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AMINO ACID COMPOSITION OF BIOCONVERSION PRODUCTS POST-EXTRACTION RESIDUES OF THE VEGE-TATIVE PART OF PLANTS BY FUNGI FOMITOPSIS PINICOLA (SW.) P. KARST (FP5-15)

The vegetative part of coniferous and deciduous wood plants is a unique source of natural compounds. The natural renewability of woody plants makes them an inexhaustible raw material for the production of biologically active substances. In the process of their production, about 70% of the non-recyclable post-extraction residue of the vegetative part remains, which is used as a feed additive. Since many plant wastes have a low protein content, in which essential amino acids are most often the limiting ones, they must be enriched with microbial protein, in particular the protein of basidial fungi. For this purpose, the fungi Fomitopsis pinicola (sw.) P. KARST (Fp5-15) were used in this work, since they are the least demanding to plant substrates and have high growth indicators. 
The purpose of this study was to study the amino acid composition of products obtained as a result of bioconversion of post-extraction residues of fir tree greens and the vegetative part of balsamic poplar (buds, litter). The analysis of the amino acid composition of the products showed that the protein score increases during the biodegradation process (phenylalanine and tyrosine-by 35 %, threonine – by 37.5%). Also, high amounts of glycine, alanine, histidine, aspartic acid, and glutamic acid were found in the products of biodegradation. In terms of the content of a number of amino acids, the resulting products are superior to cereals and feed products based on the vegetative part of woody plants. 
Thus, the results obtained show the possibility of using fermentation products as protein feed additives.