Use of Whey Permeate for Cultivating Ganoderma lucidum Mycelia

Observed and predicted mycelial growth rate of Ganoderma lucidum at different lactose concentrations at 25°C, pH 5.6. Bars represent the standard error of 5 replications: (●) observed mycelial growth rate; (—) model predictions. An equation suggested by Shi et al. (1999) was used to fit the radial extension rates of G. lucidum with different substrate concentrations.

Two- and three-dimensional contour plots of the quadratic model for the mycelial growth of Ganoderma lucidum with respect to temperature and pH within the design boundaries.

Residual plots of the quadratic model for radial extension rate. Each residual was calculated using equation [2].