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    Preparation of przewalskinic acid A from salvianolic acid B using a crude enzyme from an Aspergillus oryzae strain

    Przewalskinic acid A is a rare, water-soluble, and highly biologically active ingredient found, thus far, only in the Salvia przewalskii Maxim herb; however, the content in S. przewalskii herb is very low. In ord...

    Chunying Liu, Yinghua **, Hongshan Yu in Journal of Industrial Microbiology & Biote… (2014)