.
Cad. Ter. Ocup. UFSCar (Impr.) ; 21(1)abr. 2013. ilus
Artigo em Português | Index Psicologia - Periódicos | ID: psi-68604

RESUMO

Neste artigo apresenta-se um estudo, que não é pesquisa e sim relato de experiência de estágio do curso de Terapia Ocupacional na área de Saúde e Trabalho. O objetivo foi analisar as condições de trabalho em uma cozinha industrial de escola de ensino fundamental, da Baixada Santista-SP, e as relações com distúrbios osteomusculares de cozinheiras. Os materiais e métodos utilizados consistiram de elaboração e aplicação de questionário contendo dados demográficos, relacionados ao trabalho, e questões do questionário nórdico de sintomas osteomusculares, também levantamentos de alguns dados antropométricos, de tarefas, e ocorreram observações sistemáticas de algumas atividades de trabalho com base na ergonomia, entre outros. Participaram do estudo cinco trabalhadores do gênero feminino e com idade entre 41 e 53 anos. As regiões acometidas pelos distúrbios osteomusculares foram punhos/mãos, ombros e quadril/coxas, entre outras. Foram encontrados alguns aspectos organizacionais e psicossociais do trabalho que ressaltaram a importância dessas análises. Como experiência, apresentam-se, entre outros, as discussões e contribuições da Terapia Ocupacional junto ao estudo dos distúrbios osteomusculares relacionados ao trabalho (DORT).(AU)


This article presents a study based on an experience report of Occupational Therapy internship in Occupational Health. The objective of this study was to analyze the working conditions in an industrial kitchen of an Elementary School near Santos city, state of Sao Paulo and the appearance of musculoskeletal disorders. The materials and methods consisted in the elaboration and application of a questionnaire with demographic data related to work and the questions of the Nordic musculoskeletal disorder questionnaire. In addition, anthropometric and tasks surveys and systematic observations of some activities based on Ergonomics were performed. Five female workers aged in between 41 and 53 participated in this study. The musculoskeletal regions referred were wrists/hands, shoulders, hips/thighs, among others. Some organizational and psychosocial aspects that highlight the importance of these evaluations were verified. As an experience, it presents discussions and contributions of the Occupational Therapy to work-related musculoskeletal disorders (WMSDs).(AU)


Assuntos
Humanos , Feminino , Adulto , Condições de Trabalho , Transtornos Traumáticos Cumulativos , Terapia Ocupacional
13.
Cad. Ter. Ocup. UFSCar (Impr.) ; 21(1): 155-162, jan.-abr. 2013. ilus
Artigo em Português | LILACS, Index Psicologia - Periódicos | ID: lil-677832

RESUMO

Neste artigo apresenta-se um estudo, que não é pesquisa e sim relato de experiência de estágio do curso de Terapia Ocupacional na área de Saúde e Trabalho. O objetivo foi analisar as condições de trabalho em uma cozinha industrial de escola de ensino fundamental, da Baixada Santista-SP, e as relações com distúrbios osteomusculares de cozinheiras. Os materiais e métodos utilizados consistiram de elaboração e aplicação de questionário contendo dados demográficos, relacionados ao trabalho, e questões do questionário nórdico de sintomas osteomusculares, também levantamentos de alguns dados antropométricos, de tarefas, e ocorreram observações sistemáticas de algumas atividades de trabalho com base na ergonomia, entre outros. Participaram do estudo cinco trabalhadores do gênero feminino e com idade entre 41 e 53 anos. As regiões acometidas pelos distúrbios osteomusculares foram punhos/mãos, ombros e quadril/coxas, entre outras. Foram encontrados alguns aspectos organizacionais e psicossociais do trabalho que ressaltaram a importância dessas análises. Como experiência, apresentam-se, entre outros, as discussões e contribuições da Terapia Ocupacional junto ao estudo dos distúrbios osteomusculares relacionados ao trabalho (DORT).


This article presents a study based on an experience report of Occupational Therapy internship in Occupational Health. The objective of this study was to analyze the working conditions in an industrial kitchen of an Elementary School near Santos city, state of Sao Paulo and the appearance of musculoskeletal disorders. The materials and methods consisted in the elaboration and application of a questionnaire with demographic data related to work and the questions of the Nordic musculoskeletal disorder questionnaire. In addition, anthropometric and tasks surveys and systematic observations of some activities based on Ergonomics were performed. Five female workers aged in between 41 and 53 participated in this study. The musculoskeletal regions referred were wrists/hands, shoulders, hips/thighs, among others. Some organizational and psychosocial aspects that highlight the importance of these evaluations were verified. As an experience, it presents discussions and contributions of the Occupational Therapy to work-related musculoskeletal disorders (WMSDs).


Assuntos
Humanos , Feminino , Adulto , Condições de Trabalho , Transtornos Traumáticos Cumulativos , Terapia Ocupacional
14.
Ci. Rural ; 25(1)1995.
Artigo em Português | VETINDEX | ID: vti-703028

RESUMO

The effect of different concentrations of sodium caseinate in the sensory properties of "cook-in" ham was studied. In each of four replications, twenty ''cook-in" hams were randomly designed to one of five treatment groups in which the curing brine formulation was pumped 20% of their respectivo weights for all treatments. The basic brine composition was 0.5% phosphate; 2.0% salt; 0.4% curing salts; 0.66% ham condiment and 0.25% ascorbate, the processing conditions were the same for all treatments, but there was used different concentrations of sodium caseinate. (0.0%; 0.5%; 1.0% and 1.5%). Samples were removed for pH analysis. Tumbling losses, cooking losses and yield were calculated. Sensory properties of processed "cook-in'' hams were evaluated. The pH haven't a significative effect, because the brine was adjusted to pH 9,0 for all treatments. The hams treated with 1.0% sodium caseinate showed the greatest overall acceptability and the greatest cooking losses too. The hams treated with 0.5% sodim caseinate showed the less cooking losses and reasonable overall acceptability.


Realizou-se o estudo do efeito das diferentes concentrações de caseinato de sódio nos atributos sensoriais do presento "cook-in". Em cada uma das quatro repetições, vinte presuntos foram designados ao acaso num dos cinco tratamentos, nos quais a formulação da salmoura de cura foi injetada a 20% em relação ao peso da carne em todos os tratamentos. A composição básica da salmoura correspondeu a 0,5% fosfato; 2,0% sal; 0,4% sais de cura; 0,66% condimento para presunto e 0,25% ascorbato, as condições de processamento foram as mesmas para todos os tratamentos, mas foram utilizados diferentes concentrações de caseinato de sódio em cada tratamento (0,0%; 0,5%; 1,0% e 1,5%). Foram retiradas amostras para medir o pH. Calculou-se as perdas no tambleamento e no cozimento e o rendimento. As propriedades sensoriais do presunto "cook-in" também foram avaliadas quanto a cor, aroma, coesividade, fatiamento, sabor e textura. O pH não apresentou efeito significativo, devido à salmoura ter sido ajustada para pH 9,0 para todos os tratamentos. Os presuntos com 1,0% caseinato de sódio apresentaram uma ótima aceitabilidade, mas apresentaram também a maior perda no cozimento. Os presuntos com 0,5% de caseinato de sódio apresentaram a menor perda no cozimento e uma razoável aceitabilidade das propriedades sensoriais.

15.
Ciênc. rural ; Ciênc. rural (Online);25(1): 157-162, 1995. ilus, tab
Artigo em Português | LILACS | ID: lil-529777

RESUMO

Realizou-se o estudo do efeito das diferentes concentrações de caseinato de sódio nos atributos sensoriais do presento "cook-in". Em cada uma das quatro repetições, vinte presuntos foram designados ao acaso num dos cinco tratamentos, nos quais a formulação da salmoura de cura foi injetada a 20 por cento em relação ao peso da carne em todos os tratamentos. A composição básica da salmoura correspondeu a 0,5 por cento fosfato; 2,0 por cento sal; 0,4 por cento sais de cura; 0,66 por cento condimento para presunto e 0,25 por cento ascorbato, as condições de processamento foram as mesmas para todos os tratamentos, mas foram utilizados diferentes concentrações de caseinato de sódio em cada tratamento (0,0 por cento; 0,5 por cento; 1,0 por cento e 1,5 por cento). Foram retiradas amostras para medir o pH. Calculou-se as perdas no tambleamento e no cozimento e o rendimento. As propriedades sensoriais do presunto "cook-in" também foram avaliadas quanto a cor, aroma, coesividade, fatiamento, sabor e textura. O pH não apresentou efeito significativo, devido à salmoura ter sido ajustada para pH 9,0 para todos os tratamentos. Os presuntos com 1,0 por cento caseinato de sódio apresentaram uma ótima aceitabilidade, mas apresentaram também a maior perda no cozimento. Os presuntos com 0,5 por cento de caseinato de sódio apresentaram a menor perda no cozimento e uma razoável aceitabilidade das propriedades sensoriais.


The effect of different concentrations of sodium caseinate in the sensory properties of "cook-in" ham was studied. In each of four replications, twenty ''cook-in" hams were randomly designed to one of five treatment groups in which the curing brine formulation was pumped 20 percent of their respectivo weights for all treatments. The basic brine composition was 0.5 percent phosphate; 2.0 percent salt; 0.4 percent curing salts; 0.66 percent ham condiment and 0.25 percent ascorbate, the processing conditions were the same for all treatments, but there was used different concentrations of sodium caseinate. (0.0 percent; 0.5 percent; 1.0 percent and 1.5 percent). Samples were removed for pH analysis. Tumbling losses, cooking losses and yield were calculated. Sensory properties of processed "cook-in'' hams were evaluated. The pH haven't a significative effect, because the brine was adjusted to pH 9,0 for all treatments. The hams treated with 1.0 percent sodium caseinate showed the greatest overall acceptability and the greatest cooking losses too. The hams treated with 0.5 percent sodim caseinate showed the less cooking losses and reasonable overall acceptability.

16.
Artigo em Português | LILACS-Express | VETINDEX | ID: biblio-1474765

RESUMO

The effect of different concentrations of sodium caseinate in the sensory properties of "cook-in" ham was studied. In each of four replications, twenty ''cook-in" hams were randomly designed to one of five treatment groups in which the curing brine formulation was pumped 20% of their respectivo weights for all treatments. The basic brine composition was 0.5% phosphate; 2.0% salt; 0.4% curing salts; 0.66% ham condiment and 0.25% ascorbate, the processing conditions were the same for all treatments, but there was used different concentrations of sodium caseinate. (0.0%; 0.5%; 1.0% and 1.5%). Samples were removed for pH analysis. Tumbling losses, cooking losses and yield were calculated. Sensory properties of processed "cook-in'' hams were evaluated. The pH haven't a significative effect, because the brine was adjusted to pH 9,0 for all treatments. The hams treated with 1.0% sodium caseinate showed the greatest overall acceptability and the greatest cooking losses too. The hams treated with 0.5% sodim caseinate showed the less cooking losses and reasonable overall acceptability.


Realizou-se o estudo do efeito das diferentes concentrações de caseinato de sódio nos atributos sensoriais do presento "cook-in". Em cada uma das quatro repetições, vinte presuntos foram designados ao acaso num dos cinco tratamentos, nos quais a formulação da salmoura de cura foi injetada a 20% em relação ao peso da carne em todos os tratamentos. A composição básica da salmoura correspondeu a 0,5% fosfato; 2,0% sal; 0,4% sais de cura; 0,66% condimento para presunto e 0,25% ascorbato, as condições de processamento foram as mesmas para todos os tratamentos, mas foram utilizados diferentes concentrações de caseinato de sódio em cada tratamento (0,0%; 0,5%; 1,0% e 1,5%). Foram retiradas amostras para medir o pH. Calculou-se as perdas no tambleamento e no cozimento e o rendimento. As propriedades sensoriais do presunto "cook-in" também foram avaliadas quanto a cor, aroma, coesividade, fatiamento, sabor e textura. O pH não apresentou efeito significativo, devido à salmoura ter sido ajustada para pH 9,0 para todos os tratamentos. Os presuntos com 1,0% caseinato de sódio apresentaram uma ótima aceitabilidade, mas apresentaram também a maior perda no cozimento. Os presuntos com 0,5% de caseinato de sódio apresentaram a menor perda no cozimento e uma razoável aceitabilidade das propriedades sensoriais.

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