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Safety evaluation of certain food additives - ipcs inchem

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584 SUBSTANCES STRUCTURALLY RELATED TO MENTHOL (addendum)<br />

Table 1 (contd)<br />

Conclusion based on<br />

current intake<br />

Comments on<br />

predicted metabolism<br />

Flavouring agent No. CAS No. and structure Step A3d Does intake exceed the<br />

threshold for human intake?<br />

See note 3 No safety concern<br />

No<br />

Europe: ND<br />

USA: ND<br />

Japan: 0.03<br />

d-2,8-p-Menthadien-1-ol 1861 22771-44-4<br />

OH<br />

CAS, Chemical Abstracts Service; ND, no intake data reported.<br />

a Fourteen flavouring agents in this group were previously evaluated by the Committee (Annex 1, reference 137).<br />

b Step 1: Five <strong>of</strong> the flavouring agents (Nos 1852–1855 and 1860) were assigned to structural class I, and the remaining five flavouring agents<br />

(Nos 1856–1859 and 1861) were assigned to structural class II.<br />

c Step 2: All <strong>of</strong> the agents in this group are expected to be metabolized to innocuous products.<br />

d The thresholds for human intake for structural classes I and II are 1800 and 540 μg/day, respectively. All intake values are expressed in μg/day. The<br />

combined per capita intakes <strong>of</strong> the five flavouring agents with the highest volume with the common metabolite, menthol, in structural class I are<br />

1527 μg/day in Europe and 3513 μg/day in the USA.<br />

Notes:<br />

1. Anticipated to hydrolyse to their corresponding menthol derivative and carboxylic acid.<br />

2. Menthol is primarily conjugated with glucuronic acid and excreted in the urine.<br />

3. Anticipated to primarily conjugate with glucuronic acid and be excreted in the urine.<br />

4. Anticipated to be reduced to the corresponding alcohol, primarily conjugate with glucuronic acid and be excreted in the urine.

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