微细化玉米淀粉粒中水的作用研究

Study on Water Behavior in Micronized Corn Starch Granules

以天然玉米淀粉为参照,研究了物理法粉碎的不同粒度微细化淀粉的含水量,吸湿性,水吸附能力以及表观密度,结果表明,微细化淀粉的含水量随粒度降低而下降,存放初期吸湿性强,至后期吸湿性与天然玉米淀粉趋于一致。微细化淀粉表观密度下降,并呈现出很强的水吸附能力。

Compared with the commerical natural corn starch, the water content, moisture absorption, water holding capacity （WHC） and apparent density of different granularity micronized starch prepared in the physical granulation were studied. It method showed that when the size reduced, the water content of micronized starch decreased. Micronized starch showed higher sorption property and WHC and lower apparent density than commerical natural corn starch.