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KMID : 0378019760190020221
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New Medical Journal
1976 Volume.19 No. 2 p.221 ~ p.227
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A Study of Some Undetermined Amino Acids in Edible Mushrooms
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Abstract
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This study was carried out in order to identify the amount of amino acid fractions of ?-amino butylic acid allo-isoleucine mono ethanolamine ?-amino butylic acid and ornithine and its localization on chromatogram.
The following conclusions were drawn by analyzing the extracts and the hydrolysates from 11 different mushrooms which are commonly consumed as foodstuff. 1) The ?-aminobutylic acid was identified on the chromatogram between peaks of alanine & valine, allo-isoleucine between peaks of methionine and isolencine, monoethanolamine followed by ?-aminobutylic acid between peaks of phenylalanine and ammonia, and ornithine between the peaks of ammonia and lysine. 2) Ornithine was the highest of its content in the mushroom extracts, and allo-isoleucine, ethanolamine, and ?-aminobutylic acid came next in decreasing order. Auricularia auricula-judae was not contained in either one of ?-aminobutylic acid, allo-isoleucine, ethanolamine, ?-aminobutylic acid, and ornithine. Ornithine, however, was contained with high concentration in the hydrolysates of the 11 mushrooms and ?-aminobutylic acid ?-aminobutylic acid, allo-isoleucine, and ?-aminobutylic acid in the decreasing order. 3) Total amount of ?-aminobutylic acid, allo-isoleucine, ethanolamine, ?-aminobutylic acid, and ornithine in the extracts was high in the extracts of Agaricus campestris Fr., pholiota nameko, Agaricus campestris, Gyrophora esculenta and Coprinus comatus, and in the hydrolysates of Coprinus comatus, Lentinus edodes, Agaricus campestris, Agaricus campestris Fr, and Tricholoma matsutake in order, respectively.
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