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Food additives data book - wordpres

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

in water: @ 0°C 12.54 @ 40°C 28 @ 80°C 28.3<br />

FUNCTION IN FOODS: Antimicrobial preservative, antioxidant and bleach<br />

ALTERNATIVES: Combination of antimicrobial preservative, antioxidant and bleach<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: AUSTRALIA/PACIFIC RIM:<br />

FDA 21CFR § 172.615, 173.310, Japan: Approved (0.03–5g/kg max. residual as sulphur dioxide)<br />

177.1200, 182.3798, GRAS<br />

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

New York.<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 />

Sodium sulphite 775

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