Optimization of Triterpene Yield from Ganoderma atrum HBSD Z19 (Agaricomycetes) by Optimization of Medium Components and Evaluation of Bioactivity Under Simulated Gastrointestinal Digestion In Vitro.

The intracellular triterpene yield from Ganoderma atrum was enhanced by optimization based on single-factor experiments, Plackett-Burman experimental design (PBED) and response surface methodology (RSM) under liquid fermentation conditions. The optimal medium composition (g·L-1) was glucose (46.0), bean cake powder (30.

Optimisation of the production of a selenium-enriched polysaccharide from and its structure and antioxidant activity.

The fermentation medium of a newly identified was optimized by response surface methodology, with the optimal medium containing sucrose (80 g/L), yeast powder (60 g/L), KHPO (5 g/L), MgSO·7HO (1 g/L) and NaSeO (0. 1 g/L). Under these conditions, the extracellular polysaccharide yield was 8.