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Food additives data book - wordpres

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

in water: @ 20°C 11<br />

in ethanol solution: @ 100% 25<br />

FUNCTION IN FOODS: Bleaching agent, antimicrobial preservative, dough modifier<br />

ALTERNATIVES: Multifunctional – so need a blend of <strong>additives</strong> to provide each of the functions<br />

TECHNOLOGY OF USE IN FOODS: Multifunctional – an antimicrobial preservative, an antioxidant and a bleaching agent<br />

ANTAGONISTS: Sulphur dioxide is very reactive and binds to many substances in foods including oxygen, aldehydes,<br />

some ketones, sugars, carbonyls, thiamin, nucleotides, colours, anthocyanins<br />

FOOD SAFETY ISSUES: Normal humans are reasonably tolerant to ingested sulphites, but some individuals are hypersensitive<br />

and may be subject to asthma attacks and even life-threatening anaphylaxis<br />

LEGISLATION: USA: CANADA:<br />

FDA 21CFR 182.3862, GRAS: Permitted in specified foods<br />

BATF 27CFR 240.1051<br />

AUSTRALIA/PACIFIC RIM:<br />

UK and EUROPE: Japan: approved 0.03–5g/kg<br />

Permitted in specified foods<br />

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

New York., pp. 137–190.<br />

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

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

Sulphur dioxide 773

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