A thermophilic glucoamylase fromCephalosporium eichhorniae

descriptionPublicationkeyboard_double_arrow_right Article 01 May 1978 English Publisher:Springer Science and Business Media LLCJournal:Current Microbiology, volume 1, pages 181-184 (issn: 0343-8651, eissn: 1432-0991,

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Authors: D F, Day;

doi: 10.1007/bf02601674

pmid: 23338146

A thermophilic glucoamylase fromCephalosporium eichhorniae

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Abstract

A novel exocellular glucoamylase produced by a thermophilic fungus,Cephalosporium eichhorniae, was purified by a combination of membrane filtration and Sephadex chromatography. The enzyme was a glycoprotein, 28% carbohydrate by weight. It was composed of a single polypeptide chain with a molecular weight of 26,850. The enzyme was thermostable with optimum activity between 45 and 62°C. It had a substrate preference of amylose>amylopectin. Analysis by thin-layer and gas-liquid chromatography showed the major hydrolytic product of starch was glucose, classifying this enzyme as a thermophilic glucoamylase.

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University of Guelph
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