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()-(2 R,3S)-DIHIDROKUERSETIN, SUATU PRODUK BIOTRANSFORMASI (-)-EPIKATEKIN OLEH JAMUR ENDOFIT Diaporthe sp. E [(-)-(2R,3S)-Dihydroquercetin, a Biotransformation Product from (-)-Epicatechin by the Endophytic Fungus Diaporthe sp. E]

Andria Agusta

Abstract


The endophytic fungus Diaporthe sp.E show a unique ability to biotransform (-)-epicatechin into (-)-(2R,3R,4R)-leucocyanidin in a semisynthetic medium. Extension of the incubation time gave a major product (-)-(2R,35)-dihydroquercetin which was identified by spectroscopic methods.

Keywords


Camellia sinensis, jamur endofit, Diaporthe sp. E, biotransformasi. (-)-epikatekin, (-)-2R,3R,4R-leukosianidin, (-)-2R,3S- dihidrokuersetin.

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DOI: http://dx.doi.org/10.14203/beritabiologi.v9i4.2009

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