Synthesis and Antimicrobial Properties of Chitosan Nanoascorbate of Bombyx mori

Abstract— The nanoascorbate of chitosan of Bombyx mori is synthesized from low-molecular-weight chitosan (LMWC) using the suspension method. Its physicochemical and antimicrobial properties against Fusarium oxysporum, which causes diseases of mulberry trees, are studied. The resulting chitosan nanoascorbate based on LMWC has a higher inhibition zone compared to any other variants against the mulberry Fusarium oxysporum culture. It is found that when wheat seeds are treated with nanoascorbate chitosan at a component ratio of LMWC : AC = 4 : 1, the incidence of smut fungus decreases by 6.6 and 2.4% compared to the control and standards, respectively. The influence of a ratio of chitosan and ascorbic acid components on the formation of chitosan nanoascorbate is found. The structural properties of Bombyx mori nanoascorbate chitosan are studied with IR spectroscopy.