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Lett Appl Microbiol. 2002;35(1):17-21.

Fungal chitosan production and its characterization.

Author information

1
Department of Microbiology, King Mongkut's University of Technology Thonburi, Bangkok, Thailand.

Abstract

AIMS:

The objective of this investigation was to evaluate the chitosans produced by several species of fungi.

METHODS AND RESULTS:

Representatives of four species of filamentous fungi, Aspergillus niger, Rhizopus oryzae, Lentinus edodes and Pleurotus sajo-caju, and two yeast strains, Zygosaccharomyces rouxii TISTR5058 and Candida albicans TISTR5239, were investigated for their ability to produce chitosan in complex media. Fungal chitosan was produced at 10-140 mg g-1 cell dry weight, had a degree of deacetylation of 84-90% and a molecular weight of 2.7 x 104-1.9 x 105 Da with a viscosity of 3.1-6.2 centipoises (cP).

CONCLUSIONS:

Rhizopus oryzae TISTR3189 was found to be the producer of the highest amounts of chitosan.

SIGNIFICANCE AND IMPACT OF THE STUDY:

Commercial chitosan could be obtained from Rhizopus mycelia and would have potential applications for medical and agricultural uses.

PMID:
12081543
[Indexed for MEDLINE]
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