Studies on wet polishing characteristic of rice

습식연미 도정특성에 관한 연구

Series of study were conducted to investigated the condition of wet polishing and quality of wet polished rice. The optimal condition for wet polishing was determined to be 0.5% added water after removal bran layer of 95% by normal milling. Its polishing yield was 0.75% lower than normal polishing, and the moisture content of wet and normal polished rice was the same, but the whiteness of wet polished rice was higher by 3.5% than that of normal polished rice and the lightness was very good. The total solid as washing wet polished rice in water and the total solid in residual liquid of cooked wet polished rice was about 0.30 and 2% lower than those of normal polished rice, respectively. The storability of wet polished rice was better than that of normal polished rice.

습식연미 도정조건 및 습식연미 도정쌀의 특성을 구명하기 위하여 일반도정시 강층 제거량별 및 가습량별로 습식연미 도정시험을 실시하였던 바 도정 적정 습식연미 도정조건은 일반도정으로 강층을 95% 제거한 후 5% 가습 연미하는 것이 가장 좋았다. 그리고 습식연미 도정쌀이 일반도정쌀 보다 현백률은 0.75% 낮았으며, 수분함량은 같았으나 백도는 3.5%나 높았고, 윤기가 매우 좋았다. 그리고 쌀을 수세하여 용출된 고형물 및 취반용액 중 용출고형물은 각각 0.30 및 2%, 정도 낮았다. 또한 습식연미 도정쌀의 저장성도 일반도정쌀 보다 좋았다.