Post-mortem oxidative stability of three yak (Bos grunniens) muscles as influenced by animal age

Wen, Wenting; Luo, Xiaolin; Xia, Baixue; Guan, Jiuqiang; Nie, Ya; Lu, Li-Fan; Duan, Jianan; Suman, Surendranath P.; Sun, Qun

doi:10.1016/j.meatsci.2015.03.014

Cited by 29 publications

(23 citation statements)

References 30 publications

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“…In addition, muscles from older animals tend to have a higher myoglobin content than younger animals (Lawrie, 1985), and the protein oxidation occur faster than the lipid oxidation (Santé-Lhoutellier et al, 2008), mainly when exposed to oxygen environment, which accelerates the oxidation of proteins (Gómez & Lorenzo, 2012). Nonetheless, animals slaughtered older have usually a greater endogenous antioxidant capacity since it is determined by the energy metabolism and hypoxic response for prevent against free radicals and reactive oxygen species (Wen et al, 2015). On the other hand, LD muscle exhibit lower amount of myoglobin and oxygen consumption rate compared to oxidative muscles (Wilson et al, 1976;Morcuende et al, 2003).…”

Section: Protein Oxidationmentioning

confidence: 99%

“…Longissimus dorsi (LD) muscle is predominantly constituted of glycolytic fibers, which have lower amount of myoglobin, lipid, and oxygen consumption rate as well as higher endogenous functional compounds (Jayasen et al, 2015) than oxidative muscle fibers, and therefore are less prone to oxidation (Wilson et al, 1976;Morcuende et al, 2003). On the other hand, slaughtering age affects the levels of lipid and myoglobin, saturated/unsaturated fatty acids ratio, and endogenous antioxidant system of meat (Wen et al, 2015;Malva et al, 2016). Therefore, LD muscle from lambs slaughtered at 10 months of age could be an alternative to encourage the fresh meat local market promoting social and economic benefits in lamb-meat producing countries.…”

Section: Introductionmentioning

confidence: 99%

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Oxidative Stability of Lamb Meat Patties From Longissimus dorsi Muscle Stored Under Refrigeration

Baltar

Baptista

Salim

et al. 2019

JFS

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The aim of this study was to evaluate the oxidative stability of fresh lamb patties from Longissimus dorsi (LD) muscle, obtained from animals slaughtered at 10 months-age, during 9 days under refrigerated storage. Six batches (n = 6) of lamb patties were prepared and analyzed for thiobarbituric acid-reactive substances (TBARS), and for carbonyl content throughout 9 days at 4 °C. TBARS levels were stable (p > 0.05) during first five days of storage and a decrease (p < 0.05) in lipid oxidation was observed on day 9. Carbonyl content increased (p < 0.05) up to day 5, remaining constant (p > 0.05) from day 5 to day 9. We concluded that fresh lamb patties from LD muscle of animals slaughtered with 10 months of age was relatively stable to oxidative process during refrigerated storage without additional treatment, which may represent a viable and interesting alternative for refrigerated meat market.

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Section: Protein Oxidationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Oxidative Stability of Lamb Meat Patties From Longissimus dorsi Muscle Stored Under Refrigeration

Baltar

Baptista

Salim

et al. 2019

JFS

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show abstract

“…Yak ( Bos grunniens) is one of unique rare livestock in Tibetan Plateau and its adjacent areas, and the yield of yak meat is approximately 300 thousand tons every year [12]. Yak meat is the major source of animal protein in local human diet, and has been increasingly becoming popular among the consumers beyond the Tibetan Plateau in recent years [13,14]; whereas yak meat is very low in fat, which leads to some serious problems on meat quality, including bad tenderness, avor and processability. Therefore, the improvement of fat content is one of the main aim for yak beef production.…”

Section: Introductionmentioning

confidence: 99%

The Efffect of Gender Differences to Fat Deposition In Yaks Based on an Integrated Transcriptomic and Metabonomics Analysis

Xiong¹,

Pei²,

Yao³

et al. 2020

Preprint

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Background: The study of fat deposition in yaks of different gender plays a positive role in improving the meat quality and breeding of yaks. In this work, the characteristic of fat deposition in male and female yaks, and the regulations of gender difference to fat deposition in yaks were explored. Result: Compared with male yaks, the female yaks possessed higher or more body fat rate (BFR) of visceral except liver, fat content in muscle and liver and subcutaneous fat (p < 0.05); the cholesterol (CH), triglyceride (TG), very low-density lipoprotein (VLDL), leptin (LEP) and cortisol (COR) in serum of female yaks were higher (p < 0.05 ); meanwhile, the fatty acid synthase (FAS), acetyl-CoA carboxylase (ACC), stearoyl-CoA desaturase (SCD) and diacylglycerol acyltransferase 1 (DGAT-1) in livers of female yaks were higher (p < 0.05). The metabonomics analysis showed 13(S)-HODE, linoleic acid and linolenic acid and myo-inositol in subcutaneous fat of female yaks increased (p < 0.05 ); meanwhile, the transcriptomic analysis the gene expressions of prenylcysteine oxidase 1 (PCYOX1), acyl-coenzyme a-cholesterol acyltransferase (ACAT), protein farnesyltransferase subunit beta (FNTB), apolipoprotein E (ApoE), DGAT2, very long chain fatty acids protein 6 (ELOVL6), NADP-dependent malic enzyme (ME1), SCD, acyl-CoA-binding protein (ACBP) and perilipin-5 (PLIN5), LEP, sterol regulatory element-binding protein 1 (SREBF1) upregulated in subcutaneous fat of female yaks (pFDR < 0.05), whereas the gene expressions of CPT1, acetyl-CoA acyltransferase 1(ACAA1) and adipose triglyceride lipase (ATGL) downregulated (pFDR < 0.01).Conclusion: The fat and cholesterol synthesis increased in liver of female yaks, and the fat transport in blood of female yaks increased too. In subcutaneous fat of female yaks, the high levels of myo-inositol activated the calcium signaling, following the increase of secretion in fat cell. Then, the high levels of LEP and 13(S)-HODE strengthened PPAR signal, and the fat synthesis, cholesterol synthesis, fatty acid biosynthesis of the linoleic and linolenic acid being the precursor increased, whereas lipolysis and fatty acid oxidation decreased by the regulation of downstream genes in PPAR signal. Meanwhile, SREBF1 also played an important part in the regulation of fat metabolism in yaks of different gender.

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“…Yak, a large mammal of the genus Yak, exhibits cold resistance, resistance to oxygen, and low temperature (W. Wen et al., ). Yak is widely distributed in the Qinghai–Tibet Plateau and its adjacent areas.…”

Section: Introductionmentioning

confidence: 99%

Effects of Lactobacillus Casei YBJ02 on Lipid Metabolism in Hyperlipidemic Mice

Qian

Wang

et al. 2019

Journal of Food Science

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Traditionally fermented yak yogurt as a Tibetan dairy product is high not only in nutrients but also in probiotics. A probiotic strain with a potential lipid reducing effect was isolated from yak yogurt. An animal model for hyperlipidemia was evaluated using the blood index and expression levels of lipid metabolism-related proteins in mice to determine the effect of Lactobacillus casei YBJ02 (LC-YBJ02) on lipid metabolism in hyperlipidemic mice and the underlying mechanism. LC-YBJ02 at different concentrations exhibited certain inhibitory effects on the increase in blood lipid in mice. Particularly, high concentrations of LC-YBJ02 can reduce the cholesterol, triglycerides, and low-density lipoprotein content; however, no significant effect on the high-density lipoprotein of the body has been reported. LC-YBJ02 can effectively increase the reduction in cholesterol level by fecal excretion. In this study, the gene-affecting mouse obesity was determined using experimental results in mice. The expression levels of peroxisome proliferator-activated receptor γ (PPARγ ), CCAAT enhancer binding protein alpha (CEBP)/α, sterol regulatory element binding protein (SREBP)-1c, and FAS could improve because of the high-fat diet in kidney fat. Bacteria at different concentrations could also decrease these expression levels. Specifically, the high concentration of LC-YBJ02 could suppress the expression of PPARγ , CEBP/α, and SREBP-1c; however, the expression of FAS was not significantly inhibited. PPARγ and FAS expression levels in the liver were low, but no significant difference was indicated. CEBP/α and SREBP-1c expression in mouse liver was further detected by Western blot analysis; CEBP/α was considerably low and could not be detected. On the basis of these results, LC-YBJ02 could be used as probiotics through its lipid reduction effects.

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Post-mortem oxidative stability of three yak (Bos grunniens) muscles as influenced by animal age

Cited by 29 publications

References 30 publications

Oxidative Stability of Lamb Meat Patties From Longissimus dorsi Muscle Stored Under Refrigeration

Oxidative Stability of Lamb Meat Patties From Longissimus dorsi Muscle Stored Under Refrigeration

The Efffect of Gender Differences to Fat Deposition In Yaks Based on an Integrated Transcriptomic and Metabonomics Analysis

Effects of Lactobacillus Casei YBJ02 on Lipid Metabolism in Hyperlipidemic Mice

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