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International Journal of Medicinal Mushrooms
IF: 1.423 5-Year IF: 1.525 SJR: 0.433 SNIP: 0.661 CiteScore™: 1.38

ISSN Print: 1521-9437
ISSN Online: 1940-4344

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushr.v14.i5.100
pages 513-520

Production of Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum (W.Curt. :Fr.) P. Karst. (Higher Basidiomycetes), Biomass and Polysaccharides by Solid State Cultivation

Marin Berovic
Faculty of Chemistry and Chemical Engineering Department of Chemical and Biochemical Engineering University of Ljubljana Askerceva 5, 1001 Ljubljana, Slovenia
Jozica Habijanic
National Institute of Chemistry, Ljubljana, Slovenia ; Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
Bojana Boh
Faculty of Natural Sciences and Engineering, University of Ljubljana, Ljubljana, Slovenia
Branka Wraber
Institute of Microbiology and Immunology, Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
Vlatka Petravic-Tominac
Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, Croatia

ABSTRACT

Solid state cultivation of Ganoderma lucidum biomass, strain BFWS Gal 4, originally isolated from the Slovenian forest, was studied in a horizontal stirred tank reactor. Periodic mixing of N = 80 rpm, 2 min/day was used. Production of fungal polysaccharides and fungal biomass on solid substrate based on beech sawdust, olive oil, and mineral salts was studied. Optimal moisture of the solid matrix was in the range of 80% to 74%. When the moisture content dropped below 57%, the growth of the mycelium and polysaccharide production stopped, but it revived when wet air was applied in further processing. Final concentration of biomass was 0.68 mg/g of solid substrate, while proportions of extracellular and intracellular polysaccharides were 4.5 mg/g and 1.05 mg/g, respectively.


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