期刊论文

中文

中国农学通报

1000-6850

2011

27

30

60-64

国家科技支撑计划区域重大专项“薯类燃料乙醇及生物柴油转化关键技术研究与示范”（2007BAD41B00）；

本校为第一机构

为探明辐照对马铃薯粉的降解作用,采用不同剂量~(60)Co-γ射线对其进行处理。结果表明,马铃薯粉经50~400kGy剂量辐照处理后,颗粒形貌没有发生改变,但在冷水中的溶解度大大增加,其中经400kGy剂量辐照处理后,溶解度达61%。辐照的直接糖化效率随处理剂量的加大而增加,其中以400kGy剂量处理的最明显,糖化值（DE值）达5.1%。辐照处理的降解产物以麦芽糖和葡萄糖为主。试验证明~(60)Co-γ射线能有效降解马铃薯粉,并可产生可发酵性糖。

In order to investigate irradiation degradation,potato flour was treated with different doses of gamma ray.Results showed that the granule morphology of potato starch did not change under the doses of 50-400 kGy.However,the treatment of gamma irradiation caused increase in solubility of potato flour,among which 400 kGy increased the most to 61%.Gamma irradiation had the effect of dehydrolysating directly,the content of sugars increased with the dose of gamma ray,among which 400 kGy was the best,had DE value of 5.1%.Ion-chromatography analysis s...