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1、CALCIUMSTEAROYL-2-LACTYLATEPreparedatthe46thJECFA(1996),publishedinFNP52Add4(1996)supersedingspecificationspreparedatthe44thJECFA(1995),publishedinthFNP52Add3(1995).Metalsandarsenicspecificationsrevisedatthe55thJECFA(2000).AnADIof0-20mg/kgbwwasestablishedatthe17JECFA(1
2、973).SYNONYMSCalciumstearoyllactylate,calciumstearoyllactate,INSNo.482(i)DEFINITIONAmixtureofcalciumsaltsofstearoyllactylicacidsandminorproportionsofothersaltsofrelatedacids,formedbytheesterificationofcommercialstearicacidwithlacticacidandneutralizedtothecalciumsalts;m
3、aycontainunneutralizedpalmitoylandstearoyllactylicacid,freefattyacids(principallypalmiticandstearicacid),freelacticacidandsaltsoffattyacidestersoflacticandpolymerizedlacticacid.ChemicalnamesCalciumdi-2-stearoyllactate,calciumdi-(2-stearoyloxy)propionate(majorcomponents
4、)C.A.S.number5793-94-2ChemicalformulaC42H78O8Ca;C38H70O8Ca(majorcomponents)StructuralformulawhereRisC17H35orC15H31andthemeanvalueofndependentontheproportionoflacticacidpresentDESCRIPTIONWhiteorslightlyyellowishpowderorbrittlesolidwithacharacteristicodourFUNCTIONALUSESE
5、mulsifier,stabilizerCHARACTERISTICSIDENTIFICATIONSolubility(Vol.4)SlightlysolubleinhotwaterTestforcalciumAdd10mlofdilutehydrochloricacidTSto2gofthesample,heatfor5mininawaterbath,filterandneutralizethefiltratewithammoniaTS.Retaintheresiduefromthefilterforthetestforfatty
6、acids.Tothefiltrate,add5mlofammoniumoxalateTS.Awhiteprecipitateisformed,solubleindilutehydrochloricacidTS,butinsolubleindiluteaceticacidTS.TestforfattyacidsTaketheresiduefromthefilterinthetestforcalcium,add30mlofsodiumhydroxideTS,heatfor30minonasteambathandfilter.Add20
7、mlofdilutehydrochloricacidTStothefiltrateaftercooling,extracttwicewith30mlofdiethylether,washtheethersolutionwith20mlofwater,drywithanhydroussodiumsulfateandevaporatetheether.Theresiduemeltsbetween54and69o.Testforlactate(Vol.4)PassestestPURITYCalciumcontentNotlessthan1
8、.0%andnotmorethan5.2%SeedescriptionunderTESTSTotallacticacidNotlessthan15%andnotmorethan40%SeedescriptionunderTESTSAc
