Physicochemical properties of starches from purple and orange fleshed sweet potato roots at two levels of fertilizer
Physicochemical properties of starches from purple and orange fleshed sweet potato roots at two levels of fertilizer
复制标题
DOI：
10.1002/star.19960481103
复制
发表时间：
1996-11-01
期刊：
影响因子：
2.3
通讯作者：
Mochida, H
中科院分区：
文献类型：
--
作者：
Noda, T;Takahata, Y;Mochida, H
以紫色甘薯（绫村崎和九州109号）和橙子甘薯（九州120号和九州122号）为材料，在两种氮磷钾（NPK）施肥水平下，对甘薯块根进行淀粉提取。对分离淀粉的理化性质进行了比较。淀粉特性，即平均颗粒大小，直链淀粉含量，磷含量，消化率由葡萄糖淀粉酶，X-射线衍射图谱，支链淀粉链分布，并通过快速粘度分析仪和差示扫描量热法糊化特性，观察这些品种之间的差异。高氮磷钾对淀粉特性影响不大。因此，这表明，在甘薯根的情况下，改变淀粉特性的一个关键因素是品种的差异，而不是施肥水平。
Starch was extracted from purple (Ayamurasaki and Kyushu No. 109) and orange (Kyushu No. 120 and Kyushu No. 122) fleshed sweet potato roots at two levels of NPK-fertilizer. The physicochemical properties of the isolated starches were compared. Differences in the starch properties, namely average granule size, amylose content, phosphorus content, digestibility by glucoamylase, X-ray diffraction pattern, amylopecin chain distributions, and gelatinization properties by rapid visco analyzer and differential scanning calorimetry, were observed among these cultivars. On the other hand, higher application of NPK-fertilizer had little impact on the starch properties. Thus, it was demonstrated that a key factor in altering starch characteristics in the case of sweet potato roots was the difference in cultivars, not the level of fertilizer.