Fruiting bodies of <i>Fistulina hepatica</i> lack ascorbic acid but contain ascorbic acid analogs (6-deoxyascorbate and erythroascorbate)

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  • KOSEKI Kyohei
    1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan
  • KOMATSU Gota
    2) Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan
  • OZAKI Yuma
    1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan
  • BITO Tomohiro
    1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan 2) Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan
  • YOSHIDA Shinichi
    3) Electronic and Organic Material Laboratory, Tottori Institute of Industrial Technology, 7-1-1 Wakabadai-minami, Tottori 689-1112, Japan
  • YABUTA Yukinori
    1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan 2) Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan
  • SHIMOMURA Norihiro
    1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan 2) Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan
  • WATANABE Fumio
    1) The United Graduate School of Agricultural Sciences, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan 2) Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho minami, Tottori 680-8553, Japan

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  • カンゾウタケ<i>Fistulina hepatica</i> 子実体はアスコルビン酸を含まず，6-デオキシアスコルビン酸とエリスロアスコルビン酸の両方が含まれている
  • Fruiting bodies of Fistulina hepatica lack ascorbic acid but contain ascorbic acid analogs (6-deoxyascorbate and erythroascorbate)

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Abstract

Edible mushrooms, especially Fistulina hepatica, contain substantial concentrations of l-ascorbate (vitamin C; AsA). In this study, we determined AsA in cultivated F. hepatica fruiting bodies using an official AsA assay method from the Standard Tables of Food Composition in Japan. Additionally, we used gas chromatography-mass spectrometry (GC-MS) to clarify whether the fruiting bodies of F. hepatica contain AsA that can function as a vitamin in humans. A considerable amount of AsA (approximately 406 mg/100 g dry weight) was detected in cultivated F. hepatica fruiting bodies using the official method from the Standard Tables of Food Composition in Japan. Additionally, while two fungus ascorbate analogs, 6-deoxyascorbate and erythroascorbate, were detected by GC-MS, AsA was absent.

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