| 机械活化木薯淀粉及其乙酰化淀粉的消化性能研究 |
| |
| 引用本文： | 陈渊,李家贵,黄祖强,何绍帆,韦慧芳.机械活化木薯淀粉及其乙酰化淀粉的消化性能研究[J].食品科学,2010,31(7):61-66. |
| |
| 作者姓名： | 陈渊 李家贵 黄祖强 何绍帆 韦慧芳 |
| |
| 作者单位： | 1.玉林师范学院化学与生物系 2.广西大学化学化工学院 |
| |
| 基金项目： | 广西自然科学基金项目(0640006); 广西教育厅科研项目(200708LX139); 玉林师范学院重点科研项目(2009YJZB02) |
| |
| 摘 要： | 采用In-Vitro 消化模型和美国谷物化学协会(AACC)的76-13 标准方法，以消化速度和抗酶解淀粉含量为评价指标，研究机械活化淀粉及其乙酰化变性处理产品的消化性能和抗酶解性能。结果表明，机械活化对木薯淀粉颗粒的消化性能有显著的强化作用，活化时间越长，消化速率越大，抗酶解淀粉的含量越低。主要原因是机械活化使木薯淀粉紧密的颗粒表面及晶体结构受到破坏，结晶度下降，提高了淀粉颗粒对酶的敏感性，增加反应活性。活化淀粉经乙酰化变性可加快其颗粒的消化性能，降低其糊的消化性能，破坏和阻止抗酶解淀粉的形成，并随取代度提高，淀粉颗粒和糊的消化速度呈下降趋势，抗酶解淀粉含量降低。
|
| 关 键 词： | 木薯淀粉 机械活化 乙酰化 消化性能 抗酶解淀粉 |
| 收稿时间： | 2009-08-03 |
Digestibility of Mechanical Activated Cassava Starch and Acetylated Starch |
| |
| CHEN Yuan,LI Jia-gui,HUANG Zu-qiang,HE Shao-fan,WEI Hui-fang.Digestibility of Mechanical Activated Cassava Starch and Acetylated Starch[J].Food Science,2010,31(7):61-66. |
| |
| Authors: | CHEN Yuan LI Jia-gui HUANG Zu-qiang HE Shao-fan WEI Hui-fang |
| |
| Affiliation: | 1. Department of Chemistry and Biology, Yulin Normal University, Yulin 537000, China；2. School of Chemistry and Chemical
Engineering, Guangxi University, Nanning 530004, China |
| |
| Abstract: | In-Vitro model and 76-13 standard method of the American Association of Cereal Chemistry(AACC) were used to evaluate the digestibility and enzymatic resistance of mechanical activated cassava starch and its acetylated starch.Results indicated that mechanical activation significantly improved the digestibility of cassava starch granules.Meanwhile,longer activation time could result in enhanced digestion rate and less enzymatic resistance starch.The major reason was due to the damage of crystal structure and ... |
| |
| Keywords: | cassava starch mechanical activation acetylation digestibility enzymatic resistance starch |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《食品科学》浏览原始摘要信息 |
|
点击此处可从《食品科学》下载全文 |
