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Food additives data book - wordpres

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SOLUBILITY % AT VARIOUS TEMPERATURE/pH COMBINATIONS:<br />

in water: @ 10°C 0.025 @ 20°C 0.05 @ 80°C 0.30<br />

in vegetable oil: @ 25°C 1.4 (peanut); 5.2 (olive)<br />

in ethanol solution: @ 10% 0.1 @ 50% 18 @ 100% 95<br />

in propylene glycol: @ 25°C aqueous solution: 10% 0.06 50% 0.9 100% 26.0<br />

FUNCTION IN FOODS: Antimicrobial preservative – especially effective against bacteria and fungi at around neutral pH<br />

TECHNOLOGY OF USE IN FOODS: pH optimum is 3–8. Parabens are often used as blends, e.g. methyl and propyl at a ratio of 2–3 to 1.<br />

Dissolve initially in water, ethanol, propylene glycol or the food itself. Hot water is recommended.<br />

Parabens can also be dry-blended with other dry ingredients<br />

LEGISLATION: USA: UK and EUROPE: CANADA:<br />

FDA 21 CFR § 150.141, 150.161, UK: approved; EU: listed Permitted in certain foods<br />

172.515, 181.22, 181.23, 184.1670<br />

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

New York.<br />

Propyl-4-hydroxybenzoate 765

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