Production of short-chain fatty acids from the biodegradation of wheat straw lignin by Aspergillus fumigatus.
The wheat straw lignin-rich fraction (WSLig-RF) can be used as a raw material for the production of metabolites for industrial use if ligninolytic mitosporic fungi are used for its biodegradation into aromatics and short-chain fatty acids (SCFAs, i.e., SCFA2-6). Although methods for the production of SCFA2-6 have been described previously, quantitative data of SCFA2-6 production have not been reported. The objectives of this study were to investigate the biodegradation of different concentrations of WSLig-RF by Aspergillus fumigatus and to identify whether SCFA2-6 production was dependent on the concentration of aromatics. A. fumigatus generated 2805mgL(-1) acetic acid when mixed with WSLig-RF at a concentration of 20gL(-1). Thus, aromatics are a substrate for the biosynthesis of SCFA2-6, and their production depends on the concentration of WSLig-RF aromatics.
Solid Waste and Energy Efficiency Research Group IIAF - Universidad Michoacana de San Nicolás de Hidalgo, 58302 Morelia, Mexico; Environmental Microbiology Research Group IIQB - Universidad Michoacana de San Nicolás de Hidalgo, 58040 Morelia, Mexico.
Eduardo
E
Baltierra-Trejo
Environmental Microbiology Research Group IIQB - Universidad Michoacana de San Nicolás de Hidalgo, 58040 Morelia, Mexico.
Juan Manuel
JM
Sánchez-Yáñez
Solid Waste and Energy Efficiency Research Group IIAF - Universidad Michoacana de San Nicolás de Hidalgo, 58302 Morelia, Mexico.
Otoniel
O
Buenrostro-Delgado
Solid Waste and Energy Efficiency Research Group IIAF - Universidad Michoacana de San Nicolás de Hidalgo, 58302 Morelia, Mexico; Mexican Society of Science and Technology Applied to Solid Waste, Av. Cuauhtémoc 403, Col. Roma Norte, Delegación Cuauhtémoc, D.F., C.P. 06700, Mexico. Electronic address: lmarquez@umich.mx.
Liliana
L
Márquez-Benavides
D019342:Acetic Acid / Q000378:metabolism; D001232:Aspergillus fumigatus / Q000378:metabolism*; D001673:Biodegradation, Environmental; D001709:Biotechnology / Q000379:methods*; D005232:Fatty Acids, Volatile / Q000096:biosynthesis* / Q000378:metabolism; D008031:Lignin / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism; D014908:Triticum / Q000378:metabolism*
D005232:Fatty Acids, Volatile; D008031:Lignin; D019342:Acetic Acid
Ascomycetes; Biodegradation; Fungus; Ligninolytic; Mitosporic