Some Physical and Chemical Properties of Micromycete Biomass Grown on Food Industry Waste

The chemical composition of cellulose-containing wastes, namely citrus flour, tomato pomace, corn husks and grape juice production wastes, has been studied. It has been established that the main chemical components in the wastes are cellulose, hemicellulose and lignin. As a cellulase producer, a non-pathogenic, acid-resistant and thermophilic mutant of the microscopic fungus Aspergillus terreus IK-40 was used. The age of the seed material (14 days) and the concentration of the substrate in the nutrient zone (3-5 %) were determined. The dynamics of biomass and crude protein accumulation were studied. It is established that the maximum percentage of crude protein in biomass is accounted for on the third day. The dynamics of the cultivation of the obtained biomass was studied. It was found that the greatest amount of crude protein accumulates during bioconversion in the case of grape juice residues. It was shown that the obtained biomass protein contains all essential amino acids in accordance with the standards FAO. Studied dynamics of cultivation of obtained biomass. It has been established that the largest amount of raw protein accumulates during bioconversion in the case of grape juice residues. It was shown that the resulting biomass protein contains all essential amino acids in accordance with FAO standards. Mycotoxicological analysis of biomass. Our strain A. terreus IK-40 produces non-toxic biomass when grown on waste grape juice. As for nucleic acids, their content is less than 2 %.