บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Prediction of kernel and bulk volume of wheat and canola during adsorption and desorption.

Sokhansanj, S.; Lang, W.;

Journal of Agricultural Engineering Research Year: 1996 Vol: 63 Issue: 2 Pages: 129-136 Ref: 17 ref.

1996

บทคัดย่อ

Prediction of kernel and bulk volume of wheat and canola during adsorption and desorption.

Several theoretical volume shrinkage models have been developed to account for grain shrinkage during postharvest processing. In this study, changes in kernel mass and volume of wheat cv. Kenyon and canola [rape] cv. Tobin were measured experimentally when exposed to humid (90% RH) or dry (15% RH) environments at 40 deg C. Equations were developed to predict changes in the kernel and bulk volumes of grain resulting from moisture adsorption or desorption. The changes in kernel and bulk density of canola were small compared with those measured in wheat during the adsorption/desorption cycle. In an almost linear increase, the bulk density of wheat decreased from 790 to 686 kg/m3 when kernel moisture content increased from 8 to 22% w.b. The bulk density of canola decreased by only 11 kg/m3, from 672 to 661 kg/m3 due to a moisture increase from 5 to 19% w.b. The laws of mixtures were used to develop equations to predict grain kernel and grain bulk volume, respectively, as functions of moisture adsorp

tion or desorption.