Selection of lipase-producing microorganisms through submerged fermentation.
Lipases are enzymes used in various industrial sectors such as food, pharmaceutical and chemical synthesis industries. The selection of microorganisms isolated from soil or wastewater is an alternative to the discovery of new species with high enzymes productivity and with different catalytic activities. In this study, the selection of lipolytic fungi was carried out by submerged fermentation. A total of 27 fungi were used, of which 20 were isolated from dairy effluent and 7 from soil contaminated with diesel oil. The largest producers were the fungi Penicillium E-3 with maximum lipolytic activity of 2.81 U, Trichoderma E-19 and Aspergillus O-8 with maximum activities of 2.34 and 2.03 U where U is the amount of enzyme that releases 1 micromol of fatty acid per min per mL of enzyme extract. The fungi had maximum lipolytic activities on the 4th day of fermentation.
Colla
Luciane Maria
LM
Laboratório de Fermentações, Curso de Engenharia de Alimentos, Universidade de Passo Fundo, Passo Fundo, RS, Brazil.
Primaz
Andreiza Lazzarotto
AL
Benedetti
Silvia
S
Loss
Raquel Aparecida
RA
de Lima
Marieli
M
Reinehr
Christian Oliveira
CO
Bertolin
Telma Elita
TE
Costa
Jorge Alberto Vieira
JA
D001230:Aspergillus / Q000201:enzymology; D005285:Fermentation; D005658:Fungi / Q000201:enzymology* / Q000254:growth & development / Q000302:isolation & purification; D005670:Fusarium / Q000201:enzymology; D007700:Kinetics; D008049:Lipase / Q000096:biosynthesis / Q000378:metabolism*; D010407:Penicillium / Q000201:enzymology; D012988:Soil Microbiology; D014242:Trichoderma / Q000201:enzymology
D008049:Lipase