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Production of biosurfactant by lactic acid bacteria using whey as growth medium
- Source :
- Volume: 43, Issue: 5 676-683, Turkish Journal of Veterinary and Animal Sciences
- Publication Year :
- 2019
- Publisher :
- TUBITAK, 2019.
-
Abstract
- The aim of this study was to produce biosurfactants from whey waste using Streptococcus thermophilus, Lactobacillus acidophilus, and Lactobacillus rhamnosus as well as to determine oil spreading, emulsification index, surface tension, and antiadhesive properties in these biosurfactants. Additionally, the capability of biosurfactant production from whey waste in the dairy industry was compared with that of MRS broth, a commercial culture medium. The presence of biosurfactants by all lactic acid bacteria was detected using the oil spreading test. Zone diameter due to the surface activity of lactic acid bacteria strains ranged from 1.87 to 5.92 cm. Biosurfactants from both whey medium and MRS broth reduced surface tension. Differences between data from whey medium and MRS broth were statistically insignificant in terms of the biomass, oil spreading, and surface tension of biosurfactants. Emulsification index values recorded after 1 h, 24 h, and 1 week were significantly different and ranged from 19.50% to 58.00%. The highest emulsification activity was exhibited by L. acidophilus from whey medium in the first hours. A 10 mg/mL concentration of biosurfactants was able to prevent S. aureus, P. aeruginosa, and E. coli adhesion 37.25%–52.5%, 10.25%–23.25%, and 5.32%–11.50%, respectively. E. coli was more resistant to the biosurfactants than the other pathogens were. On the other hand, biosurfactants from L. rhamnosus had the lowest antiadhesive effects. In general, biosurfactants from whey medium and MRS broth were similar in terms of antiadhesion properties. The present study showed that dairy wastes could be an appropriate medium for cost-effective biosurfactant production by lactic acid bacteria for the benefit of the food, pharmaceutical, and cosmetic industries. © TÜBİTAK FYL-2015-4390 215O062 Türkiye Bilimsel ve Teknolojik Araştirma Kurumu We would like to thank the Scientific and Technological Research Council of Turkey (TÜBİTAK, Project No: 215O062) and the Çukurova University Research Fund (Project No: FYL-2015-4390) for their financial support.
- Subjects :
- Growth medium
General Veterinary
biology
040301 veterinary sciences
0402 animal and dairy science
food and beverages
Biosurfactant
Antiadhesion
04 agricultural and veterinary sciences
biology.organism_classification
040201 dairy & animal science
Lactic acid
0403 veterinary science
Dairy industry waste
chemistry.chemical_compound
fluids and secretions
chemistry
Whey
Lactic acid bacteria
Whey,dairy industry waste,biosurfactant,lactic acid bacteria,antiadhesion
Food science
Bacteria
Subjects
Details
- Language :
- English
- ISSN :
- 13000128 and 13036181
- Database :
- OpenAIRE
- Journal :
- Volume: 43, Issue: 5 676-683, Turkish Journal of Veterinary and Animal Sciences
- Accession number :
- edsair.doi.dedup.....36f914bb80cbd41d65cc5eae2106ff57