کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8983544 | 1109710 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Variations in metabolite contents and protein denaturation of the longissimus dorsi muscle in various porcine quality classifications and metabolic rates
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
دانش تغذیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The purpose of the present study was to investigate the variations in metabolite contents and muscle protein denaturation in various porcine quality classifications and metabolic rates. A total of 226 crossbred pigs were evaluated. Samples were classified based on muscle pH45Â min and R-value into fast or normal glycolysing group. Drip loss and lightness (L*) were used to assign samples as PSE, RSE, or RFN pork. Normal-glycolysing PSE pork contained an exceptional amount of initial glycogen and the high level of lactate at 24Â h postmortem (PM). The initial levels of metabolites related closely with muscle pH, R-value and protein solubility at 45Â min PM. The fast glycolysing group exhibited severe protein denaturation during the early postmortem period, and among them, fast-glycolysing PSE pork exhibited most pronounced protein denaturation. Via examination of each sarcoplasmic protein fraction, it was found that the bands for fructose-6-phosphate kinase, creatine kinase, triosephosphate isomerase, and myokinase were generally more evident as fainter bands in the fast-glycolysing pigs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Meat Science - Volume 71, Issue 3, November 2005, Pages 522-529
Journal: Meat Science - Volume 71, Issue 3, November 2005, Pages 522-529
نویسندگان
Y.C. Ryu, Y.M. Choi, B.C. Kim,