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首页> 外文会议>Takasaki Symposium on Radiation Processing of Natural Polymers November 23 and 24, 2000, JAERI, Takasaki, Japan >5 Some features of irradiated chitosan and its biological effect
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5 Some features of irradiated chitosan and its biological effect

机译：5辐照壳聚糖的一些特征及其生物学效应

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摘要

Preparation of chitosan oligomer by radiation degradation was carried out on the gamma Co-60 source. The radiation degradation yield (G_d) of the chitosan was found to be of 1.03 The oligochitosan with 50 percent of dp>8 fraction was obtained by irradiating the 10 percent (w/v) chitosan solution in 5 percent acetic acid at 45 kGy for the chitosan having the initial viscometric average molecular weight, Mv chemical bounds 60,000. Irradiated chitosan showed higher antifungal effect than that of unirradiated one. Furthermore, the irradiated chitosan also showed the growth-promotion effect for plants.
机译：在γ-Co-60源上通过辐射降解制备壳聚糖低聚物。发现壳聚糖的辐射降解产量（G_d）为1.03。通过在45kGy下用10％（w / v）的壳聚糖溶液在5％的乙酸中辐照45kGy，得到dp> 8的50％的寡壳聚糖。具有初始粘度平均分子量的壳聚糖，Mv化学键为60,000。辐照的壳聚糖显示出比未辐照的壳聚糖更高的抗真菌作用。此外，辐照的壳聚糖还显示出对植物的生长促进作用。

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