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Food additives data book - wordpres

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HEAVY METAL CONTENT MAXIMUM IN 10<br />

ppm:<br />

ARSENIC CONTENT MAXIMUM IN ppm: 2–3<br />

FUNCTION IN FOODS: Used as an acidulant in processed cheese. Used to clarify/acidity collagen in the production of gelatin/<br />

fats and oils. pH of 0.1 N aqueous solution = 1.5. Antioxidant and sequestrant in vegetable and animal<br />

fats; synergist with antioxidants<br />

ALTERNATIVES: Disodium phosphate; citric acid; L-tartaric acid<br />

TECHNOLOGY OF USE IN FOODS: <strong>Food</strong>-grade phosphoric acid is supplied at 75, 80 and 85% aqueous solutions.<br />

An acid containing about 88% H3PO4 will frequently crystallise on prolonged cooling.<br />

Store in suitable stainless steel containers. Do not mix with nitromethane as the mixture becomes<br />

explosive. Do not store in stainless steel containers in contact with chlorides, as forms H2 gas. Do not<br />

mix with sodium tetrahydroborate. Avoid excessive heat<br />

SYNERGISTS: Antioxidants/ Monoglyceride citrate, isopropyl citrate in fats and oils<br />

ANTAGONISTS: Chlorides/ strong alkalis/ metals, sulphides and sulphites<br />

FOOD SAFETY ISSUES: Concentrated solutions are irritating to skin and mucous membranes.<br />

LD50 = 3500–4400mg/kg<br />

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

FDA – GRAS in accordance with GMP. GMP<br />

Miscellaneous all-purpose additive. Used at 0.01% to increase effectiveness of<br />

CANADA:<br />

antioxidants in lard/shortening. 10.9 ppm total phosphorus in cheese;<br />

GMP<br />

2000–5000 ppm in jams and jellies<br />

Phosphoric acid 859

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