2014年湖南地区淡水产品脂肪酸组成及分析  

Composition and analysis of fatty acids in freshwater products in Hunan Province in 2014

作　　者：杨静玥 李谭瑶[1] 袁春晖[1] 冯家力[1] 范翔[1] 周丽平[1] 李轶[1] 曾栋[1] Yang Jingyue;Li Tanyao;Yuan Chunhui;Feng Jiali;Fan Xiang;Zhou Liping;Li Yi;Zeng Dong(Hunan Provincial Center for Disease Control and Prevention,Changsha 410008,China)

机构地区：[1]湖南省疾病预防控制中心,长沙410008

出　　处：《卫生研究》2020年第4期554-560,共7页Journal of Hygiene Research

基　　金：国家卫生健康委员会食物成分监测项目:湖南省卫生计生委科研基金(No.C2015-064)。

摘　　要：目的对湖南地区多种淡水产品的脂肪酸组成进行调查研究。方法监测湖南省各地区具有代表性的淡水产品,取其可食部分进行气相色谱检测,统计分析获得脂肪酸指纹图谱。结果共监测18种淡水产品,每种淡水产品检出脂肪酸14~26种。其中饱和脂肪酸12种,含量0.74~3143 mg/100 g;单不饱和脂肪酸9种,含量1.23~2790 mg/100 g;多不饱和脂肪酸(polyunsaturated fatty acids,PUFA)10种,含量1.75~2832 mg/100 g,多不饱和脂肪酸中,n-6与n-3的比值范围0.24∶1~15.7∶1。结论湖南地区淡水产品脂肪酸组成以不饱和脂肪酸为主,多数淡水产品富含n-3 PUFA,且n-6 PUFA与n-3 PUFA的比值小于6,有利于食用人群的营养膳食平衡,其脂肪酸的组成及含量具有理想的营养价值。OBJECTIVE To investigate the nutritional composition of fatty acids in freshwater products in Hunan Province.METHODS The edible parts of freshwater products were detected by gas chromatography,and fatty acid fingerprints were obtained by statistical analysis.RESULTS A total of 18 freshwater products were monitored and 14-26 fatty acids were detected in each freshwater product.Among them,12 were saturated fatty acids(SFA),ranging from 0.74 to 3143 mg/100 g,9 were monounsaturated fatty acids(MUFA),ranging from 1.23 to 2790 mg/100 g,and 10 were polyunsaturated fatty acids(PUFA),ranging from 1.75 to 2832 mg/100 g.The ratio of n-6 to n-3 in polyunsaturated fatty acids ranged from 0.24∶1 to 15.7∶1.CONCLUSION The composition of fatty acids in freshwater products in Hunan Province is mainly unsaturated fatty acids.Most freshwater products are rich in n-3 PUFA,and the ratio of n-6 PUFA to n-3 PUFA is less than 6,which is beneficial to the nutritional balance.The composition and content of fatty acids have ideal nutritional value.

关 键 词：脂肪酸 淡水产品 营养评价 

分 类 号：R151.3[医药卫生—营养与食品卫生学]