Production of lipase by Beauveria bassiana on broth supplemented with oily residue



Document title: Production of lipase by Beauveria bassiana on broth supplemented with oily residue
Journal: BBR - Biochemistry and biotechnology reports
Database: PERIÓDICA
System number: 000385268
ISSN: 2316-5200
Authors: 1
1
Institutions: 1Universidade Estadual de Londrina, Departamento de Bioquimica e Biotecnologia, Londrina, Parana. Brasil
Year:
Season: Jul-Dic
Volumen: 3
Number: 2
Pages: 9-15
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract The entomopathogenic fungus Beauveria bassiana CG432 produced an extracellular lipase on the 7th day of fermentation in Alves broth containing 0.25% Triton X-100 and Tween 80 surfactants, and 3.0% olive oil at 28°C and 200rpm. Optimal temperature and pH conditions for lipase activity were found to be range from 40 to 60°C and pH 7.5 and 8.0 using 50 mM Tris-HCl buffer, verified by a hydrolysis p-nitrophenol palmitate assay. Under these conditions, lipase was 50% stable for approximately 10h, however it was stable for up to 10 days (-18°C), refrigerated (4°C) or kept at room temperature (25°C)
Portuguese abstract O fungo entomopatogênico Beauveria bassiana CG432 produziu uma lipase extracelular no sétimo dia de cultivo em meio líquido de Alves contendo 0,25% dos surfactantes Triton X-100 e Tween 80 e 3,0% de óleo de oliva e 200 rpm. A temperatura e o pH ótimos de atividade na faixa de temperatura na faixa de 40 a 60ºC, e pH entre 7,5 e 8,0 em tampão TRIS-HCl 5mM utilizando a reação de hidrólise do substrato palmitato de p- nitrofenol. Sob tais condições, a lipase permaneceu ativa em 50% de sua atividade total durante 10 horas, e foi estável por mais de 10 dias quando armazenada sob congelamento (-18C, refrigeração (4ºC) e a 25C
Disciplines: Química
Keyword: Fermentación,
Biotecnología,
Hongos,
Lipasas,
Bioproducción,
Residuos aceitosos,
Aceite vegetal,
Beauveria bassiana
Keyword: Chemistry,
Fermentation,
Biotechnology,
Fungi,
Lipases,
Bioproduction,
Oily residues,
Vegetable oils,
Beauveria bassiana
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