三种测定粮食脂肪酸值标准方法的比较  

COMPARISON OF THREE STANDARD METHODS FOR DETERMINING FATTY ACID VALUE IN GRAIN

作　　者：杨慧萍[1] 宋伟[1] 王素雅[1] 毛娟[1] 李贞[1] 李远新[2] 

机构地区：[1]南京财经大学 [2]国家粮食局成都粮食储藏科学研究所,610031

出　　处：《粮食储藏》2006年第2期43-46,共4页Grain Storage

摘　　要：脂肪酸值是粮食品质劣变的灵敏指标之一。我国目前的测定方法GB5510-85是采用苯提取脂肪酸、GB/T15684-95是采用无水乙醇提取脂肪酸,国际标准ISO7305:1998是用95%乙醇提取脂肪酸。为了与国际标准接轨,对三种标准方法进行对照实验,并将提取的脂肪酸进行气相色谱分析,得出方法之间的差异,为今后修订国家标准提供参考。Fatty acid value is one of sensitive indexes of grain quality. Fatty acid was extracted by benzene in national standard GB5510 -85 and by alcohol in national standard GB/T15684 - 95, while 95 % alcohol was used in international standard ISO7305：1998. In the paper, the three methods were studied and compared, and fatty acids extracted with the three methods was analysed by GC, the difference among GB5510 - 85, GB/T15684 - 95 and ISO7305 ： 1998 were found finaUy. The results could be used as a reference to revise national standard.

关 键 词：脂肪酸值 GB5510—85 GB/T15684—95 ISO7305:1998 气相色谱 

分 类 号：TS210.7[轻工技术与工程—粮食、油脂及植物蛋白工程] X830.2[轻工技术与工程—食品科学与工程]