A PROCESS FOR THE PREPARATION OF EXTRACT CONTAING 24 TO 33 ANTIOXIDANTS FROM DILLENIA INDICA

摘要

1. A process for the preparation of extract conting 24 to 33% antioxidants from Dillenia indica, which comprises: i) powdering the fruit rinds of Dillenia indica using mixer grinder to mesh size of 40-80, ii) extracting the above said material with hexane in a Soxhlet extractor at a temperature of 55-60 °C for a period of 6-10 h., iii) distilling the above said extract to recover up to 90% the solvent, iv) extracting the spent obtained from step (ii) with an alcoholic solvent in a Soxhlet extractor at a temperature of 55-60 °C for a period of 6-10 hrs., v) filtering the above said extract to obtain the particle free extract, vi) distilling the above said particle free extract at a temperature of 55 - 60 °C to recover about 90% solvent, vii) drying the above concentrated extract using vacuum oven at a temperature of 40-50 °C, at a pressure of 10-25 mm of mercury under vacuum to obtain .the extract conting 24 to 33% antioxidants