Effects of rewetting on milling quality of wet season Japanese rice
1996
Supasark Limpiti | Viboon Changrue (Chiang Mai Univ., Chiang Mai (Thailand). Faculty of Agriculture. Dept. of Agronomy)
Study on rewetting of wet season Japanese rice after harvest was conducted at Faculty of Agriculture, Chiang Mai University. The rewetting process was simulated by spraying water at different amounts on the paddy which was mechanically dried to the pre-detemine moisture contents of 15-21 percent. The paddy was sprayed with water until its moisture increased 3 percent and 6 percent. The grain was kept for 12 hours before redried to 12-13 percent moisture level and milled. Results of the experiment showed that rewetting of 3 percent gave no milling quality difference from the unwetted crop both in terms of percent head rice and percent broken rice. But when the paddy was wetted until its moisture increment was 6 percent a significantly different head rice yield and broken rice percentage from the control were observed. Moreover, it was found that the paddy moisture content and the amount of water rewetted had interacted effects on milling quality of the Japanese rice. Nonetheless the rewetting effect of 3 and 6 percent on the rice in wet season was not serious ince the broken rice yield did not exceed 10 percent which was commercially acceptable.
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