Sporulation of Metarhizium anisopliae in solid-state fermentation with forced aeration

Solid state fermentation of waste bread pieces by Aspergillus awamori: Analysing the effects of airflow rate on enzyme production in packed bed bioreactors

“…Forced aeration can be used to dissipate the generated metabolic heat to air, if vaporization is promoted using dry air (Dorta and Arcas, 1998;Sangsurasak and Mitchell, 1998). However, dry air could eventually desiccate the solid substrate and could stop all metabolic activity.…”

“…Others also studied the effects of aeration and the evaporative effect during solid state fermentations (Chen et al, 2014;Pirota et al, 2013;Torrado et al, 2013). It has been reported that forced aeration could decrease moisture content of the fermented matter bellow the critical level, which could stop microbial growth Page 13 of 45 A c c e p t e d M a n u s c r i p t 13 and activity (Dorta and Arcas, 1998). Banos and co-worker reported in their study on lovastatin production by Aspergillus terreus under solid state fermentation on a polyurethane foam that "there was a direct relationship between culture growth and aeration rate, whereas moisture content and aeration rate were inversely related" (Banos et al, 2009).…”

Effect of aeration and substrate moisture content on sporulation of Metarhizium anisopliae var. acridum

“…Of these of particular interest is a series of articles [10][11][12] investigating growth and sporulation of various M. anisopliae strains in SS culture on by-products of rice processing. Effect of parameters such as solid medium composition, water activity, packing density and thermal gradient as a result of its increase were studied.…”

Structural properties of beds packed with agro-industrial solid by-products applicable for solid-state fermentation: Experimental data and effects on process performance

“…Bulk density (q bulk ) affects SSF yields, especially due to microbial growth. Dorta and Arcas [15] studied the effect of packing density on spores yield of Metarhizium anisopliae cultivated in a mixture of rice bran and rice husk, and observed that for low q bulk (from 0.270 to 0.357 g/cm 3 ), no significant differences took place on both the total biomass production and the spore yield. However, a significant reduction on the total accumulated biomass was observed when q bulk was increased up to 0.496 g/cm 3 .…”