Process for removing chlorophyll colour impurities from...

A - Human Necessities – 23 – L

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A23L 1/277 (2006.01) C07C 51/42 (2006.01) C11B 3/00 (2006.01) C11B 3/04 (2006.01)

Patent

CA 2099039

A process for removing chlorophyll color impurities from vegetable oils, the process comprises: i) dispersing a source of phosphoric acid in vegetable oil to form a mixture having a moisture content of less than 0.1% by weight which mixture is maintained at a temperature in the range of 70°C to 160°C until a precipitate containing chlorophyll color impurities is formed; and ii) at any time thereafter during conventional oil processing up to and including the removal of bleaching clay from the oil, separating the precipitated material from the oil to remove the chlorophyll color impurities with the precipitated material.

rocédé pour l'élimination, dans des huiles végétales, des impuretés colorées de la chlorophylle. Les étapes du procédé sont les suivantes : i) dispersion d'une source d'acide phosphorique dans l'huile végétale pour donner un mélange dont la teneur en humidité est inférieure à 0,1% en poids, lequel mélange est maintenu à une température comprise entre 70 et 160 degrés C jusqu'à la formation d'un précipité contenant les impuretés colorées de la chlorophylle et ii) à tout moment par la suite au cours du traitement habituel de l'huile jusqu'à l'étape de l'élimination de l'huile de l'argile décolorante, y compris pendant cette dernière étape, la séparation de l'huile des matières précipitées pour l'élimination des impuretés colorées de la chlorophylle avec ces matières.

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