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Kudrat K. Pirniyazov, Dilorom I. Asrakulova, Sayyora
Sh. Rashidova
Synthesis and antimicrobial properties
of chitosan nanoascorbate Bombyx Mori
Abstract
Abstract. This paper describes the synthesis of chitosan nanoascorbate Bombyx
mori based on low molecular weight chitosan (LMWC) by the suspension
method. Its physicochemical and antimicrobial properties against Fusarium
oxysporum, which causes diseases of mulberry trees, have been studied. The
resulting chitosan nanoascorbate based on low molecular weight chitosan has a
larger suppression zone compared to all variants against the culture of
Fusarium oxysporum mulberry and melon, which makes it possible to use it in
presowing seed treatment at a ratio of LMWC:AA components 4:1. It was found
that when wheat seeds were treated with chitosan nanoascorbate, the incidence
of smut fungus decreased by 6.6 and 2.4 % compared to the control and the
standard, respectively. The effect of the ratio of the components of chitosan
(CS) and ascorbic acid (AA) on the formation of chitosan nanoascorbate (CSNA)
was determined. IR spectroscopy established the structural characteristics of
chitosan nanoascorbate Bombyx mori.
Key words: chitosan nanoascorbate Bombyx mori, nanoparticles, antimicrobial
properties, degree of binding
Copyright (C) Chemistry Dept., Moscow State University, 2002
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