食品科学2018，Vol.39Issue(11)：26-31,6.DOI:10.7506/spkx1002-6630-201811005
杀菌温度对乳化肠中脂肪酸组成和脂肪氧化的影响
Effect of Sterilization Temperature on Fatty Acid Composition and Lipid Oxidation of Emulsified Sausage
摘要
Abstract
The objective of this study was to evaluate the effect of different sterilization temperatures on the fatty acid composition and lipid oxidation of emulsified sausage. The lipids were extracted with chloroform and methanol, saponificated and methylated before being analyzed by gas chromatography-mass spectrometry. The results showed that fatty acid composition and lipid oxidation changed after emulsified sausages were sterilized at different temperatures. When sterilization temperature exceeded 100 ℃, the content of saturated fatty acids (SFA) increased significantly (P ＜ 0.05), while the content of unsaturated fatty acids (UFA) decreased significantly (P ＜ 0.05); the content of polyunsaturated fatty acids (PUFA) decreased highly significantly (P ＜ 0.01), but no significant difference was noted in the content of monounsaturated fatty acids (MUFA) (P ＞ 0.05). n-6 PUFA/n-3 PUFA ratio and PUFA/SFA ratio significantly increased and decreased, respectively. Meanwhile, sterilization at 100-110 ℃ significantly improved peroxide value (POV) and thiobarbituric acid reactive substances (TBARS) value. Sterilization at above 100 ℃ significantly increased the contents of C14:0, C16:0, C18:0and C20:0and decreased significantly the contents of C18:2n6, C18:3n3, C20:3n6and C20:4n6, while C20:5n3and C22:6n3were undetectable in the sterilized sausages. Therefore, sterilization at below 100 ℃ could maintain the fatty acid composition of sausages to the greatest extent. Sterilization at above 100 ℃ significantly damaged the proportion of fatty acids, and promoted significantly lipid oxidation. This study can provide technical support for the application of sterilization in the production of meat products.关键词
杀菌温度/乳化肠/脂肪酸/脂肪氧化Key words
sterilization temperature/ emulsified sausage/ fatty acid/ lipid oxidation分类
轻工纺织引用本文复制引用
周慧敏,赵燕,任双,李素,赵冰,潘晓倩,陈文华,曲超,张顺亮..杀菌温度对乳化肠中脂肪酸组成和脂肪氧化的影响[J].食品科学,2018,39(11):26-31,6.基金项目
"十二五"国家科技支撑计划项目(2015BAD28B01) （2015BAD28B01）
