SORPTION PROPERTIES OF CHITINAND CHITOSAN-GLUCAN BIO-COMPLEXES ISOLATED FROM ASPERGILLUS NIGER FUNGAL MYCELIA BIOMASS
https://doi.org/10.21285/2227-2925-2017-7-2-64-71
Abstract
The work aims to study sorption properties of chitin-glucan (ChGC) and chitosan-glucan (CsGC) biopolymer complexes isolated from Aspergillus niger fungal mycelia biomass, a citric acid production waste. According to the obtained data, the sorption capacity of the diacetylated CsGC with primary amine groups is higher against Pb2+ and Сu2+ ions (130-140 mg/g) as compared with ChGC (50-80 mg/g). Langmuir and Freundlich equations govern adsorption isotherms with high correlation parameters (R2=0,998) and (Сu2+ - R2=0,98, Pb2+ - R2=0,95) correspondingly. X-ray structural analysis states the samples have a new phase of sorbed ions with functional groups. The study results show it is possible to obtain chitin-glucan and chitosan-glucan bio-complexes isolated from mycelia wastes with high sorption capacity and their application for copper, lead and other heavy metals ions removal has a great future.
About the Authors
L. V. Novinyuk
All-Russia Research Institute for Food Additives «VNIIPD»
Russian Federation
Russian Federation
P. Z. Velinzon
All-Russia Research Institute for Food Additives «VNIIPD»
Russian Federation
Russian Federation
D. Kh. Kulev
All-Russia Research Institute for Food Additives «VNIIPD»
Russian Federation
Russian Federation
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Review
For citations:
Novinyuk L.V., Velinzon P.Z., Kulev D.Kh. SORPTION PROPERTIES OF CHITINAND CHITOSAN-GLUCAN BIO-COMPLEXES ISOLATED FROM ASPERGILLUS NIGER FUNGAL MYCELIA BIOMASS. Proceedings of Universities. Applied Chemistry and Biotechnology. 2017;7(2):64-71. (In Russ.) https://doi.org/10.21285/2227-2925-2017-7-2-64-71
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