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PRELIMINARY STUDY ON CHITOSAN ISOLATED FROM ABSIDIA COERULEA

Wei Guang\ Li Zhaolan (Department of Biology,Nanjing University,Nanjing,210093,PRC)  
This paper reported a simple method for the lab scale isolation of chitosan from hyphal walls of Absidia coerulea .After shaking culture for 72h,treating the mycelium two times with 5% sodium hydroxide and extracting 12h with 2% hydrochloric acid at 100℃,the nature chitosan showed a yield of 11.72% and the chitosan produced by deacylation showed 2.58% of the dry weight of mycelia.
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