ACETIC and FATTY ACID ESTERS of GLYCEROL-乙酸和脂肪酸甘油酯.pdf

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1、ACETICandFATTYACIDESTERSofGLYCEROLPreparedatthe17thJECFA(1973),publishedinFNP4(1978)andinFNP52(1992)Metalsspecificationsrevisedatthe55thJECFA(2000).AnADI'notlimited'wasestablishedatthe17thJECFA(1973)SYNONYMSAceticacidestersofmono-anddiglycerides,acetoglycerides,acetylatedmono-

2、anddiglycerides,INSNo.472aDEFINITIONMixedglycerolestersofaceticacidandfattyacidsoffoodfats.Containsmono-anddiestersoffattyacidswithglycerolwhichisitselfpartiallyacetylated;mayalsocontainfreeglycerolandfreefattyacids.StructuralformulawhereR1,R2andR3eachmaybeafattyacidmoiety,-CO

3、CH3orHDESCRIPTIONFromliquidtosolidinconsistency;whitetopaleyellow,mayhavetheodourofaceticacidThearticleofcommercemaybefurtherspecifiedasthesaponificationvalue,acidvalue,freefattyacidcontent,solidificationpointofthefreefattyacids,Reichert-Meisslvalue,iodinevalueandfreeglycerolc

4、ontent.FUNCTIONALUSESEmulsifierCHARACTERISTICSIDENTIFICATIONSolubility(Vol.4)Insolubleinwater;solubleinethanolTestforfattyacid(Vol.4)PassestestTestforaceticacidPassestest(Vol.4)Testforglycerol(Vol.4)PassestestPURITYAcidsAcidsotherthanaceticandfattyacidsshallnotbedetectableLead

5、(Vol.4)Notmorethan2mg/kgDetermineusinganatomicabsorptiontechniqueappropriatetothespecifiedlevel.TheselectionofsamplesizeandmethodofsamplepreparationmaybebasedontheprinciplesofthemethoddescribedinVolume4,“InstrumentalMethods.”