Refining of edible oil retaining maximum antioxidative potency

This invention relates to A process for refining edible crude oil, selected from the group of oil comprising sesame seed oil, ricebran oil, wheat germ oil, oat germ oil and coffee oil, tee seed oil, pine seed oil, rich in natural antioxidative potential; the process being dedicated to retaining a su...

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Bibliographische Detailangaben
Hauptverfasser:	SILKEBERG, ALF, KOCHHAR, PARKASH S
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES BAKERY PRODUCTS BAKING CANDLES CHEMISTRY CHEWING GUM COCOA COCOA PRODUCTS, e.g. CHOCOLATE CONFECTIONERY DETERGENTS EDIBLE DOUGHS EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKINGOILS ESSENTIAL OILS FATTY ACIDS THEREFROM FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES ICE-CREAM METALLURGY PERFUMES PREPARATION THEREOF PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PRESERVATION THEREOF PRODUCING (PRESSING, EXTRACTION), REFINING AND PRESERVINGFATS, FATTY SUBSTANCES (e.g. LANOLIN), FATTY OILS AND WAXES,INCLUDING EXTRACTION FROM WASTE MATERIALS SUBSTITUTES FOR COCOA OR COCOA PRODUCTS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BYADDITION OF MATERIALS
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Beschreibung
Zusammenfassung:	This invention relates to A process for refining edible crude oil, selected from the group of oil comprising sesame seed oil, ricebran oil, wheat germ oil, oat germ oil and coffee oil, tee seed oil, pine seed oil, rich in natural antioxidative potential; the process being dedicated to retaining a substantial amount of the original antioxidative potential in the refined oil, modifying the degumming, the neutralisation, the bleaching and the deodorisation refining steps, comprising (a) lower temperature than usual and the addition of 50-500 mg/kg citric acid solution in the degumming process and (b)eliminating or substantially minimising hot water washing in the neutralising process and (c) eliminating or substantially reducing the use of caustic or acid clay, which is replaced by amorphous silica gel with a moisture of at least 25 % and an average pore diameter of between 20 and 60 Angstroms in the bleaching process and (d) either replacing the deodorisation process by the use of inert gas or making a short deodorisation with substantially lower heat (120-150 DEG C instead of the usual 210-270 DEG C).