センサシステム　マルチチャネル味覚センサを用いた米の味の識別

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タイトル別名
  • Discrimination of the Taste of Rice with a Multichannel Taste Sensor.
  • マルチチャネル ミカク センサ オ モチイタ コメ ノ アジ ノ シキベツ

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説明

The eating quality of rice is evaluated by six attributes such as appearance, flavor, stickiness, hardness, taste and overall judgement. Taste can be measured with a multichannel taste sensor which uses lipid membranes as the receptor part. The sensor responds to each food by changes in the electric potentials from eight kinds of lipid membranes. In this paper, we investigated the taste of rice with a multichannel taste sensor. Four kinds of foreign cultivated rites and six brands of domestic rices (Koshihikari, whose producing district differed from each other) were used as samples. Following results were obtained.<br>1) Each type of rice was distinguished by output patterns of eight electric potentials in the taste sensor.<br>2) Using principal component analysis applied to these data, rices were clearly classified into two groups of domestic and foreign ones, whereas rice produced in Australia was close to domestic rices.<br>3) Sensory evaluations of cooked rites were made, and the result, was found to correlate with outputs of the taste sensor.<br>4) Fresh rice was distinguished from rice, which was stored for one month in sunshine, using the taste sensor.

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