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  • Title: Development of a large scale process for the conversion of polysialogangliosides to monosialotetrahexosylganglioside with a novel strain of Brevibacterium casei producing sialidase.
    Author: Peng YF, Wang XD, Wei DZ.
    Journal: Biotechnol Lett; 2007 Jun; 29(6):885-9. PubMed ID: 17415532.
    Abstract:
    A bioconversion process of producing GM1 (monosialotetrahexosylganglioside) on an industrial scale was developed with a novel sialidase-producing strain Brevibacterium casei. The sialidase hydrolyzed polysialogangliosides to produce GM1 but did not act on GM1. When Brevibacterium casei was cultured in a synthetic medium containing crude pig brain gangliosides (10% w/v) at 30 degrees C for 24 h in a 50 l fermenter, most of the polysialogangliosides were converted to GM1. The content of GM1 was increased from 9% in crude gangliosides to 45% with 70% (w/w) yield.
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