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

Comparative data on effects of alkaline pretreatments and enzymatic hydrolysis on bioemulsifier production from sugarcane straw by Cutaneotrichosporon mucoides

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Jimenez, Itzcoatl M. [1] ; Chandel, Anuj K. [1] ; Marcelino, Paulo R. F. [1] ; Anjos, Virgilio [2] ; Costa, Cassiano Batesttin [2] ; Bell, Maria Jose V. [2] ; Pereira, Barbara [1] ; da Silva, Silvio S. [1]
Total Authors: 8
[1] Univ Sao Paulo, Dept Biotechnol, Engn Sch Lorena, Estr Municipal Campinho S-N, BR-12602810 Sao Paulo - Brazil
[2] Univ Fed Juiz de Fora, Dept Phys, Engn & Mat Spect Grp, BR-36036900 Juiz De Fora, MG - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Bioresource Technology; v. 301, APR 2020.
Web of Science Citations: 0

Bioemulsifiers are surface active compounds which could be potentially used in food processing, cosmetic sector and oil recovery. Sugarcane straw (SS), was used as the raw substrate for the production of bio-emulsifiers (BE) by Cutaneotrichosporon mucoides. Three different delignification strategies using dilute sodium hydroxide, sodium sulfite and ammonium hydroxide followed by enzymatic hydrolysis (Cellic CTec 2, 7.5% total solids, 15 FPU/g, 72 h) were studied. Enzyme hydrolysis of ammonium hydroxide pretreated SS showed a maximum of 62.19 +/- 0.74 g/l total reducing sugars with 88.35% hydrolytic efficiency (HE) followed by sodium hydroxide (60.06 +/- 0.33 g/l; 85.40% HE) and sodium sulfite pretreated SS (57.22 +/- 0.52 g/l; 84.71% HE), respectively. The ultrastructure of SS (native and delignified) by fourier transform-infrared and near infrared spectroscopy, revealed notable structural differences. The fermentation of hydrolysates by C. mucoides into bioemulsifiers showing emulsification index (EI) of 54.33%, 48.66% and 32.66% from sodium sulfite, sodium hydroxide, and ammonium hydroxide pretreated SS, respectively. (AU)

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
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