Abstract：
:Termitomyces fungi associated with fungus-growing termites are the edible mushrooms and can produce useful chemicals, enzymes, and volatile organic compounds (VOCs) that have both fuel and biological potentials. To this purpose, we examined the Termitomyces mycelial growth performance on various substrates, clarified lignocellulose-degrading enzyme activity, and also identified the VOCs produced by Termitomyces. Our results indicated that the optimal nutrition and condition requirements for mycelial growth are D-sorbitol, D-(+)-glucose, and D-(-)-fructose as carbon sources; peptone as well as yeast extract and ammonium tartrate as nitrogen sources; and Mn2+, Na+, and Mg2+ as metal ions with pH range from 7.0 to 8.0. Besides, the orthogonal matrix method results revealed that the ideal composition for mycelial growth is 20 g/L D-(-)-fructose, 5 g/L yeast extract, 0.5 g/L Mg2+, and pH = 7. We also screened various substrates composition for the activity of lignocellulose-degrading enzymes, i.e., lignin peroxidase, manganese peroxidase, β-glucosidase, a-L-arabinofuranosidase, and laccase. Furthermore, we identified 37 VOCs using GC-MS, and the most striking aspect was the presence of a big series of alcohols and acids, collectively constituted about 49% of the total VOCs. Ergosta-5, 8, 22-trien-3-ol, (3.beta.,22E) was the most plenteous compound constituted 30.369%. This study hopes to establish a better understanding for researchers regarding Termitomyces heimii cultivation on a large scale for the production of lignocellulosic enzymes and some fungal medicine.
journal_name
Appl Biochem Biotechnoljournal_title
Applied biochemistry and biotechnologyauthors
Yang G,Ahmad F,Liang S,Fouad H,Guo M,Gaal HA,Mo Jdoi
10.1007/s12010-020-03376-wsubject
Has Abstractpub_date
2020-12-01 00:00:00pages
1270-1283issue
4eissn
0273-2289issn
1559-0291pii
10.1007/s12010-020-03376-wjournal_volume
192pub_type
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