Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Production of cellulases byAureobasidium pullulansLB83: optimization, characterization, and hydrolytic potential for the production of cellulosic sugars

Full text
Vieira, Matheus Maitan [1] ; Kadoguchi, Elen [1] ; Segato, Fernando [1] ; da Silva, Silvio S. [1] ; Chandel, Anuj K. [1]
Total Authors: 5
[1] Univ Sao Paulo, Engn Sch Lorena, Dept Biotechnol, Estr Municipal Campinho S-N, BR-12602810 Lorena, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Web of Science Citations: 0

Aureobasidium pullulansLB83 was evaluated for cellulase production under submerged fermentation conditions. Different process variables such as carbon sources (corn cob, sugarcane bagasse, and sugarcane straw), synthetic (urea, ammonium sulfate, and peptone), and non-synthetic (soybean meal, rice, and corn meal) nitrogen sources and inoculum size were evaluated by one parameter at-a-time strategy.Aureobasidium pullulansLB83 showed maximum cellulase activity (FPase, 2.27 U/mL; CMCase, 7.42 U/mL) on sugarcane bagasse. Among the nitrogen sources, soybean meal as a non-synthetic nitrogen sources showed a maximum cellulase activity (FPase 2.45 U/mL; CMCase, 6.86 U/mL) after 60 hr. The inoculum size of 1.6 x 10(6) CFU/mL had the maximum FPase and CMCase activities of 3.14 and 8.74 U/mL, respectively. For the enzymatic hydrolysis, both the commercial cellulase (10 FPU/g of Cellic CTec 2 (\#A) and 10 FPU/g of crude enzyme extract (CEE) (\#B), and varying ratio of CTec 2 and CEE in combination \#C (5 FPU/g of CTec 2 + 5 FPU/g CEE), combination \#D (2.5 FPU/g of CTec 2 + 7.5 FPU/g CEE), and combination \#E (7.5 FPU/g of CTec 2 + 2.5 FPU/g CEE) were assessed for enzymatic hydrolysis of delignified sugarcane bagasse. Enzyme combination \#C showed maximum hydrolysis yield of 92.40%. The study shows the hydrolytic potential of cellulolytic enzymes fromA. pullulansLB83 for lignocellulosic sugars production from delignified sugarcane bagasse. (AU)

FAPESP's process: 14/18714-2 - Enzymatic oxidation of sugarcane bagasse: discovery, characterization and new application of oxidative enzymes active in carbohydrates, applied to the enhancement of a fungal cell factory
Grantee:Fernando Segato
Support type: Program for Research on Bioenergy (BIOEN) - Young Investigators Grants
FAPESP's process: 16/14852-7 - A sustainable solution against neglected tropical diseases using biosurfactants produced by yeasts in sugarcane bagasse hemicellulosic hydrolyzate
Grantee:Paulo Ricardo Franco Marcelino
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 16/10636-8 - From the cell factory to the Biodiesel-Bioethanol integrated biorefinery: a systems approach applied to complex problems in micro and macroscales
Grantee:Roberto de Campos Giordano
Support type: Program for Research on Bioenergy (BIOEN) - Thematic Grants
FAPESP's process: 08/57926-4 - Research and development aiming at the integrated exploitation of sugarcane bagasse for the biotechnological production of lignocellulosic ethanol
Grantee:Silvio Silvério da Silva
Support type: Program for Research on Bioenergy (BIOEN) - Thematic Grants