【英文标准名称】:Animalandvegetablefatsandoils-Determinationofthecompositionoffattyacidsinthe2-positionofthetriglyceridemolecules
【原文标准名称】:动植物油脂.甘油三酯分子在2-位的脂肪酸的组成测定
【标准号】:BSENISO6800-1998
【标准状态】:现行
【国别】:英国
【发布日期】:1998-05-15
【实施或试行日期】:1998-05-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:农产品;动物脂肪;动物油;化学分析和测试;组分;含量测定;脂肪;脂肪酸;食品;熔点;油;甘油三酸酯分析;植物脂肪;植物油
【英文主题词】:Agriculturalproducts;Animalfats;Animaloils;Chemicalanalysisandtesting;Composition;Determinationofcontent;Fats;Fattyacids;Foodproducts;Meltingpoint;Oils;Triglyceridanalysis;Vegetablefats;Vegetableoils
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofthecompositionoffattyacidswhichareesterifiedinthe2-position(βorinternalposition)ofthetriglyceridemoleculesinanimalandvegetablefatsandoils.Becauseofthenatureofpancreaticlipaseaction,themethodisapplicableonlytofatsandoilswithameltingpointbelow45℃.Themethodisnotunreservedlyapplicabletoallfatsandoils,particularlythosecontainingsubstantialamountsof-fattyacidswith12orfewercarbonatoms(e.g.copraoil,palmkerneloil,butyricbutterfats);-fattyacidswith20andmorecarbonatomsandofahighdegreeofunsaturation(morethanfourdoublebonds)(e.g.fishoilandmarineanimaloil);-fattyacidswhichhavesecondarygroupscontainingoxygen.NOTE—Fattyacidswithdoublebondsinthe(n-16)to(n-11)position(e.g.petroselinicacid)areconvertedonlyveryslowlybypancreaticlipase.Thismayleadtowrongresults.
【中国标准分类号】:X14
【国际标准分类号】:67_200_10
【页数】:20P.;A4
【正文语种】:英语