著者

浮島 美之 秋元 宣子 成田 弘子 石川 雅章 藤井 貴野 木野 正彦 山脇 正樹 岡田 昌二

出版者

公益社団法人日本薬学会

雑誌

衛生化学 (ISSN:0013273X)

巻号頁・発行日

vol.35, no.5, pp.339-346, 1989-10-31

被引用文献数

1

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To identify the species of mushrooms mainly for the distinction of poisonous mushrooms from edible ones, thin layer isoelectric focusing analysis was applied on their water-soluble proteins. 1. The electrophoretic profiles were species-specific. The proteins extracted from the cap and stem in a species gave essentially identical profiles. 2. The profiles of cap proteins of 10 individuals of Akamomitake (Lactarius deliciosus) were indifferent, indicating that the intra-species variation of water-soluble proteins was little. 3. The heat treatment at higher than 60℃, for 10 min, of the water-soluble proteins of Dokutsurutake (Amanita virosa) caused temperature-dependent disappearance of protein bands, while not significant change up to 60℃. 4. The values of pI and relative peak height of isoelectro-focused water-soluble protein bands were numerically expressed. These numerical values were species-specific, indicating that mushroom species might be identified by analyzing the water-soluble proteins with a verification of the tables of these numerical values. 5. The present method was applied for the identification of poisonous Kusaurabenitake (Rhodophyllus rhodopolius) mixed in Urabenihoteishimeji (Rhodophyllus crassipes) which caused a food poisoning incident. The former mushroom was satisfactorily identified by this method.