Effects of garlic extract on color, lipid oxidation and oxidative breakdown products in raw ground beef during refrigerated storage

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XINZHUANG ZHANG
QINGXIANG MENG
LIWEN HE
LIPING ZHAO
LIPING REN

Keywords

garlic extracts, color, lipid oxidation, oxidative breakdown products, raw ground beef

Abstract

The study aims to investigate the effects of garlic extracts on color, lipid oxidation, and oxidative breakdown products in raw ground beef during refrigerated storage. The two treatments were:
control group (C, with no addition) and experiment group (D, 50 mg garlic extracts added to 100 g beef). Adding garlic extracts significant increased a* value (PA ? 0.05), and significant decreased TBARS and PV values (PA ? 0.05). The pH and –SH value of D group had a decreasing tendency (PA=0.0522) and an increasing tendency (PA=0.0636) respectively compared to C group. Garlic extracts protected phospholipids, fatty acids and polypeptides from oxidation. The results indicate
that garlic extracts have the antioxidant activity, helping maintain the meat color, inhibiting lipid oxidation and protein degradation of raw ground beef during refrigerated storage.
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