bacterial precipitation
1.Themilled ansfiltered potatoliquidbeing mixedwith 20% naturalfermentative sourliquor of pea, precipitation time of starch grains in it shortened by 6 times, extraction rate of starch was raised by 31 1% within30 minutes, whitenessdegreeof starch wasimprovedby 16 5%, andproportion of inferior starch reduced by 10 9% Morever the bacterial cell was with high agglutinating activity, which was prepared from the culture starch agglutinating bacteria through reasonable method, may be applied to starch extraction of potato as a better biological agent
