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Commission Directive 2008/84/EC (repealed)Show full title

Commission Directive 2008/84/EC of 27 August 2008 laying down specific purity criteria on food additives other than colours and sweeteners (Text with EEA relevance) (Codified version) (repealed)

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E 405 PROPANE-1,2-DIOL ALGINATE

SynonymsHydroxypropyl alginate
1,2-propanediol ester of alginic acid
Propylene glycol alginate
Definition
Chemical namePropane-1,2-diol ester of alginic acid; varies in composition according to its degree of esterification and the percentage of free and neutralised carboxyl groups in the molecule
Chemical formula(C9H14O7)n (esterified)
Molecular weight10 000-600 000 (typical average)
AssayYields, on the anhydrous basis, not less than 16 % and not more than 20 % of CO2 of carbon dioxide
DescriptionNearly odourless, white to yellowish brown fibrous or granular powder
Identification
A.Positive test for 1,2-propanediol and alginic acid after hydrolysis
Purity
Loss on dryingNot more than 20 % (105 oC, 4 hours)
Total propane-1,2-diol contentNot less than 15 % and not more than 45 %
Free propane-1,2-diol contentNot more than 15 %
Water-insoluble matterNot more than 2 % on the anhydrous basis
ArsenicNot more than 3 mg/kg
LeadNot more than 5 mg/kg
MercuryNot more than 1 mg/kg
CadmiumNot more than 1 mg/kg
Heavy metals (as Pb)Not more than 20 mg/kg
Total plate countNot more than 5 000 colonies per gram
Yeast and mouldsNot more than 500 colonies per gram
E. coliNegative in 5 g
Salmonella spp.Negative in 10 g

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