食品科学 ›› 2003, Vol. 24 ›› Issue (1): 52-55.

• 基础研究 • 上一篇    下一篇

槟榔芋淀粉理化特性初探

 郭华, 周建平, 彭丽君   

  1. 湖南农业大学食品科技学院,湖南金健米业股份有限公司
  • 出版日期:2003-01-15 发布日期:2011-12-13

Research on Physical and Chemical Characteristics of Pinang-taro Starch

 GUO  Hua, ZHOU  Jian-Ping, PENG  Li-Jun   

  • Online:2003-01-15 Published:2011-12-13

摘要: 本文从槟榔芋淀粉颗粒大小,淀粉粘度与糊化温度,淀粉的沉降速度,淀粉酸水解速度,溶胀势,直链淀粉的含量等八个方面阐述了槟榔芋淀粉的理化性质。同时以小麦、百合、葛粉、红薯、绿豆、玉米等淀粉作对照进行比较,从而得到槟榔芋淀粉的一系列参数:即淀粉颗粒直径1~3μm,含0%~1%的直链淀粉。60℃开始糊化,为不透明糊,42℃时粘度值为1620mPa.s。在酸性条件下沉降较好,酸水解速度低于红薯淀粉。85℃下溶胀势为15.07,仅次于百合。相对密度为1.429,容重为649.5g/L。

关键词: 槟榔芋, 淀粉, 理化特性

Abstract: This paper reported the characterti cs of pinang -taro starch,on granula r sizes viscosity,gelation tem-perature sedimentation velocity,acid hydrolysis velocity,swelling potential,relative density,volume weight and percentage content of amylose.In co ntrast to starches of wheat,corn,lily,mung bean,sweet potato and kudzuving,it revealed a series of ph ysical and chemical characteritics of this starch.The diameter of the grain is1~3μmand0%~1%amylosecontent.Itbecam epasteat60℃andthepastewas nontra nsparent..Its viscosity at 42℃was 1620mPa.s.When it was under acid aqueous solution(pH =4),it would sediment better.Acid hydrolysis velocity was lower than t hatof sweetpotato.The swelling potential was 15.07at85℃,only lower th an lily.Otherwise,its relative density was 1.429g /cm 3 and volume weight649.5g /L.

Key words: Pinang -Taro, starch, physic and chemical, characters