細管式等速電気泳動法によるウメ果実および製品中のシアンイオン分析

概要

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Cyanide ion content in fruit of Prunus mume, its preparations, commercial apricot kernel and plum was successfully determined by isotachophoresis, without being disturbed by co-existing ions, which employs a hydrochloric acid- and ammediol-containing aqueous solution (pH 7.5) as a leading electrolyte and an aqueous β-alanine and barium hydroxide solution (pH 10.5) as a terminal electrolyte. The cyanide ion content values obtained were approximately the same as those determined by the pyridine-pyrazolone method according to JIS-K 0101. Thus, isotachophoresis was found to be superior to previous method in that it was performed in significantly shorter time with markedly higher accuracy. The results showed that the cyanide ion content was, in mesocarps and in seed of fallen fruit of P. mume about 3.5 times and 3.0 times that of green fruit respectively, zero in the mesocarps in pickled and smoked fruit and juice concentrate prepared from fruit of P. mume, and almost negligible in the seed of above preparations. However, specimens of apricot kernel tested contained varying amount of cyanide ion.
日本生薬学会の論文
1982-09-20