EFFECT OF ENVIRONMENTAL-TEMPERATURE DURING DEVELOPMENT OF RICE PLANTS ON SOME PROPERTIES OF ENDOSPERM STARCH
EFFECT OF ENVIRONMENTAL-TEMPERATURE DURING DEVELOPMENT OF RICE PLANTS ON SOME PROPERTIES OF ENDOSPERM STARCH
复制标题
DOI：
10.1002/star.19840360602
复制
发表时间：
1984-01-01
期刊：
影响因子：
--
通讯作者：
FUWA, H
中科院分区：
文献类型：
--
作者：
ASAOKA, M;OKUNO, K;FUWA, H
淀粉颗粒是从在受控温度条件下生长的水稻植物（O. sativa L.）的磨粒中分离出来的。通过柱上凝胶过滤检查异淀粉酶脱支淀粉材料的分布和支链淀粉的单位链长度。较高的环境温度降低了日本水稻品种胚乳淀粉中的直链淀粉浓度。胚乳淀粉中的直链淀粉浓度由抽穗后5-15天的环境温度决定。 有趣的是，较高的环境温度似乎增加了支链淀粉长B链的数量并减少了短链的数量。还通过 DSC [差示扫描量热法]、淀粉酶对淀粉颗粒的消化率和淀粉的 X 射线衍射图研究了环境温度对淀粉糊化特性的影响。
Starch granules were isolated from polished grains of rice plants (O. sativa L.) grown under controlled temperature conditions. Distribution of isoamylase-debranched starch materials and unit chain-length of amylopectin were examined by gel-filtration on columns. Higher environment temperature decreases amylose concentration in endosperm starches of Japanese rice cultivars. The amylose concentration in the endosperm starch is determined by the environment temperature 5-15 days after heading. Interestingly, the higher environment temperature seemed to increase the amount of long B chains and decrease that of short chains of amylopectin. The effect of environment temperature on pasting characteristics of starch by DSC [differential scanning calorimetry], starch-granule digestibility by amylases and X-ray diffractograms of starch was also investigated.