Influence of Ganoderma lucidum strains and culture medium on fruit body formation and angiotensin I-converting enzyme inhibition

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  • KUMAKURA Kei
    MUSH-TEC Co., Ltd., Takasaki University of Health and Welfare:Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • IGARASHI Kiyohiko
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • EGUCHI Fumio
    Department of Health and Nutrition, Faculty of Health and Welfare, Takasaki University of Health and Welfare
  • SAMEJIMA Masahiro
    Graduate School of Agricultural and Life Sciences, The University of Tokyo

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  • マンネンタケ菌株と培地基材が子実体形成とアンギオテンシン変換酵素阻害活性に与える影響
  • マンネンタケ キンカブ ト バイチ キザイ ガ シジツタイ ケイセイ ト アンギオテンシン ヘンカン コウソ ソガイ カッセイ ニ アタエル エイキョウ

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Using four strains of Ganoderma lucidum, the influences of strain and basic culture material on fruit body formation and angiotensin I-converting enzyme (ACE) inhibition were investigated. For all four strains, mycelial growth rate on SMY-agar medium showed a good correlation with the length of cultivation until fruiting was initiated on wood meal-wheat bran medium. In addition, no obvious in-strain differences were found for mycelial growth rate and the timing of fruiting initiation between wood meals with regard to the basic culture materials obtained from Prunus mume and Quercus serrata. In contrast, inhibitory effects of extracts from fruit bodies on ACE activity varied significantly among the strains. In conclusion, screening for the optimal strain in medicinal uses of G. lucidum requires direct evaluation of the pharmacological activity of extracts in addition to indirect evaluation of the productivity of fruiting bodies. Moreover, the potential use of pruned branches of P. mume as the basic culture material was verified.

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