Comparison of starches isolated from three different Trapa species
Comparison of starches isolated from three different Trapa species
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从三种不同菱属植物中分离的淀粉的比较
DOI：
10.1016/j.foodhyd.2013.11.001
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发表时间：
2014-06-01
影响因子：
10.7
通讯作者：
Wei, Cunxu
中科院分区：
文献类型：
--
作者：
Gao, Hongming;Cai, Jinwen;Wei, Cunxu
菱属（Trapaceae）是最常见的水生植物之一。为了充分利用菱资源，对两种栽培菱（Trapa quadraspinosa Roxb.）和菱（Trapa bispinosa Roxb.）菱属野生种（TrapapapseudoinisaNakai）为我国南方常见种。3种果实和种仁的形态、大小、重量、水分、淀粉和可溶性糖含量均存在显著差异。从籽粒中分离出的淀粉均为椭圆形，表面光滑，种脐居中。野生种的淀粉颗粒较大，直链淀粉含量较高。三种菱角的淀粉均呈C-A型结晶。t. pseudoinisa淀粉表现出最高的溶胀力和溶解度。三种菱属植物淀粉的热性质相似，但菱属植物淀粉的热性质不同。假丝酵母淀粉具有较高的起始温度和较低的终止温度。t.与其他两种淀粉相比，拟inisa淀粉显示出相似的崩解粘度和更高的消减粘度。猪胰腺α-淀粉酶的水解程度相似，观察到从三个物种分离的淀粉。然而，T.二棘参淀粉的水解度最高，T.盐酸和黑曲霉淀粉葡萄糖苷酶对拟青霉淀粉的水解度最低。(C)2013爱思唯尔有限公司保留所有权利。
Trapa (Trapaceae) is one of the most common aquatic plants. In order to make full use of the resource of Trapa, we investigated two Trapa cultivated species (Trapa quadrispinosa Roxb. and Trapa bispinosa Roxb.) and one Trapa wild species (Trapa pseudoinisa Nakai) popularly found in South China. The morphology, size, weight, and contents of water, starch and soluble sugar of fruit and kernel were significantly different among the three species. Starches isolated from their kernels were all oval in shape with smooth surface and central hilum. The starch granule size was larger and amylose content was higher in the wild species than in the two cultivated species. Starches from the three Trapa species all exhibited C-A-type crystalline. T. pseudoinisa starch showed the highest swelling power and solubility. Starches from the three Trapa species had similar thermal properties except that T. pseudoinisa starch had higher onset temperature and lower conclusion temperature. T. pseudoinisa starch showed similar breakdown viscosity and higher setback viscosity compared with starches from the other two species. Similar hydrolysis degree by porcine pancreatic a-amylase was observed in starches isolated from the three species. However, T. bispinosa starch showed the highest hydrolysis degree and T. pseudoinisa starch showed the lowest hydrolysis degree by HCl and Aspergillus niger amyloglucosidase. (C) 2013 Elsevier Ltd. All rights reserved.