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International Journal of Medicinal Mushrooms
IF: 1.423 5-Year IF: 1.525 SJR: 0.431 SNIP: 0.661 CiteScore™: 1.38

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

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushr.v10.i4.80
pages 351-360

Optimization of Submerged Cultivation Conditions for Extra- and Intracellular Polysaccharide Production by Medicinal Ling Zhi or Reishi Mushroom Ganoderma lucidum (W. Curt.: Fr.) P. Karst. (Aphyllophoromycetideae)

Jasmina Simonic
Institute of Botany, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
Mirjana Stajic
Institute of Botany and Botanical Garden "Jevremovac", Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
Jasmina Glamoclija
Institute of Biological Research, University of Belgrade, Despot Stefan Blvd. 142, 11000 Belgrade, Serbia
Jelena Vukojević
Institute of Botany and Botanical Garden "Jevremovac", Faculty of Biology, University of Belgrade, Takovska 43, 11000 Belgrade, Serbia
Sonja Duletic-Lausevic
Institute of Botany, Faculty of Biology, University of Belgrade, 11000 Belgrade, Serbia
Ilija Brceski
Faculty of Chemistry, University of Belgrade, Belgrade, Serbia

ABSTRACT

This study showed that cultivation conditions (medium composition, initial medium pH, aeration rate, inoculum density) affect biomass and polysaccharide production in Ganoderma lucidum strain HAI 447. The synthetic medium (pH 5.5) with maltose at the concentration of 65.0 g L−1, peptone of 0.2%, as well as in the presence of K, Na, and Mg at concentrations of 6.0, 3.0, and 2.0 mM, respectively, presented the best conditions for biomass (29.2 g L−1) and extra- and intracellular polysaccharide (2.9 mg mL−1 and 73.3 mg g−1, respectively) production in the analyzed strain. Constant aeration was optimal for biomass and extracellular polysaccharide production, whereas cultivation under stationary conditions was the best for intracellular polysaccharide production. A peak in biomass and polysaccharide production was observed at an inoculum density of 20.0 mL.


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