舞茸 D-フラクション (Maitake D-Fraction)

Niigata's maitake industry is anchored by indoor cultivation pioneers from the 1970s; D-fraction extraction methodology was developed in Japan.
Beta-1,6-glucan content typically 25-40% in standardised extracts; molecular weight 200-1,000 kDa.
Immune-support supplements, adjuvant nutraceuticals, premium functional-food drinks.
Standardised beta-1,6-glucan extract from maitake mushroom (Grifola frondosa), originally developed at the Kobe Pharmaceutical University in the 1980s. Niigata is the primary cultivation region (~70% of Japan's maitake by volume). The D-fraction is positioned in immune-support and adjuvant supplement contexts internationally; clinical literature exists for both dietary and oncology-adjuvant settings. Functional foods featuring D-fraction must clear country-specific regulatory pathways (FFC in Japan, NDI in US, etc.).
| Japon | FFC notifications exist; FOSHU not granted; food product status for dietary use |
|---|---|
| Union européenne | Novel Food consideration for non-pre-1997 EU history; verify EFSA register |
| États-Unis | DSHEA NDI notification path for supplements; GRAS for food |
| Chine | NMPA cosmetic NCI consideration if used in cosmetics |
Kyowa Hakko Bio Co., Ltd.
協和発酵バイオ株式会社
Leader mondial de la fermentation. GABA de qualité pharmaceutique. Ingrédients de marque Cognizin® Citicoline, Setria® Glutathione et EYEMUSE®.
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Oryza Oil & Fat Chemical Co., Ltd.
オリザ油化株式会社
Pionnier des ingrédients fonctionnels issus du son de riz depuis plus de 70 ans. Produit plus de 300 extraits d'origine végétale. Son produit phare Oryza Ceramide® est le seul glucosylcéramide de qualité alimentaire approuvé par le Ministère de la Santé au Japon.
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