A process for the preparation of antioxidant conserve from...

A - Human Necessities – 23 – L

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A23L 3/3463 (2006.01) A23B 7/154 (2006.01) A23L 3/3472 (2006.01) A61K 47/22 (2006.01)

Patent

CA 2510300

The present invention relates to a simple process for the preparation of safe, environmental friendly, and natural antioxidant conserve of activity ranging between 80-85%, comprising oleoresin from Indian curry leaves (Murraya Koenigii Spreng.), said process-comprising steps of drying the washed curry leaves at temperature ranging between 30-800C, for time duration ranging between 2-10 hours, powdering the dried leaves into coarse powder form, extracting the powder with polar solvent preferably ketone with alkyl group, and obtaining antioxidant conserve comprising oleoresin from the extract by removing the solvent; also, use of antioxidant conserve at concentration ranging between ranging between 0.2 to 3.0%, comprising oleoresin from Indian curry leaves (Murraya Koenigii Spreng.) as an anti-oxidant in food and pharmaceutical substances and additives.

La présente invention concerne un procédé de préparation simple d'un conservateur antioxydant sûr, respectueux de l'environnement et naturel, ayant un taux d'activité compris entre 80-85 %, contenant une oléorésine provenant de feuilles de curry (Murraya Koenigii Spreng.). Ce procédé consiste à sécher les feuilles de curry lavées, à une température comprise entre 30 et 80 ·C, pendant un laps de temps compris entre 2 et 10 heures, à transformer les feuilles séchées en une poudre grossière, à soumettre la poudre à une extraction à l'aide d'un solvant polaire, de préférence une cétone avec un groupe alkyle, et à obtenir un conservateur antioxydant contenant une oléorésine à partir de l'extrait, en éliminant le solvant. L'invention concerne également l'utilisation du conservateur antioxydant contenant une oléorésine provenant de feuilles de curry (Murraya Koenigii Spreng.) à une concentration comprise entre 0,2 et 3,0 %, comme antioxydant dans des substances alimentaires et pharmaceutiques et des additifs.

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