摘要
为了测定铁棍山药、陈集山药、南阳山药、佛手山药、淮山药和小白嘴山药中直链淀粉、支链淀粉的含量,对比品种差异,采用酸水解法测定淀粉的含量,紫外分光光度计法测定直链淀粉、支链淀粉含量,每种山药检测10根,取平均值。试验结果表明,鲜食山药直链淀粉、支链淀粉含量均较高,是淀粉含量较高的一类缠绕藤本植物,不同品种的山药淀粉含量、直链淀粉以及支链淀粉含量存在较大的差异,相同品种内的含量稳定性则较好,但不同品种的稳定性也存在一定的差异,可作为质量和品种鉴定的依据。
In order to determine amylose,amylopectin content of Tiegun yam,Chenji yam,Nanyang yam,Foshou yam,Huai yam and Xiaobaizui yam,and contrast variety difference,acid hydrolysis method was used to determine the content of starch,content of amylose and amylopectin was determined by UV spectrophotometer. Each yam was tested for 10 roots,and the average value was determined. Test results showed that fresh yam had higher amylose and amylopectin content,and it was a kind of twining vine with higher starch content. Starch content,amylose content and amylopectin content of different varieties of yam were different. Stability of the content in the same variety was better,but stability of different varieties also has some differences,which could be used as basis for quality identification and variety identification.
出处
《农业工程》
2017年第6期98-99,103,共3页
AGRICULTURAL ENGINEERING
