菠萝蜜种子淀粉消化特性与糊性质的研究

以菠萝蜜种子为原料提取淀粉,研究淀粉的消化特性以及糊性质。结果表明:菠萝蜜种子淀粉具有较低的消化性,抗酶解能力强;通过扫描电镜观察,发现α-淀粉酶作用不同的淀粉,其酶解方式不同,对菠萝蜜种子淀粉是通过淀粉表面进行侵蚀的作用方式酶解,而对于玉米淀粉则通过淀粉颗粒通道酶解颗粒内部;淀粉糊属于假塑性流体,其抗剪切能力比玉米淀粉,木薯淀粉强,其凝沉性比玉米淀粉小,比木薯淀粉大。

Jackfruit Seeds Starch Digestibility and Its Dextrin Properties

Properties of starch isolated from Jackfruit Seeds were investigated, including digestibility and dextrin properties. Results showed that Jackfruit seeds starch(JSS) had lower digestibility than corn starch, and strong enzyme-resistant capability; it was observed by SEM that the way of enzymatic hydrolysis of α-amylase was varied by the different type of the starch reacted with. The dextrin of JSS was a pseudo-plastic fluid. The shear resistance was stronger than maize and cassava. while the retrodegradation capacity was weaker than maize but stronger than cassava.