口虾蛄肌肉与副产物脂质特征分析  

Characterization of lipid profiles of muscles and by-products in Oratosquilla oratoria

作　　者：于卓良 李德阳[1] 阴法文 周大勇[1,2] YU Zhuoliang;LI Deyang;YIN Fawen;ZHOU Dayong(School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China;National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学食品学院,辽宁大连116034 [2]大连工业大学国家海洋食品工程技术研究中心,辽宁大连116034

出　　处：《大连工业大学学报》2021年第3期157-163,共7页Journal of Dalian Polytechnic University

基　　金：国家重点研发计划“蓝色粮仓科技创新”重点专项(2018YFD0901000).

摘　　要：为分析口虾蛄肌肉和副产物脂质特征,测定了脂质质量分数、虾青素质量分数、脂质组成、脂肪酸组成、磷脂组成、甘油磷脂分子种。结果表明,冻干口虾蛄肌肉和副产物的脂质质量分数分别为(7.20±0.69)%和(1.86±0.14)%,脂质中虾青素质量分数分别为(0.9±0.01)和(2.09±0.08)μg/g。口虾蛄脂质中富含磷脂(占总脂质61.57%~73.6%)和多不饱和脂肪酸(占总脂肪酸39.56%~44.47%),尤其是二十碳五烯酸(EPA)(占总脂肪酸12.37%~15.06%)和二十二碳六烯酸(DHA)(占总脂肪酸13.89%~13.99%)。口虾蛄磷脂中富含磷脂酰胆碱(摩尔分数55.54%~61.11%),磷脂酰乙醇胺(摩尔分数30.79%~24.86%)。使用三重四极杆质谱鉴定到口虾蛄脂质中约100种甘油磷脂分子种,主要分子种中多包含EPA、DHA等n-3多不饱和脂肪酸(n-3 PUFA)。结果表明,口虾蛄副产物作为磷脂型n-3 PUFA的来源,具有较高的营养价值。To analyze the lipid characteristics of muscle and by-products of Oratosquilla oratoria,the lipid content,astaxanthin content,lipid composition,fatty acid composition,phospholipid composition and glycerophospholipid molecular species were determined.The results showed that the lipid contents of muscle and by-products were(7.20±0.69)%and(1.86±0.14)%,and the astaxanthin contents were(0.9±0.01)and(2.09±0.08)μg/g,respectively.The lipid of Oratosquilla oratoria is rich in phospholipids(61.57%-73.6%)and polyunsaturated fatty acids(39.56%-44.47%),especially eicosapentaenoic acid(EPA)(12.37%-15.06%)and docosahexaenoic acid(DHA)(13.89%-13.99%).The phospholipid of Oratosquilla oratoria is rich in phosphatidylcholine(mole fraction of 55.54%-61.11%)and phosphatidylethanolamine(mole fraction of 30.79%-24.86%).About 100 molecular species of glycerophospholipids were identified by triple quadrupole mass spectrometry.The main molecular species included EPA,DHA and other omega-3 polyunsaturated fatty acids(n-3 PUFA).The results showed that the by-products of Oratosquilla oratoria had high nutritional value as the source of phospholipid type n-3 PUFA.

关 键 词：口虾蛄 脂质 脂肪酸 磷脂 分子种 

分 类 号：TS254.1[轻工技术与工程—水产品加工及贮藏工程]