کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6400686 | 1330876 | 2015 | 4 صفحه PDF | دانلود رایگان |
- Proteomics was employed to discriminate between fresh and freeze-thawed (FT) pork.
- In total, 450 proteins were identified in meat exudates by 2-DE and MS analysis.
- Twenty-two proteins were selected as discrimination markers for fresh or FT pork.
The present study adopted a proteomics approach to discriminate between the expression of different proteins in meat exudates from fresh and freeze-thawed (FT) pork. The porcine longissimus thoracis muscles were stored at 1.0 ± 0.5 °C for 60 h, and the remainder was exposed to freeze-thawing at â20.0 ± 0.5 °C for 48 h and at 1.0 ± 0.5 °C for 12 h. The released meat exudates were collected, and the amount of exudate and the protein content and expression were analyzed. Two-dimensional gel electrophoresis and mass spectrometry (2DE/MS) identified 450 protein spots from meat exudates. The expressions of 15 and 9 proteins were significantly (p < 0.05) higher in the fresh pork and in FT pork, respectively. 22 proteins could be selected as markers to discriminate between fresh and FT pork.
Journal: LWT - Food Science and Technology - Volume 62, Issue 2, July 2015, Pages 1235-1238