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Food additives data book - wordpres

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Antioxidants 104<br />

NAME: Tocopherols, mixed a (dl), g and d (synthetic)<br />

CATEGORY: Antioxidant/ Vitamin supplement<br />

FOOD USE: Infant foods/ Milk fat/ Mayonnaise/ Salad dressings/ Vegetable oils/ Processed meats/ Fresh and frozen<br />

sausages/ Snacks and nuts/ Dehydrated potatoes<br />

SYNONYMS: da-[2R,4¢R,8¢R]-2,5,7,8-tetramethyl-2-(4¢,8¢,12¢-trimethyl-tridecyl)-6-chromanol; 5,7,8-trimethyltocol<br />

E307/ g-7,8-dimethyltocol, E308/ d-8-methyltocol, E309/ Pristene ® 180, 184, 185, 186, 198/ Tenite ®<br />

FORMULA: a=C29H50O2; g =C28H48 O2; d =C27 H46O2<br />

MOLECULAR MASS: a=430.72; g =416.69; d =402.67<br />

ALTERNATIVE FORMS: Tocopheryl acetate<br />

PROPERTIES AND APPEARANCE: Yellow to brownish viscous oily liquid, odourless<br />

BOILING POINT IN °C AT VARIOUS a=210; g =200–210; d =150<br />

PRESSURES (INCLUDING 760 mm Hg):<br />

PURITY %: a-Tocopherol content is not less than 96% and not more than 102%<br />

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

in water: @ 20°C Insoluble<br />

in vegetable oil: Soluble<br />

in ethanol solution: Soluble<br />

FUNCTION IN FOODS: Functions as a free-radical terminator in autoxidation reactions, and is considered as an antioxidant. It<br />

supplies vitamin E as a nutrient to foods. Some plant foods, particularly vegetable oils, oilseeds and<br />

nuts, naturally contain tocopherols, but during processing they are partly destroyed<br />

ALTERNATIVES: Natural tocopherols<br />

TECHNOLOGY OF USE IN FOODS: Direct addition, spraying or dipping, can be used in frying oils

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