METODO DE EXTRACCION DE 3-(3,4-DIHIDROXIFENIL)-L-ALANINA.

摘要

1377675 Extraction of L-dihydroxyphenylalanine MEDICA AB OY and SALON SOKERITEHDAS OY 19 July 1972 [30 Aug 1971] 33754/72 Heading C2C 3,4 - Dihydroxyphenylalanine is extracted from plants which contain it, e.g. the horse bean (vica fabia), by extracting the mashed whole vegitative matter with an aqueous solution containing sulphurous acid and a complexing agent for iron such as ethylenediaminetetraacetic acid.