牦牛肾脂氧化初期脂肪酸动态变化研究

被引：3

作者：

王强 ^{[1
,2
]}

张盛贵 ^{[2
]}

张玉斌 ^{[2
]}

张海容 ^{[3
]}

袁君 ^{[2
]}

刘婷 ^{[2
]}

吴建平 ^{[4
]}

机构：

[1] 重庆教育学院生命科学与化学系

[2] 甘肃农业大学食品科学与工程学院

[3] 德州学院农学系

[4] 甘肃农业大学动物科学技术学院

来源：

食品工业科技 | 2010年 / 31卷 / 01期

关键词：

牦牛肾脂肪; 脂肪酸; PV; TBARS; 氧化初期; 变化;

D O I：

10.13386/j.issn1002-0306.2010.01.054

中图分类号：

TS251.1 [基础科学];

学科分类号：

摘要：

以牦牛肾周脂为研究对象,研究了其在15±1℃下储藏期脂肪酸的动态变化。结果表明:牦牛肾脂肪氧化初期发生于储藏期第0～25d(15±1℃),在此期间,饱和脂肪酸(SFA)含量由49.68%提高至55.96%,多不饱和脂肪酸(PUFA)含量和单不饱和脂肪酸(MUFA)分别由10.73%和37.85%下降至6.95%和28.22%。第0～20d,n-6/n-3PUFA的比率低于4,但在第25d达到4.46,并且MUFA/SFA较PUFA/SFA下降幅度高11.24%。此外,除共轭亚油酸(CLA)和油酸(LA)外,功能性脂肪酸(ARA,EPA,DHA)在10d后下降显著(p<0.05)。

引用

页码：130 / 133+137 +137

页数：5

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