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Conversion of renewable substrates for biosurfactant production by Rhizopus arrhizus UCP 1607 and enhancing the removal of diesel oil from marine soil
Pele, Milagre A; Rubio Ribeaux, Daylin; Rodrigues Vieira, Edson; Souza, Adriana F; Luna, Marcos A C; Montero Rodríguez, Dayana; Andrade, Rosileide F S; Sales Alviano, Daniela; Sales Alviano, Celuta; Barreto-Bergter, Eliana; Santiago, André L C M A; Campos-Takaki, Galba M.
  • Pele, Milagre A; Universidade Federal de Pernambuco. Programa de Pós-graduação em Ciências Biológicas. Recife. BR
  • Rubio Ribeaux, Daylin; Universidade Federal de Pernambuco. Programa de Pós-graduação em Ciências Biológicas. Recife. BR
  • Rodrigues Vieira, Edson; Universidade Católica de Pernambuco. Núcleo de Pesquisas em Ciências Ambientais e Biotecnologia. Recife. BR
  • Souza, Adriana F; Universidade Católica de Pernambuco. Núcleo de Pesquisas em Ciências Ambientais e Biotecnologia. Recife. BR
  • Luna, Marcos A C; Universidade Católica de Pernambuco. Núcleo de Pesquisas em Ciências Ambientais e Biotecnologia. Recife. BR
  • Montero Rodríguez, Dayana; Universidade Federal de Pernambuco. Programa de Pós-graduação em Ciências Biológicas. Recife. BR
  • Andrade, Rosileide F S; Universidade Católica de Pernambuco. Programa Nacional de Pós-doutorado-PNPD, CAPES. Recife. BR
  • Sales Alviano, Daniela; Universidade Federal do Rio de Janeiro. Centro de Ciências da Saúde. Rio de Janeiro. BR
  • Sales Alviano, Celuta; Universidade Federal do Rio de Janeiro. Centro de Ciências da Saúde. Rio de Janeiro. BR
  • Barreto-Bergter, Eliana; Universidade Federal do Rio de Janeiro. Centro de Ciências da Saúde. Rio de Janeiro. BR
  • Santiago, André L C M A; Universidade Federal de Pernambuco. Departamento de Micologia. Recife. BR
  • Campos-Takaki, Galba M; Universidade Católica de Pernambuco. Núcleo de Pesquisas em Ciências Ambientais e Biotecnologia. Recife. BR
Electron. j. biotechnol ; 38: 40-48, Mar. 2019. tab, graf, ilus
Article in English | LILACS | ID: biblio-1051342
ABSTRACT

BACKGROUND:

The use of agro-industrial wastes to produce high value-added biomolecules such as biosurfactants is a promising approach for lowering the total costs of production. This study aimed to produce biosurfactants using Rhizopus arrhizus UCP 1607, with crude glycerol (CG) and corn steep liquor (CSL) as substrates. In addition, the biomolecule was characterized, and its efficiency in removing petroderivatives from marine soil was investigated.

RESULTS:

A 22 factorial design was applied, and the best condition for producing the biosurfactant was determined in assay 4 (3% CG and 5% CSL). The biosurfactant reduced the surface tension of water from 72 to 28.8 mN/m and produced a yield of 1.74 g/L. The preliminary biochemical characterization showed that the biosurfactant consisted of proteins (38.0%), carbohydrates (35.4%), and lipids (5.5%). The compounds presented an anionic character, nontoxicity, and great stability for all conditions tested. The biomolecule displayed great ability in dispersing hydrophobic substrates in water, thereby resulting in 53.4 cm2 ODA. The best efficiency of the biosurfactant in removing the pollutant diesel oil from marine soil was 79.4%.

CONCLUSIONS:

This study demonstrated the ability of R. arrhizus UCP1607 to produce a low-cost biosurfactant characterized as a glycoprotein and its potential use in the bioremediation of the hydrophobic diesel oil pollutant in marine soil
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Rhizopus / Surface-Active Agents / Gasoline Language: English Journal: Electron. j. biotechnol Journal subject: Biotechnology Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Católica de Pernambuco/BR / Universidade Federal de Pernambuco/BR / Universidade Federal do Rio de Janeiro/BR

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Full text: Available Index: LILACS (Americas) Main subject: Rhizopus / Surface-Active Agents / Gasoline Language: English Journal: Electron. j. biotechnol Journal subject: Biotechnology Year: 2019 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade Católica de Pernambuco/BR / Universidade Federal de Pernambuco/BR / Universidade Federal do Rio de Janeiro/BR