Dihydrochalcone purification process

摘要

The present invention relates to an improved process for the preparation of an extract enriched in dihydrochalcones, and more specifically enriched in phlorizin, starting from a dry polyphenolic fraction originating from industrial apple processing. The invention also relates to a dihydrochal-cone extract obtainable by this process, and to a food or a nutraceutical product comprising a dihydrochalcone extract of the present invention.

主权项

1. A process for the preparation of an extract comprising dihydrochalcones and derivatives thereof, wherein said process comprises the steps of:
(a) extracting with a food grade solvent a dried polyphenol extract comprising dihydrochalcones and derivatives thereof obtained from apple pomace, (b) alkalinising the food grade solvent with extract from (a) to form a solution, (c) oxidizing the resulting solution from (b) to form a mixture, (d) filtering or centrifugating the mixture of (c) to form an extract, (e) optionally, evaporating the resulting extract of (d) to remove residual solvent, and/or solubilising the dried material thereof in water, and (f) drying the extract comprising dihydrochalcones and derivatives thereof.