籾での黒点米および斑点米の簡易識別法

概要

論文の詳細を見る
It is very difficult to discriminate black-wedged and pecky rice grains from healthy unhulled ones. Detection of these infested grains is generally made in hulled rices. However, this method is time-consuming and laborious. In the present experiment, the author attempted to develop a simple and rapid discriminating method of these infested grains and found that when unhulled rice grains were soaked in water for 20〜24 hours, both of hte black-wedged and pecky grains could be easily distinguished in a semitransparent white plastic container placed on a light. The results of discrimination were dependent on the water temperature ; a high temperature more than 30℃ gave a poor result, but constant or varying temperatures in the range from 5°to 25℃ gave a satisfactory one. Acelerated water absorption of rice grains in a vacuum chamber may provide a prompt detection of infested grains when required.
日本応用動物昆虫学会の論文
1976-12-25