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Use of glycerol to biosurfactant production by Bacillus subtilis and co-substrate in the biodegradation of diesel and biodiesel in soil

Grant number: 13/13813-0
Support Opportunities:Scholarships in Brazil - Doctorate
Effective date (Start): March 01, 2014
Effective date (End): August 23, 2017
Field of knowledge:Biological Sciences - Microbiology - Applied Microbiology
Principal Investigator:Ederio Dino Bidoia
Grantee:Jaqueline Matos Cruz
Host Institution: Instituto de Biociências (IB). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil


The soil is one of the most important parts of the environment and is a non-renewable resource which performs many social and environmental functions, like biomass production, filtration, buffering and transformation of many substances. The soil has a role as a habitat and gene pool. These functions are worthy of protection because of their socio-economic and environmental importance. The filtering and transformation are important functions because many solids or liquids are placed on soil. However, these capacities of soil are limited and vary according to the specific soil conditions. Therefore, there can be danger to the ground water or food chain, if the depositions are there for a long time. The biodegradation is the most important way to transform these compounds in the environment. However, many compounds derived from petroleum are recalcitrant, because few microorganisms can metabolize them. Thus, the impact caused by hydrocarbons encouraged the search for renewable energy sources like biodiesel. Along with the great amount of produced biodiesel there is also the production of a residue, glycerol. Several activities should be proposed to maximize the use of this residue in order to cause a smaller impact to the environment, in addition to transform the residue in high added value products. The aim of this project is to use glycerol to generate high added value products like biosurfactants and evaluate the efficiency of this biosurfactants in biodegradation tests with diesel and biodiesel in the presence of glycerol as a co-substrate. The study intends to show changes in the microbial diversity after contamination. The challenge of the study is to draw attention to the soil quality after contamination and provide information to use a residue that will be increasingly abundant.

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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)
CRUZ, JAQUELINE MATOS; CORROQUE, NADIA ALINE; MONTAGNOLI, RENATO NALLIN; MATOS LOPES, PAULO RENATO; MARIN MORALES, MARIA APARECIDA; BIDOIA, EDERIO DINO. Comparative study of phytotoxicity and genotoxicity of soil contaminated with biodiesel, diesel fuel and petroleum. ECOTOXICOLOGY, v. 28, n. 4, p. 449-456, . (13/13813-0)
CRUZ, JAQUELINE MATOS; MONTAGNOLLI, RENATO NALLIN; BIDOIA, EDERIO DINO. Biodegradation of Soybean Biodiesel Generates Toxic Metabolites in Soil. WATER AIR AND SOIL POLLUTION, v. 231, n. 8, p. 12-pg., . (13/13813-0)
CRUZ, JAQUELINE MATOS; HUGHES, CIAN; QUILTY, BRID; MONTAGNOLLI, RENATO NALLIN; BIDOIA, EDERIO DINO. Agricultural Feedstock Supplemented with Manganese for Biosurfactant Production by Bacillus subtilis. WASTE AND BIOMASS VALORIZATION, v. 9, n. 4, p. 613-618, . (13/13813-0)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
CRUZ, Jaqueline Matos. Produção de biossurfactante a partir de glicerol para aplicação durante a biodegradação de misturas biodiesel/diesel em solo. 2017. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Instituto de Biociências. Rio Claro Rio Claro.

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