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Inhibitory effects of chitosan on superoxide anion radicals and lipid free radicals |
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| Authors: | |
| Institution: | (1) The Key Laboratory of Molecular Engineering of Polymers of Ministry of Education, China, Department of Macromolecular Science, Fudan University, 200433 Shanghai, China;(2) Center of Analysis and Measurement, Fudan University, 200433 Shanghai, China |
| Abstract: | With the electron spin resonance (ESR) technique, the inhibitory effects of chitosan on superoxide anion radicals and linoleic acid lipid radicals were found. The inhibitory ratio E for these two kinds of radicals is in proportion to the concentration of chitosan. It was also observed that E for linoleic acid lipid radicals increased with the increase of the degree of deacetylation and decreased with the increase of the molecular weight of chitosan. |
| Keywords: | chitosan antioxidant oxygen free radical lipid free radical linoleic acid |
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