Addition of molasses, corn steep liquor, and rice polish as economical sources to enhance the fungal biomass production of wheat straw by Arachniotus sp.

Abstract

This study was planned to see the additive effects of various industrial residues including molasses, rice polish, and corn steep liquor for the bioprocessing of wheat straw (WS) through solid-state fermentation (SSF) using Arachniotus sp. as a fermenting agent. The performance of fungal-based WS (seed culture) was evaluated in terms of the favorable changes in crude protein (CP) contents. WS (5 g) was mixed with our selected carbon and nitrogen sources in a basal medium containing optimized salt concentrations to attain the desired level of water and nutrients. An increased (P < 0.0001) CP value was observed at a 25:1 C:N ratio and maximum fungal protein contents (13.40%) were found by mixing 0.4 mL of molasses, 0.8 g of rice polish, and 3.0 mL of corn steep liquor in treated WS at a setting time of 48 h in SSF. It was seen that the growth rate of Arachniotus sp. was greatly improved by the addition of our selected amounts of carbohydrate and nitrogen sources. Hence, our current results support the use of these economical byproducts for cheap biomass production.

Growth Measurments of Male Goat Kids Nourished on Unconventional Rice Straws Ensiled by Corn Steep Liquor and Conventional Rice Straws Ensiled by Urea

“…Fermentation. In general, Shahzad et al (2017) reported that CSL is composed of carbohydrates, peptides, essential amino acids, minerals, vitamins and unidentified organic and inorganic compounds to rice straws ensilage. Hence, lactic acid bacteria in silage are able to ensure fast and vigorous fermentation because of their rapid accumulation of lactic acid and lower pH values at earlier stages of ensiling (Zhang et al, 2018).…”

Production of Alkaline Protease Using Industrial Waste Effluent as Low-cost Fermentation Substrate

“…CSL is a source of elemental nutrients such as nitrogen, reducing sugars, minerals, proteins, enzymes, organic acids and vitamins. In the chemical industry, CSL as a low cost substrate is widely used in fermentation processes [35][36][37].…”