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1.
Food Chem ; 462: 140994, 2025 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-39208729

RESUMEN

The quality of meat in prepared dishes deteriorates due to excessive protein denaturation resulting from precooking, freezing, and recooking. This study aimed to link the precooked state with chicken breast's recooked quality. Cooked Value (CV), based on protein denaturation kinetics, was established to indicate the doneness of meat during pre-heating. The effects of CVs after pre-heating on recooked qualities were investigated compared to fully pre-heated samples (control). Mild pre-heating reduced water migration and loss. While full pre-heating inhibited protein oxidation during freezing, intense oxidation during pre-heating led to higher oxidation levels. Surface hydrophobicity analysis revealed that mild pre-heating suppressed aggregation during recooking. These factors contributed to a better texture and microstructure of prepared meat with mild pre-heating. Finally, a potential mechanism of how pre-heating affects final qualities was depicted. This study underlines the need for finely controlling the industrial precooking process to regulate the quality of prepared meat.


Asunto(s)
Pollos , Culinaria , Calor , Carne , Oxidación-Reducción , Desnaturalización Proteica , Agua , Animales , Cinética , Carne/análisis , Agua/química , Interacciones Hidrofóbicas e Hidrofílicas
2.
Food Chem ; 462: 141028, 2025 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-39217743

RESUMEN

High-moisture extrusion technique with the advantage of high efficiency and low energy consumption is a promising strategy for processing Antarctic krill meat. Consequently, this study aimed to prepare high-moisture textured Antarctic krill meat (HMTAKM) with a rich fiber structure at different water contents (53 %, 57 %, and 61 %) and to reveal the binding and distribution regularity of water molecules, which is closely related to the fiber structure of HMTAKM and has been less studied. The hydrogen-bond network results indicated the presence of at least two or more types of water molecules with different hydrogen bonds. Increasing the water content of HMTAKM promoted the formation of hydrogen bonds between the water molecules and protein molecules, leading to the transition of the ß-sheet to the α-helix. These findings offer a novel viable processing technique for Antarctic krill and a new understanding of the fiber formation of high-moisture textured proteins.


Asunto(s)
Euphausiacea , Enlace de Hidrógeno , Agua , Euphausiacea/química , Animales , Agua/química , Agua/metabolismo , Regiones Antárticas , Carne/análisis , Manipulación de Alimentos
3.
Food Chem ; 462: 141043, 2025 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-39226646

RESUMEN

Electrospun zein-based eugenol nanofibers (ZEnF) with diameters (148.19-631.52 nm) were fabricated. Thermal degradation was found as <15 % until 300 °C while the nanofiber diffraction pattern presented three main peaks among the 5o and 45o positions. ZEnF was not only evaluated as non-toxic to cells but also possessed anticancer characteristics revealing with the MCF-7 cell line at 800 µg/mL (reduction: 18.08 %) and 1600 µg/mL (reduction: 41.64 %). Allium tests revealed that ZEnF did not have any adverse impact on the health status (chromosomes-DNA) of exposed organisms. Following the nanofiber coating for chicken meat parts (thigh and breast), it was observed up to 1.25 log CFU/g limitation in total viable bacteria counts (p < 0.05). The sensory score (difference: 3.64 in 10 points scoring on the 6th day of the cold storage) and odor score of chicken meat samples were found to be as higher than control samples (p < 0.05).


Asunto(s)
Pollos , Eugenol , Carne , Nanofibras , Zeína , Animales , Zeína/química , Nanofibras/química , Carne/análisis , Humanos , Eugenol/química , Eugenol/farmacología , Células MCF-7 , Allium/química , Conservación de Alimentos
4.
Food Chem ; 462: 140936, 2025 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-39232273

RESUMEN

Aromatic amino acid oxidation products (AAAOPs) are newly discovered risk substances of thermal processes. Due to its significant polarity and trace level in food matrices, there are no efficient pre-treatment methods available to enrich AAAOPs. Herein, we proposed a magnetic cationic covalent organic framework (Fe3O4@EB-iCOF) as an adsorbent for dispersive magnetic solid-phase extraction (DMSPE). Benefiting from the unique charged characteristics of Fe3O4@EB-iCOF, AAAOPs can be enriched through electrostatic interaction and π-π interactions. Under the optimal DMSPE conditions, the combined HPLC-MS/MS method demonstrated good linearity (R2 ≥ 0.990) and a low detection limit (0.11-7.5 µg·kg-1) for AAAOPs. In addition, the method was applied to real sample and obtained satisfactory recoveries (86.8 % âˆ¼ 109.9 %). Especially, we applied this method to the detection of AAAOPs in meat samples and conducted a preliminarily study on its formation rules, which provides a reliable basis for assessing potential dietary risks.


Asunto(s)
Aminoácidos Aromáticos , Oxidación-Reducción , Extracción en Fase Sólida , Extracción en Fase Sólida/métodos , Aminoácidos Aromáticos/química , Aminoácidos Aromáticos/análisis , Aminoácidos Aromáticos/aislamiento & purificación , Espectrometría de Masas en Tándem , Estructuras Metalorgánicas/química , Calor , Contaminación de Alimentos/análisis , Cromatografía Líquida de Alta Presión , Animales , Adsorción , Carne/análisis , Alimentos Procesados
5.
Vet Med Sci ; 10(5): e70031, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-39285748

RESUMEN

BACKGROUND: With the ban on the use of antibiotics in poultry nutrition, the opinion of nutritionists turned to their alternatives. Garlic and mushroom are the two important phytobiotic compounds in poultry nutrition. OBJECTIVES: This experiment was done to investigate the effect of garlic powder (GP) and mushroom powder (MP) on the growth performance, meat quality, serum lipid profile, and intestinal morphology of broilers. METHODS: Five hundred and seventy-six one-day-old male Ross 308 broiler chicks were assigned to eight treatments with six replications based on a completely randomized design in a factorial arrangement of 4*2 with four levels of GP (0.00, 0.50, 1.00, 1.50%) and two levels of MP (0.00, 1.00%). RESULTS: No significant effects of GP and MP on the performance were observed. With increasing levels of GP in the diets, the lightness and redness of breast meat decreased and increased, respectively (p < 0.05). The effect of increasing the amount of GP on the reduction of total cholesterol level was similar in the absence or presence of MP. With increasing levels of GP in the diets, the villus height (VH) and VH to crypt depth ratio (VH: CD) increased. The use of MP in the diets significantly increased VH and VH: CD (p < 0.05). CONCLUSION: The addition of GP and MP to the broilers' diets did not have any negative effect on the performance. These pharmaceutic herbs improved intestinal morphology. In addition, increasing the level of GP amended the meat color and reduced the level of serum cholesterol.


Asunto(s)
Agaricus , Alimentación Animal , Pollos , Dieta , Ajo , Intestinos , Carne , Animales , Pollos/sangre , Pollos/fisiología , Pollos/crecimiento & desarrollo , Pollos/anatomía & histología , Agaricus/química , Ajo/química , Masculino , Alimentación Animal/análisis , Dieta/veterinaria , Carne/análisis , Intestinos/efectos de los fármacos , Intestinos/anatomía & histología , Lípidos/sangre , Distribución Aleatoria , Polvos , Fenómenos Fisiológicos Nutricionales de los Animales/efectos de los fármacos , Suplementos Dietéticos/análisis , Relación Dosis-Respuesta a Droga
6.
PLoS One ; 19(9): e0310336, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-39250496

RESUMEN

The role of CYP2E1 in oxidation is essential for its effects on meat quality. This study used 200 Indonesian sheep (Ovis aries) to determine the SNP g allele frequencies. g. 50658168 T>C of CYP2E1 gene located in 3´-UTR region and their genetic association with lamb quality traits, including carcass characteristics, retail cut carcass, physicochemical lamb, fatty acid, cholesterol, flavor and odor, and mineral content. Further, the level of CYP2E1 mRNA and CYP2E1 protein expression in muscle were determined and correlated with lamb quality traits. CYP2E1 gene polymorphisms were identified using Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) analysis. The CYP2E1 mRNA expression levels in phenotypically divergent sheep populations were analyzed using Quantitative Real Time-PCR (qRT-PCR). Immunohistochemistry (IHC) and hematoxylin-eosin (HE) staining analysis used three samples each in the high and low lamb quality groups based on pH value and tenderness. An association study of CYP2E1 gene polymorphisms was performed using General Linear Model (GLM) analysis. The genetic association between the CC, CT, and TT genotypes at the SNP g. 50658168 T>C CYP2E1 gene and lamb quality traits were significant (P<0.05), including carcass characteristics, retail cut carcass, fatty acid, cholesterol, flavor, and odor. Lambs with the CT genotype had a higher mRNA and protein expression in high lamb quality traits. The highest CYP2E1 protein expression was localized in the longissimus dorsi. The group sample with high lamb quality had a higher area and perimeter of muscle cells. CYP2E1 can be used as a genetic marker for selecting sheep with high meat quality.


Asunto(s)
Citocromo P-450 CYP2E1 , Polimorfismo de Nucleótido Simple , Animales , Citocromo P-450 CYP2E1/genética , Citocromo P-450 CYP2E1/metabolismo , Ovinos/genética , Ovinos/metabolismo , Carne/análisis , Indonesia , Carne Roja/análisis , Frecuencia de los Genes , Genotipo , Cruzamiento , Oveja Doméstica/genética , Oveja Doméstica/metabolismo
7.
BMC Vet Res ; 20(1): 391, 2024 Sep 04.
Artículo en Inglés | MEDLINE | ID: mdl-39232745

RESUMEN

BACKGROUND: Plasma-activated water (PAW) is an innovative promising technology which could be applied to improve poultry health. The current study investigated the effects of drinking water supply with PAW on quail behaviour, performance, biochemical parameters, carcass quality, intestinal microbial populations, and internal organs histopathology. A total of 54 twenty-one-day-old Japanese quail chicks were randomly allotted to three treatments provided with PAW at doses 0, 1 ml (PAW-1), and 2 ml (PAW-2) per one litter drinking water. Each treatment contained 6 replicates (3 birds/ cage; one male and two females). RESULTS: The results clarified that there were no significant (P > 0.05) changes in behaviour, and performance. For the biochemical indicators, the PAW-1 group showed significantly higher serum H2O2, total protein and globulin levels compared with the other groups (P = 0.015, < 0.001, and 0.019; respectively). PAW groups had significantly lower serum creatinine and urea levels than the control (P = 0.003). For the carcass quality, the internal organs relative weight between different treatments was not changed. In contrast, there was a significant increase in the meat colour, taste, and overall acceptance scores in PAW groups compared with the control one (P = 0.013, 0.001, and < 0.001; respectively). For the intestinal microbial population, lactobacilli count was significantly higher in PAW-2 compared with the control group (P = 0.014), while there were no changes in the total bacterial count between different treatment groups. Moreover, mild histological changes were recorded in the intestine, liver, and spleen of PAW groups especially PAW-2 compared with the control one. CONCLUSIONS: PAW offered benefits, such as reducing creatine and urea levels, improving meat characteristics, and increasing lactobacilli count, all of which are crucial for sustainable quail farming. Therefore, further research is needed.


Asunto(s)
Coturnix , Animales , Masculino , Femenino , Conducta Animal , Carne/análisis , Carne/normas , Agua Potable/microbiología , Agua Potable/química , Microbioma Gastrointestinal
8.
Int J Biol Macromol ; 277(Pt 3): 134377, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39094870

RESUMEN

Polysaccharides are widely used to improve the quality of plant-based meat analogue (PMA). In this study, four kinds of konjac glucomannan (KG) with different deacetylation degrees (DD) were prepared, namely KG1 (native KG, DD = 0.00 %), KG2 (DD = 41.40 %), KG3 (DD = 80.01 %) and KG4 (DD = 89.07 %), and their effects on the quality of PMA were studied. Results manifested that KG3 improved the hardness (from 3017.16 g to 3307.16 g) and protein digestibility (from 49.65 % to 53.01 %) of PMA without reducing the P21, KG2 and KG4 were less effective than KG3, while KG1 led to a significant decline in the hardness and protein digestibility of PMA. The rheological properties and intermolecular force analysis showed that the partially deacetylated KG was more conducive to improving the G' of the protein system during heating and the proportion of covalent bonds in PMA. These findings suggested that partially deacetylated KG was more promising than native or highly deacetylated KG in PMA. Furthermore, scanning electron microscopy revealed that the morphology of KG gradually changed from fine filaments, to coarse filaments, short filaments and granules as DD increased. This study provides a theoretical basis for the application of partially deacetylated KG in PMA.


Asunto(s)
Mananos , Mananos/química , Acetilación , Geles/química , Carne/análisis , Reología , Dureza , Sustitutos de la Carne
9.
Nutrients ; 16(16)2024 Aug 16.
Artículo en Inglés | MEDLINE | ID: mdl-39203861

RESUMEN

Nutrient quality of plant-based meat and fish alternative (MFA) products has been reported as variable. The present objective was to compare the nutrient density of raw meat and fish with MFA products and to examine MFA ingredients and fortification patterns. Nutrient composition data for raw beef, pork, and chicken (n = 450) came from the USDA Standard Reference Legacy Reselase (SR28) nutrient composition database (n = 450). Data for plant-based meat alternatives (n = 118) came from the USDA Branded Food Products Database (BFPDB). Data for fish and seafood (n = 68) and alternatives (n = 12) came from the Danish Frida Database and Mintel (n = 503). Analyses compared macronutrient content and selected micronutrients per 100 g and percentage of US Daily Values. Nutrient density scores were based on the NRF5.3 algorithm. NRF5.3 scores were significantly lower for MFA products as compared to meat or fish. Saturated fat content was lower, but the mean MFA sodium content was 660 mg/100 g compared to 60 mg/100 g for beef. Mean protein content (17 g) was lower than for beef and pork (20 g). A search of ingredient lists found that fortification with most nutrients associated with animal source proteins (such as B vitamins, vitamin D, iodine, zinc, and omega-3 EPA and DHA) was minimal. Plant-based MFA products would benefit from nutrient standards and fortification guidelines to ensure that these products are not nutritionally inferior to the originals.


Asunto(s)
Alimentos Fortificados , Nutrientes , Valor Nutritivo , Animales , Alimentos Fortificados/análisis , Bovinos , Nutrientes/análisis , Carne/análisis , Peces , Alimentos Marinos/análisis , Pollos , Porcinos , Micronutrientes/análisis
10.
Nutrients ; 16(16)2024 Aug 20.
Artículo en Inglés | MEDLINE | ID: mdl-39203910

RESUMEN

The EAT-Lancet commission advocated a planetary health diet in 2019. Some have raised concerns about its nutrient adequacy. This study used data from recent Nutrition and Health Surveys in Taiwan-from 2017 to 2020 (n = 6538)-to assess food intake and nutrient adequacy among three red meat consumption levels (low/medium/high). The low red meat group, whose diet was similar to the EAT-Lancet reference, showed significantly higher/better levels of vitamins C and E, calcium, magnesium, sodium, dietary fiber, and the polyunsaturated to saturated fatty acids ratio. However, protein, B vitamins, phosphorus for females, and zinc were slightly compromised, but they were still near or above 100% of the Daily Reference Intakes (DRIs), except for zinc (74~75%). The intake levels of vitamin D, calcium, and dietary fiber in all three groups at times did not reach 70% of the DRIs, but this was more pronounced in the high red meat group compared to the low red meat group. Replacing ultra-processed foods (UPFs) with whole/healthy foods improved levels of zinc, calcium, and dietary fiber, but not vitamin D. Finally, a proposed local planetary health dietary construct was provided, suggesting maintaining the original distribution of the food groups recommended by the Taiwan Food Guide while specifying amounts of protein sources in line with the EAT-Lancet principles. The proposed diet, according to our estimation and comparison with Taiwanese DRIs, was nearly perfect in its nutrient composition.


Asunto(s)
Valor Nutritivo , Taiwán , Humanos , Femenino , Masculino , Adulto , Persona de Mediana Edad , Encuestas Nutricionales , Dieta Saludable/estadística & datos numéricos , Dieta/estadística & datos numéricos , Ingesta Diaria Recomendada , Dieta Vegetariana , Adulto Joven , Carne/análisis , Nutrientes/análisis , Adolescente , Dieta a Base de Plantas
11.
Sensors (Basel) ; 24(16)2024 Aug 12.
Artículo en Inglés | MEDLINE | ID: mdl-39204905

RESUMEN

One of the most promising approaches to food quality assessments is the use of impedance spectroscopy combined with machine learning. Thereby, feature selection is decisive for a high classification accuracy. Physically based features have particularly significant advantages because they are able to consider prior knowledge and to concentrate the data into pertinent understandable information, building a solid basis for classification. In this study, we aim to identify physically based measurable features for muscle type and freshness classifications of bovine meat based on impedance spectroscopy measurements. We carry out a combined study where features are ranked based on their F1-score, cumulative feature selection, and t-distributed Stochastic Neighbor Embedding (t-SNE). In terms of features, we analyze the characteristic points (CPs) of the impedance spectrum and the model parameters (MPs) obtained by fitting a physical model to the measurements. The results show that either MPs or CPs alone are sufficient for detecting muscle type. Combining capacitance (C) and extracellular resistance (Rex) or the modulus of the characteristic point Z1 and the phase at the characteristic frequency of the beta dispersion (Phi2) leads to accurate separation. In contrast, the detection of freshness is more challenging. It requires more distinct features. We achieved a 90% freshness separation using the MPs describing intracellular resistance (Rin) and capacitance (C). A 95.5% freshness separation was achieved by considering the phase at the end of the beta dispersion (Phi3) and Rin. Including additional features related to muscle type improves the separability of samples; ultimately, a 99.6% separation can be achieved by selecting the appropriate features.


Asunto(s)
Espectroscopía Dieléctrica , Espectroscopía Dieléctrica/métodos , Animales , Bovinos , Carne/análisis , Aprendizaje Automático , Impedancia Eléctrica , Algoritmos
12.
J Anim Sci ; 1022024 Jan 03.
Artículo en Inglés | MEDLINE | ID: mdl-39177492

RESUMEN

In this study, pigs from 3 supply chains were slaughtered in an Australian summer and winter (n = 20 for each supply chain). The pigs were from 2 sexes (female and castrated male) and 2 carcass weight groups (high: 95.0 to 100.0 kg and low: 75.0 to 80.0 kg). From each carcass, the Biceps femoris (BF), Longissimus thoracis et lumborum (LTL), and Triceps brachii (TB) were excised at 24 h postmortem, vacuum packed, frozen at 24-48 h and transported to the lab. Cooking loss, Warner-Bratzler shear force (WBSF) and texture profile analysis (adhesiveness, chewiness, cohesiveness, hardness, resilience, and springiness) were measured in LTL and BF. pH, collagen content, and solubility and intramuscular fat (IMF) content were determined for all muscles. Results showed that BF was tougher than LTL, and winter samples were tougher than summer ones (P < 0.05). The TB had higher pH, collagen, and IMF content than BF and LTL (P < 0.05). Collagen solubility was higher in castrated male and winter samples. pH, collagen solubility, and IMF content were significantly (P < 0.05) related to chewiness and hardness in pork BF and LTL. pH and IMF were also related to cooking loss, while collagen solubility and IMF were related to WBSF (P < 0.05). The relationships of pH and IMF with pork texture were predominantly driven by the LTL, while the relationships between collagen solubility and texture were predominantly driven by the BF. Collagen solubility and IMF of pork BF and TB were related to those of LTL, but the correlations were not strong enough for prediction. Pork texture and chemical components were affected by muscle, seasons, sex and carcass weight. pH, collagen solubility, and IMF-affected pork texture.


Pork quality was affected by the season, sex, and weight of the pigs and muscle type. In this study, we determined how season, sex, weight, and muscle affected pork chemical components and texture and, how pH, collagen and intramuscular fat affected pork texture. The results showed that pork silverside was tougher than the loin, while pork collected during winter was tougher than that collected during summer. The pork shoulder had higher pH, intramuscular fat, and collagen content than silverside and loin. Pork with higher pH, collagen solubility, and intramuscular fat content would be the tenderest.


Asunto(s)
Tejido Adiposo , Colágeno , Músculo Esquelético , Estaciones del Año , Animales , Masculino , Femenino , Colágeno/química , Colágeno/metabolismo , Músculo Esquelético/química , Músculo Esquelético/fisiología , Porcinos/fisiología , Peso Corporal , Factores Sexuales , Carne/análisis , Carne/normas , Culinaria
13.
Sci Rep ; 14(1): 18633, 2024 08 11.
Artículo en Inglés | MEDLINE | ID: mdl-39128913

RESUMEN

The number of birds or their total live weight in relation to a given area is known as stocking density; higher stocking densities will cause more stress to the birds, which may have an impact on their physiological state, productivity, carcass quality, growth performance, immunity, metabolism, and meat quality. The present study aimed to investigate the potential impact of 2 different stocking densities on growth performance, carcass characteristics, meat quality, serum, and expression of Insulin like growth factor-1 (IGF-1), muscle regulatory genes expression and serum biochemical indicators of broilers supplemented with essential oils (EO). In total, 784-day-old chicks of Ross 308 were randomly assigned into 4 different groups with 7 replicates for each: Normal feed (no essential oils [EO] added) and normal stocking as 9 bird/m2, (NSD). Normal feed (no essential oils [EO] added) and high stocking as 14 bird/m2, (HSD). Feed with essential oils (Digestarom DC® 150 g/Ton of feed) and normal stocking as 9 birds/m2, (NSD + EO). Feed with essential oils (Digestarom DC® 150 g/Ton of feed) and high stocking as 14 birds/m2, (HSD + EO) for 35 days. Bodyweight was recorded at the beginning of the trial and then at the end of each week, feed intake was recorded at the end of each week as well. A total of 28 birds (7 birds per treatment) birds were slaughtered at 35 days of age to evaluate each parameter. The HSD group had the lowest (P < 0.05) feed intake. The NSD groups showed the highest (P < 0.05) body weight gain compared to HSD groups. The HSD + EO had lower adjusted FCR (P < 0.05) compared to HSD. The legs % was the highest (P < 0.05) for NSD group, while HSD + EO had the highest (P < 0.05) Fat Pad percentage. Moreover, HSD had the highest CL%, and the lowest WHC and Warner-Bratzler shear force. For biochemical indicators, (IGF-1) was the lowest (P < 0.05) HSD group. Also, Mammalian Target of Rapamycin (mTOR) and Aspartate Aminotransferase (AST) were higher (P < 0.05) in the EO supplemented groups. Regarding gene expression, the results showed that Myogenin (MyoG) and IGF-1 were lower in HSD while MSTN was higher in the same group, (P < 0.05). In brief, essential oil supplement has improved the performance of broilers under high stocking density situation.


Asunto(s)
Alimentación Animal , Pollos , Suplementos Dietéticos , Factor I del Crecimiento Similar a la Insulina , Carne , Aceites Volátiles , Extractos Vegetales , Animales , Pollos/crecimiento & desarrollo , Carne/análisis , Alimentación Animal/análisis , Extractos Vegetales/farmacología , Extractos Vegetales/administración & dosificación , Factor I del Crecimiento Similar a la Insulina/metabolismo , Aceites Volátiles/farmacología , Aceites Volátiles/administración & dosificación , Fenómenos Fisiológicos Nutricionales de los Animales
14.
Sci Rep ; 14(1): 18557, 2024 08 09.
Artículo en Inglés | MEDLINE | ID: mdl-39122731

RESUMEN

This study aimed to evaluate the effects of dietary supplementation of nanoparticles of Selenium (Nano-Se) on productive performance, nutrient digestibility, carcass criteria, selenium retention, blood biochemistry, and histopathological examination of broiler chicken. A total of 192 1-day-old male broiler chickens (Cobb 500) were randomly assigned to one of four treatment diets, with each diet given to six replicates of eight chicks. The birds were randomly assigned to one of four treatment groups, each of which included Nano-Se at levels of 0, 0.2, 0.3, or 0.4 mg/kg. The feeding experiment lasted 35 days. Nano-Se addition to broiler diets at 0.2 and 0.3 mg/kg enhanced body weight and body weight gain linearly compared to the control diet and 0.4 mg/kg. The apparent digestibility coefficient of ether extracts linearly increased with increasing Nano-Se levels up to 0.4 mg/kg. Increasing Nano-Se decreased serum cholesterol, triglycerides, alanine aminotransaminase, aspartate aminotransaminase, and creatinine in broiler chickens. Also, serum antioxidants showed a significant increase with increasing Nano-Se levels. As Nano-Se levels were supplemented, improvements in cooking loss, water-holding capacity, and antioxidants were observed as compared to the control. Additionally, a noticeable improvement in meat quality was observed regarding the obtained meat characters. It was preferred to use low doses of Nano-Se (0.3 mg/kg), as tissue retention of Se for both meat and liver was more comparable to the control. In conclusion, nutritional supplementation with Nano-Se increased growth performance, nutrient digestibility, selenium retention, meat quality, blood biochemistry, histological indices, and antioxidant activity of broiler chickens. Overall, the best performance of broilers was observed with Nano-Se supplementation at 0.3 mg/kg, highlighting its potential as a novel supplement for broiler diets.


Asunto(s)
Alimentación Animal , Pollos , Suplementos Dietéticos , Nanopartículas , Selenio , Animales , Pollos/crecimiento & desarrollo , Selenio/administración & dosificación , Selenio/farmacología , Alimentación Animal/análisis , Nanopartículas/química , Masculino , Antioxidantes/metabolismo , Carne/análisis , Fenómenos Fisiológicos Nutricionales de los Animales , Dieta/veterinaria
15.
Food Chem ; 460(Pt 3): 140638, 2024 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-39182444

RESUMEN

To investigate the combination effect of sodium chloride and phosphates on chicken breast myofibrillar proteins, MP gels containing various molarity of NaCl (0.15, 0.30 and 0.45 M) and phosphate (0 and 0.05 M) were prepared, their rheological properties were characterized, and applied to an in vitro digestion model. MP mixture containing 0.45 M NaCl and 0.05 M phosphate had the highest viscosity. The gel strength and cooking yield of MP gels was improved by increasing of molarity of NaCl. As NaCl concentration in MP increased, sulfhydryl levels decreased, while disulfide levels increased. As NaCl and phosphate levels increase, MP gels become denser and porosity decreases, which may reduce protein digestibility. In SDS-PAGE, protein bands from MP gels containing low NaCl levels (≤ 0.30 M) degraded more rapidly during in vitro digestion. These results may support the need for the meat industry to develop low-salt meat products with improved digestibility. KEYWORDS: Chicken, Myofibrillar protein, NaCl, Phosphate, Rheological properties, In vitro digestion.


Asunto(s)
Pollos , Digestión , Geles , Proteínas Musculares , Miofibrillas , Fosfatos , Cloruro de Sodio , Animales , Cloruro de Sodio/química , Geles/química , Fosfatos/química , Miofibrillas/química , Miofibrillas/metabolismo , Proteínas Musculares/química , Proteínas Musculares/metabolismo , Reología , Modelos Biológicos , Carne/análisis , Viscosidad
16.
Food Chem ; 460(Pt 3): 140709, 2024 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-39098220

RESUMEN

With an increasing emphasis on health and environmental consciousness, there is a growing inclination toward plant protein-based meat substitutes as viable alternatives to animal meat. In the pursuit of creating diverse and functional plant protein-based substitutes, innovative plant proteins have been introduced in conjunction with soy protein isolate (SPI), encompassing pea protein isolate (PPI), rice bran protein (RBP), fava bean protein isolate (FPI), and spirulina protein isolate (SPPI). Notably, SPI-WG extrudates and SPI-PPI extrudates exhibited superior fiber structures (fiber degrees were 1.72 and 1.88, respectively), with coarse fibers in SPI-WG extrudates and fine, dense fibers in SPI-PPI extrudates. The addition of RBP, FPI and SPPI had minimal effect on fiber structure. Fresh SPI-FPI displayed the slowest rate of water loss, losing about 7.11% of their total weight in 5 h. Different plant proteins can be selected for the preparation of plant protein-based meat substitutes according to practical needs.


Asunto(s)
Proteínas de Plantas , Proteínas de Plantas/química , Proteínas de Soja/química , Oryza/química , Manipulación de Alimentos , Animales , Productos de la Carne/análisis , Carne/análisis , Spirulina/química , Sustitutos de la Carne
17.
Food Chem ; 460(Pt 3): 140659, 2024 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-39111039

RESUMEN

Adulteration of meat is a global issue, necessitating rapid, inexpensive, and simple on-site testing methods. Therefore, the present study aimed to develop a one-minute toothpick-based DNA extraction method, a handheld microfluidic chip, and a smartphone-controlled portable analyzer for detecting multiple meat adulterations. A toothpick was inserted into the meat to promote DNA release and adsorption. Furthermore, a handheld microfluidic chip was designed for DNA elution on toothpicks and fluid distribution. Finally, a smartphone-actuated portable analyzer was developed to function as a heater, signal detector, and result reader. The portable device comprises a microcontroller, a fluorescence detection module, a step scanning unit, and a heating module. The proposed device is portable, and the app is user-friendly. This simple design, easy operation, and fast-response system could rapidly detect as little as 1% of simulated adulterated samples (following UK standards) within 40 min at a cost of less than USD 1 per test.


Asunto(s)
ADN , Contaminación de Alimentos , Carne , Contaminación de Alimentos/análisis , Carne/análisis , ADN/aislamiento & purificación , ADN/análisis , Animales , Técnicas de Amplificación de Ácido Nucleico/instrumentación , Técnicas de Amplificación de Ácido Nucleico/métodos , Teléfono Inteligente , Dispositivos Laboratorio en un Chip , Técnicas de Diagnóstico Molecular
18.
Food Chem ; 460(Pt 3): 140696, 2024 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-39111042

RESUMEN

Cultured meat, an emerging meat production technology, has reduced environmental burden as well as provide healthier and more sustainable method of meat culture. Fat in cultured meat is essential for enhancing texture, taste, and tenderness. However, current cultured meat production method is limited to single-cell type. To meet the consumer demands for cultured meat products, it is crucial to develop new methods for producing cultured meat products that contain both muscle and fat. In this study, cell viability and differentiation were promoted by controlling the ratio and cultivation conditions of myocytes and adipocytes. The total digestibility of cultured meat exceeded 37%, higher than that of beef (34.7%). Additionally, the texture, appearance, and taste of the co-cultured meat were improved. Collectively, this research has great promise for preparing rich-nutritious and digestion cultured meat.


Asunto(s)
Adipocitos , Técnicas de Cocultivo , Animales , Bovinos , Adipocitos/citología , Adipocitos/metabolismo , Humanos , Diferenciación Celular , Células Musculares/metabolismo , Células Musculares/citología , Productos de la Carne/análisis , Supervivencia Celular , Carne/análisis , Carne in Vitro
19.
Food Chem Toxicol ; 192: 114910, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39121894

RESUMEN

Meat is a highly nutritious food but there is a lot of significant evidence of negative health outcomes related to its excessive consumption, especially for processed one. Among the variety of emerging contaminants of concern for human health, a key role is played by poly- and per-fluoroalkyl substances (PFASs), which show adverse effects in humans who are exposed to them through diet. In the present study, for the first time, 70 paired batches of pre-cooked and canned bovine meat were analysed by Liquid Chromatography coupled to High Resolution Mass Spectrometry to evaluate the presence and concentration of 18 PFASs. These data were used to assess Italian consumers' health risks by performing the PFAS intake evaluation. PFBA and PFOS were detected in the precooked and canned meat samples, with PFBA mean concentration of 0.22 ± 0.36 ng g-1, and

Asunto(s)
Fluorocarburos , Contaminación de Alimentos , Carne , Animales , Bovinos , Fluorocarburos/análisis , Contaminación de Alimentos/análisis , Carne/análisis , Humanos , Seguridad de Productos para el Consumidor , Italia
20.
Animal ; 18(8): 101249, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-39096600

RESUMEN

The red seaweed Asparagopsis taxiformis has a potent antimethanogenic effect, which has been proven both in vitro and in vivo. Vegetable oil immersions of this seaweed (hereafter Bromoil) help stabilise the bromoform (CHBr3) responsible for its antimethanogenic effect. We evaluate the effects of increasing the levels of CHBr3 in lamb diets on growth performance, methane (CH4) production, animal health and meat quality. Twenty-four Merino Branco ram lambs were fed a ground complete compound feed, supplemented with 50 mL/kg DM of sunflower oil with different CHBr3 content. The treatments were defined by the CHBr3 doses in the oil: 0 mg (control - B0), 15 mg (B15), 30 mg (B30) and 45 mg (B45) of CHBr3 per kg of feed DM. The feed was prepared daily by mixing Bromoil with the compound feed. At the end of the experiment, the lambs were sacrificed, the ruminal content was collected for in vitro fermentation to evaluate CH4 production and organic matter (OM) degradability, and the rumen mucosa was sampled for histological examination. Meat samples were collected for chemical composition and CHBr3 analysis. The half-life of CHBr3 in the air-exposed feed was 3.98 h making it very difficult to establish the practiced level of CHBr3 supplementation. Lambs-fed treatments B30 and B45 decreased DM intake by up to 28%. Average daily gain was also reduced due to CHBr3 supplementation, with B45 showing results 40% lower than B0. DM feed conversion ratio was similar for all treatments. The degradability of OM, the volume of total gas and of gas without CH4 were unaffected by the experimental treatments, evaluated by the in vitro method. However, the volume of CH4 decreased by up to 75% for treatments above 30 mg/kg DM, while the yield of CH4/g OM degraded was reduced by up to 78% with treatments above 30 mg/kg DM. Meat chemical composition was not affected by Bromoil supplementation and no traces of CHBr3 were found in meat samples. During this experiment, the animals presented normal health and behaviour. However, postslaughter examination of the rumen showed distinct lesions on the ventral region of the rumen mucosa of animals supplemented with Bromoil. These lesions were more severe in the animals receiving treatments B30 and B45. This research determined that although concentrations of CHBr3 in the diet above 30 mg/kg DM helped to reduce CH4 emissions, it negatively affected the performance and rumen wall.


Asunto(s)
Alimentación Animal , Suplementos Dietéticos , Metano , Rhodophyta , Rumen , Aceite de Girasol , Animales , Masculino , Alimentación Animal/análisis , Fenómenos Fisiológicos Nutricionales de los Animales/efectos de los fármacos , Suplementos Dietéticos/análisis , Fermentación , Carne/análisis , Metano/metabolismo , Rhodophyta/química , Rumen/metabolismo , Ovinos , Oveja Doméstica , Aceite de Girasol/administración & dosificación
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