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