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British Biotechnology Journal, ISSN: 2231-2927,Vol.: 4, Issue.: 6 (June)

Short Research Article

Production and Evaluation of Biosurfactant by Serratia marcescens UCP 1549 Using Industrial Wastes

 

T. S. Alves1, J. P. Salgado2, R. F. S. Andrade3,4, D. Montero-Rodríguez3,4, W. B. Ferreira2, M. M. Almeida2, G. M. Campos Takaki4 and H. W. C. Araújo1*

1Department of Chemistry, State University of Paraíba, UEPB, Campina Grande, PB, Brazil.
2Department of Sanitary and Environmental Engineering, State University of Paraíba, UEPB, Campina Grande, PB, Brazil.
3Center of Biological Sciences, Post-graduation Course, Federal University of Pernambuco UFPE, Recife PE, Brazil.
4Nucleus of Research in Environmental Sciences and Biotechnology, Catholic University of Pernambuco, UNICAP, Recife, PE, Brazil.

Article Information

Editor(s):

(1) Chan Yean Yean, Department of Medical Microbiology and Parasitology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.

Reviewers:

(1) Anonymous.

(2) Anonymous.

(3) Anonymous.

(4) Mario De Rosa, II University of Naples, Italy.

Complete Peer review History: http://www.sciencedomain.org/review-history/4980

Abstracts

Aims: Biosurfactants are surface-active agents of microbial origin that have a property of lowering the surface tension between two liquids. This study aimed to the production of biosurfactant by Serratia marcescens UCP 1549 in medium containing agro-industrial wastes for making possible its industrial application in the near future and to propose its environmental applications.
Place and Duration of Study: Center of Science and Technology from State University of Paraíba - UEPB, Campina Grande – PB, Brazil and Nucleus of Research in Environmental Sciences and Biotechnology (NPCIAMB), Catholic University of Pernambuco - UNICAP, Recife-PE, Brazil between June 2011 and July 2012.
Methodology: According to the proposed factorial design, the culture medium was developed and used for the production of biosurfactant and incubated at 28ºC, 155 rpm during 48 h. The produced biosurfactant was evaluated by emulsifying index, emulsifying activity and surface tension using hydrophobic substrates as vegetable oils after frying, n-hexadecane and diesel.
Results: The best results for emulsification index were found between 79.92 and 100% of emulsification and for activity were values between 2.304 and 5.000 EA (emulsification activity) using vegetable oil after frying as substrate. In relation of the surface tension, the best value obtained was 33.10mN/m in the condition of the central point of the experimental design.
Conclusion: The results show that Serratia marcescens UCP 1549 was capable of producing a biosurfactant with emulsifying property from industrial wastes in the studied conditions in this work.

Keywords :

Serratia marcescens; biosurfactant; surface tension; emulsification; industrial wastes.

Full Article - PDF    Page 708-719

DOI : 10.9734/BBJ/2014/9774

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