Acceleration of <i>Hericium erinaceum</i> mycelial growth in submerged culture using yogurt whey as an alternative nitrogen source

Abstract

The effects of various carbon sources and their initial concentrations on mycelia production by <i>Hericium erinaceum</i> were investigated by determining the dry cell weight (DCW) and <i>β</i>-glucan content of mycelia in submerged culture. Glucose and xylose were superior carbon sources for promoting mycelial growth resulting in mycelial concentrations of 3.99 g/L and 4.01 g/L, respectively; glucose was the best carbon source in terms of productivity (0.44 g/L/day). Experiments were also performed using yogurt whey as an alternative nitrogen source for submerged cultivation of <i>H. erinaceum</i> mycelia, and DCW and <i>β</i>-glucan content were compared with those with chemical nutrient medium. When whey was used as a nitrogen source, DCW and total amount of <i>β</i>-glucan were 2.3- and 2.8-fold higher, respectively, than that with chemical nutrient medium. Thus, whey appears to be an alternative nitrogen source for promoting <i>H. erinaceum</i> mycelial growth

Dairy Wastewaters – General Characteristics and Treatment Possibilities – A Review

“…The best soluble COD utilisation was achieved at pH=4.6 and 27.1 °C, while the maximum mycelial yield of 0.35 mg per mg of soluble COD removed was obtained at pH=4.2 and 28.5 °C (78). Although there is information on edible fungal growth, dairy wastewater utilisation has not been studied from a COD point of view (79)(80)(81)(82).…”