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Food additives data book - wordpres

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Preservatives 750<br />

LEGISLATION: USA: CANADA:<br />

FDA 21CFR 150.141, 150.161, 166.40, 166.110, 175.300, Permitted in selected foods<br />

184.1021, 184.1733, GRAS 0.1% max. in foods., EPA registered<br />

AUSTRALIA/PACIFIC RIM:<br />

UK and EUROPE: Japan: 0.2% max<br />

0.5% max<br />

REFERENCES: Davidson, P. M., and Branen, A. L. (1993) Antimicrobials in <strong>Food</strong>s, Second Edition. Marcel Dekker,<br />

New York, pp. 11–48.<br />

<strong>Food</strong> Chemicals Codex, Fourth Edition (1996) National Academy Press, Washington, DC.<br />

Merck Index, Twelfth Edition (1996) Merck & Co., Inc., Whitehouse Station, NJ.<br />

Ash, M., and Ash, I. (1995) <strong>Food</strong> Additives. Gower Publishing Co., Brookfield, VT.<br />

ANY OTHER RELEVANT INFORMATION: Effect of pH on the dissociation of benzoic acid:<br />

pH % Undissociated acid<br />

3 93.5<br />

4 59.3<br />

5 12.8<br />

6 1.44<br />

7 0.144<br />

pK 4.19<br />

Most berries contain appreciable amounts of benzoic acid (ca. 0.05%). It is excreted mainly as hippuric<br />

acid by most vertebrates, except fowl

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