Process for producing l-arabinose, l-arabinose-containing...

C - Chemistry – Metallurgy – 12 – P

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C12P 19/14 (2006.01) A21D 2/18 (2006.01) A23G 9/32 (2006.01) A23G 9/52 (2006.01) A23L 1/09 (2006.01) A23L 1/10 (2006.01) A23L 1/105 (2006.01) A23L 1/16 (2006.01) A23L 1/236 (2006.01) A23L 1/30 (2006.01) A23L 1/307 (2006.01) A23L 1/308 (2006.01) A23L 2/02 (2006.01)

Patent

CA 2368571

Processes for conveniently and economically producing L-arabinose, enzyme-treated products containing L--arabinose, diet foods and diabetic foods containing L--arabinose with dietary fiber, and fruit or vegetable juices containing L-arabinose are provided. (1) A process for producing L-arabinose by treating a natural material containing arabinan, arabinoxylan or arabinogalactan with an enzyme having an activity of acting on natural substances containing arabinan, arabinoxylan or arabinogalactan and thus releasing L-arabinose to give L- arabinose, characterized in that the above-described natural substance is directly treated with the above- described enzyme without separating or extracting arabinan, arabinoxylan or arabinogalactan. (2) A process for producing a diet food and a diabetic food characterized by comprising treating a dietary fiber material originating in a natural substance containing arabinan, arabinoxylan or arabinogalactan with an enzyme which degrades arabinan, arabinoxylan or arabinogalactan to give an enzyme-treated product containing L-arabinose and dietary fiber, and adding the thus obtained enzyme-treated product to a food. (3) An L-arabinose-containing fruit or vegetable juice characterized by containing an L-arabinose-containing fraction obtained by treating a fruit or vegetable press cake containing arabinan, arabinoxylan or arabinogalactan with an enzyme, and a process for producing the same.

(1) L'invention se rapporte à un procédé de production de L-arabinose qui se caractérise en ce que l'on ne produit pas la L-arabinose par extraction d'arabinane, d'arabinoxylane ou d'arabinogalactane à partir de matières naturelles contenant de l'arabinane, de l'arabinoxylane ou de l'arabinogalactane, mais en traitant directement des matières naturelles contenant de l'arabinane, de l'arabinoxylane ou de l'arabinogalactane avec une enzyme ayant une activité consistant à agir sur ces substances pour libérer de la L-arabinose. (2) L'invention se rapporte également à un procédé de fabrication de produits alimentaires de régime et de produits alimentaires pour diabétiques qui se caractérise en ce que l'on traite des matières fibreuses alimentaires provenant de matières naturelles contenant de l'arabinane, de l'arabinoxylane ou de l'arabinogalactane avec une enzyme digérant l'arabinane, l'arabinoxylane ou l'arabinogalactane de manière à former un produit transformé par voie enzymatique contenant de la L-arabinose et des fibres alimentaires puis en ce que l'on ajoute ce produit transformé par voie enzymatique à des produits alimentaires. (3) L'invention se rapporte également à des jus de fruits ou de légumes contenant de la L-arabinose qui se caractérisent en ce qu'ils contiennent une fraction contenant de la L-arabinose et obtenue par traitement avec une enzyme d'un tourteau de pressage de fruits ou de légumes contenant de l'arabinane, de l'arabinoxylane ou de l'arabinogalactane. Enfin, l'invention se rapporte à un procédé de production de ces jus de fruits et de légumes.

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