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Safety evaluation of certain food additives - ipcs inchem

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ANNEX 5 633<br />

Secondary components Comments on secondary components<br />

JECFA No. Flavouring agent Minimum assay<br />

value (%)<br />

1811 Methyl trans-2-octenoate 90% 5–6% methyl trans-3-octenoate Methyl trans-3-octenoate is expected to share the<br />

same metabolic fate as the primary substance, i.e.<br />

hydrolysis to 3-octenoic acid and methanol, followed<br />

by complete metabolism in the fatty acid pathway or<br />

the tricarboxylic cycle. It does not present a safety<br />

concern at current estimated levels <strong>of</strong> intake <strong>of</strong> the<br />

flavouring agent.<br />

Aliphatic secondary alcohols, ketones and related esters<br />

1839 3-(Hydroxymethyl)-2-octanone 90% 7% 3-methylene-2-octanone 3-Methylene-2-octanone (No. 1149) was evaluated by<br />

the Committee at its fifty-ninth meeting (Annex 1,<br />

reference 160) and was concluded to be <strong>of</strong> no safety<br />

concern at current estimated levels <strong>of</strong> intake as<br />

flavouring agent.<br />

2,6,8-Trimethyl-6-hydroxy-4-nonanone, cis-2,6,8trimethyl-5-nonen-4-one<br />

and trans-2,6,8-trimethyl-<br />

5-nonen-4-one are expected to share the same<br />

metabolic fate as the primary substance, i.e. reduction<br />

<strong>of</strong> the ketone followed by glucuronic acid conjugation.<br />

They do not present a safety concern at current<br />

estimated levels <strong>of</strong> intake <strong>of</strong> the flavouring agent.<br />

1850 2,4-Dimethyl-4-nonanol 84% 6.6% 2,6,8-trimethyl-<br />

6-hydroxy-4-nonanone; 6.5%<br />

cis-2,6,8-trimethyl-5-nonen-<br />

4-one; 2.6% trans-2,6,8trimethyl-5-nonen-4-one<br />

Hydroxy- and alkoxy-substituted benzyl derivatives<br />

94% 2–3% vanillin An ADI <strong>of</strong> 0–10 mg/kg bw was established for vanillin<br />

by the Committee at its eleventh meeting (Annex,<br />

reference 14). At the fifty-seventh meeting <strong>of</strong> the<br />

Committee, when vanillin (No. 889) was evaluated<br />

using the Procedure, vanillin was concluded to be <strong>of</strong><br />

1879 Vanillin 3-(l-menthoxy)propane-1,2-diol<br />

acetal

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