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International Journal of Medicinal Mushrooms
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ISSN Imprimer: 1521-9437
ISSN En ligne: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.2017021151
pages 641-651

Optimization of Submerged Cultivation Conditions for Production of Big Cup Culinary-Medicinal Mushroom Clitocybe maxima (Agaricomycetes) Biomass with Significant Antioxidative and Antihyperlipidemic Activities

Shu-Hui Hu
Department of Nutrition and Dietetics, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Medical Laboratory Science and Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan
Ker-Shew Chen
Department of Pharmacy, Tajen University, Pingtung, Taiwan
Ming-Yi Liu
Department of Dietetics, Tainan Sin-Lau Hospital, Tainan, Taiwan
Peter Chi Keung Cheung
Department of Biology, School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
Jinn-Chyi Wang
Department of Food Science and Technology, Tajen University, Pingtung, Taiwan
Sue-Joan Chang
Department of Life Science, National Cheng Kung University, Tainan, Taiwan, 701

RÉSUMÉ

In this study, a large Clitocybe maxima mycelium biomass was obtained by submerged cultivation under optimal conditions. Three test samples from lyophilized mycelia, including hot water extract (CW) and elutes from solvents with different polarity (CA and CB), were combined and used to explore antioxidant and antihyper-lipidemic activities in vitro and in vivo. The CA group showed the highest DPPH free radical scavenging activity and iron-reducing capability at concentrations of 6.0% and 3.0% (w/v), respectively. Further, the CA group showed the highest glutathione peroxidase and superoxide dismutase activities at a dose of 0.25 mg/kg body weight (CA-0.25 group) in all hyperlipidemic hamsters tested. Serum lipid levels (apart from high-density lipoprotein cholesterol levels) of hamsters in the CA-0.25 group were lower than those of hamsters in the negative control group in antihy-perlipidemic tests. Therefore, we believe that extracts from C. maxima mycelia are rich reservoirs of antioxidant and antihyperlipidemic activities.


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