干しシイタケ各種銘柄の脂肪酸組成およびエルゴステロール含量

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タイトル別名
  • Fatty Acid Compositions and Ergosterol Contents of Different Grades of Dried Shiitake Mushroom (Lentinns edodes Sing.)
  • ホシ シイタケ カクシュ メイガラ ノ シボウサン ソセイ オヨビ エルゴ ス

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抄録

The differences in total ergosterol contents and total fatty acid compositions of eight grades of dried Shiitake mushroom were investigated by gas-liquid chromatography. The results were obtained as follows: (1) Linoleic (71.3-80.7%) and palmitic (15.2-20.8%) acids were found to be predominant in samples, and oleic (1.8-3, 6%), stearic (0.6-1.4%), and myristic (0.2-0.7%) acids were also found in all the samples. There were no significant differences in the ratio of fatty acid compositions among the differentgrades of mushroom exeept Kuroko. (2) Total ergosterol contents were found in the ramge of 193-270mg% for dry weight. In order to show the distribution of ergosterol in two main parts of mushroom, their caps and stems were taken and their ergosterol contents were determined respectively. In the case of caps, ergosterol contents was 203-302mg%, while in the stems it was 137-158 mg%. The average value of ergosterol contents were 227mg% for the Donko type and 198mg% for the Koshin type.

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