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Production of xylooligosaccharides from chemical and enzimatic hydrolysis of the sugarcane bagasse

Grant number: 11/09100-2
Support Opportunities:Regular Research Grants
Duration: July 01, 2012 - June 30, 2014
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Principal Investigator:Glaucia Maria Pastore
Grantee:Glaucia Maria Pastore
Host Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Associated researchers:Pedro de Oliva Neto


Currently there is a great worldwide interest in the technological use of agroindustrial byproduct (agricultural wastes) as a renewable source for food production and biofuels. The lignocellulosic materials (LCM) are a rich source of polysaccharides, cellulose and hemicellulose, used for the development of technologies in ethanol production, xylose, xylitol, xylooligosaccharides (XOS) and others. The XOS oligosaccharides are uncommon, considered soluble dietary fibers that have prebiotic activity, favoring the improvement in bowel function, immunomodulatory agents, antimicrobial and other health benefits. The most studied treatments for obtaining the XOS are: acid pre-hydrolysis, alkali pre-hydrolysis, autohydrolysis and enzymatic hydrolysis, but the breaking of bonds present in these compounds is relatively difficult and expensive, which limits the production of XOS. The complex must have xylanolytic activity and endo-xylanase enzymes that remove side groups such as acetyl group, but must have low activity b- xylosidases to attenuate the production of xylose, which leads to inhibition of production of XOS. The enzymatic production of XOS is preferred by food industry due to some problems associated with chemical technologies. In this project is proposed to study the association of chemical and enzymatic hydrolysis from isolated microorganisms for production of XOS from sugarcane bagasse as substrate. Calculations of productivity and yield of the process also will be contemplated. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
AZEVEDO CARVALHO, ANA FLAVIA; DE FIGUEIREDO, FRANCIANE CRISTINA; CAMPIONI, TANIA SILA; PASTORE, GLAUCIA MARIA; NETO, PEDRO DE OLIVA. Improvement of some chemical and biological methods for the efficient production of xylanases, xylooligosaccharides and lignocellulose from sugar cane bagasse. BIOMASS & BIOENERGY, v. 143, . (11/09100-2)

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