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Fungal chitosan production and its characterization
Author(s) -
Pochanavanich P.,
Suntornsuk W.
Publication year - 2002
Publication title -
letters in applied microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.698
H-Index - 110
eISSN - 1472-765X
pISSN - 0266-8254
DOI - 10.1046/j.1472-765x.2002.01118.x
Subject(s) - rhizopus oryzae , chitosan , lentinus , rhizopus , food science , mycelium , aspergillus niger , pleurotus , aspergillus oryzae , yeast , candida albicans , biology , aspergillus fumigatus , microbiology and biotechnology , chemistry , botany , biochemistry , fermentation , mushroom
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 edodesandPleurotus sajo‐caju, and two yeast strains,Zygosaccharomyces rouxiiTISTR5058 andCandida albicansTISTR5239, were investigated for their ability to produce chitosan in complex media. Fungal chitosan was produced at 10–140 mg g–1cell dry weight, had a degree of deacetylation of 84–90% and a molecular weight of 2·7 × 104–1·9 × 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 fromRhizopus mycelia and would have potential applications for medical and agricultural uses.