^(60)Coγ辐照对甘薯生料糖化的影响  

EFFECT OF ^(60)Coγ-IRRADIATION ON SACCHARIFICATION OF UNCOOKED SWEET POTATO MATERIAL

作　　者：胡婷春[1,2] 王克勤[3] 熊兴耀[1,2] 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：《核农学报》2010年第1期73-77,共5页Journal of Nuclear Agricultural Sciences

基　　金：国家科技支撑计划重大区域专项(2007BAD41B00)

摘　　要：以甘薯的淀粉及干粉为试验材料,研究60Coγ辐照对其外观形态及糖化效率的影响。试验结果表明: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。在50至1200 kGy辐照剂量范围内,甘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;湘薯86和湘薯541的糖化效率在低剂量辐照处理时有明显的差异,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,糖化效率达到最高。Using the starch and powder of sweet potato of Xiangshu 86 and Xiangshu 541 as materials,the effect of ^（60）Coγ-irradiation on the structure of starch particle and the efficiency of saccharification were studied.The result showed that some reticulate flaws appeared in the surface of irradiated starch particles,and the reticulate flaws were increased with the increase of irradiation dose.The content of reducing sugar and total soluble sugar in both starch and the powder were obviously increased along with the increase of irradiation dose ranged from 50 to 1200kGy.The saccharification efficiency of Xiangshu 86 and Xiangshu 541 was obviously difference at the dose lower than 500kGy,and then the efficiency showed the similar trends at higher dose irradiation,the saccharification rate reached the highest value after the treatment of 1200kGy irradiation.

关 键 词：辐照 甘薯 生料糖化 淀粉燃料乙醇 

分 类 号：S531[农业科学—作物学]