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GC-MS法分析荔枝果肉脂肪酸组成

作  者:
钟慧臻;徐玉娟;李春美;温靖;吴继军;刘亮
单  位:
华中农业大学食品科技学院;广东省农业科学院蚕业与农产品加工研究所
关键词:
荔枝果肉;脂肪酸;气相色谱-质谱(GC-MS)法
摘  要:
采用氯仿甲醇(CM)法提取荔枝果肉中的脂肪酸,经甲酯化处理用气相色谱-质谱联用仪进行分析。结果分离鉴定出16种脂肪酸,其主要化学成分为不饱和脂肪酸;含量最高的成分为油酸(44.405%),其次为棕榈酸(25.144%),再次为亚油酸(18.905%);其中直链饱和脂肪酸(SFA)为28.44%,单不饱和脂肪酸(MUFA)为52.46%,多不饱和脂肪酸(PUFA)为19.11%。
译  名:
GC-MS Analysis of Fatty Acid Composition of Litchi Pulp
作  者:
ZHONG Hui-zhen1,XU Yu-juan2,LI Chun-mei1,WEN Jing2,WU Ji-jun2,LIU Liang2(1.College of Food Science and Technology,Huazhong Agricultural University,Wuhan 430070,China;2.The Sericulture and Farm Produce Processing Research Institute of Guangdong Academy of Agricultural Sciences,Guangdong Open Access Laboratory of Agricultural Product Processing,Guangzhou 510610,China)
关键词:
litchi pulp;fatty acid;GC-MS
摘  要:
A GC-MS method was developed for the fatty acid composition analysis of litchi pulp.Fatty acids were extracted from litchi pulp using a mixture of chloroform and methanol(2:1,V/V) and esterfied with methanol prior to GC-MS.A total of 16 fatty acids were isolated and identified,and most of them were unsaturated fatty acids,especially the content of 9-octadecenoic acid was the highest(44.405% of total fatty acids) followed by hexadecanoic acid(25.144%) and 9,12-octadecadienoic acid(18.905%).On the whole,straight-chain saturation fatty acids(SFA) accounted for 28.44%,monounsaturated fatty acids(MUFA) 52.46% and polyunsaturated fatty acids(PUFA) 19.11%.

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