process for the production of optically pure (-) - (s) - 6.4 - dihydroksyflawanonu

摘要

process for the production of optically pure (-) - (s) - 6.4 - dihydroksyflawanonu, model 2, is that the prepared medium introduces strain aspergillus niger mb and at the time of the final phase of logarithmic growth, the fungus, the following 6 - butyryloksyflawanon in quantities of 10 mg per 100 ml of the medium.the transformation process is water culture microbial strain in continuous wstrzu0105saniu, as a result, with the participation of the enzyme system strain, followed by hydrolysis, binding estrowego in item 6, followed by hydroxylation in position 4 'substrate 6 - butyryloksyflawa nonu.the resulting product is extracted with an organic solvent niemieszaju0105cym with water and purifies chromatograficznie.