Preparation of active substances e.g. polyphenol resveratrol, useful e.g. as additives for plant protective agents, comprises extracting the active substances from leafage and rhizome of Fallopia plant named igniscum

摘要

Preparation of active substances from a plant, comprises extracting/separating the active substances from the leafage and/or the rhizome of the new plant species from Fallopia named igniscum (CPVO2007/0149). An independent claim is included for raw materials or active substances, obtained from the leafage and/or the rhizome of the plant species igniscum (CPVO2007/0149).