^(60)Coγ辐照对马铃薯生料糖化的影响  

Effects of ^(60)Coγ irradiation on saccharification of uncooked potato material

作　　者：胡婷春[1,2] 熊兴耀[1,2] 王克勤[3] 苏小军[2] 邹剑锋[2] 易锦琼[1,2] 

机构地区：[1]湖南农业大学园艺园林学院,湖南长沙410128 [2]湖南省作物种质创新与资源利用重点实验室,湖南长沙410128 [3]湖南省原子能农业应用研究所,湖南长沙410125

出　　处：《湖南农业大学学报（自然科学版）》2010年第1期45-49,共5页Journal of Hunan Agricultural University(Natural Sciences)

基　　金：国家科技支撑计划重大区域专项(2007BAD41B00)

摘　　要：以马铃薯的淀粉和干粉为试验材料,研究60Coγ辐照对其颗粒形态及糖化效率的影响.结果表明,经60Coγ辐照处理后,淀粉粒表面出现网状裂纹,且随着辐照剂量的增大,裂纹明显增多.辐照剂量为50～1200kGy时,马铃薯淀粉和干粉中还原糖和可溶性总糖的含量都随着辐照剂量的增加而显著提高;大西洋和湘马铃薯1号的糖化效率在低剂量辐照处理时有明显差异,但随着辐照剂量的增高,表现出相似的变化趋势,当辐照剂量为1200kGy时,糖化效率均达到最高.Using starch and powder of potato as materials, effects of^60Coγ irradiation on appearance of starch and the efficiency of saccharification were researched. The results showed that some reticulate flaws emerged in the surface of the starch irradiated by ^60Coγ. With the irradiation dosage increased, the reticulate flaws increased. The content of reducing sugar and total soluble sugar in both starch and powder obviously increased along with the increase of irradiation dosage ranged from 50 to 1 200 kGy. The saccharification efficiency of Atlantic and Hunan Potato No.1 had obvious differences when treated by low dose irradiation. But the efficiency performed the similar trends along with the increase of irradiation dose. Furthermore, the saccharification efficiency reached the highest value after the treatment with 1 200 kGy irradiation.

关 键 词：辐照 马铃薯 生料糖化 燃料乙醇 

分 类 号：S632.9[农业科学—蔬菜学] TK6[农业科学—园艺学]