Role of Sophorolipid Biosurfactant in Degradation of Diesel Oil byCandida tropicalis

Chandran, Preethy; Das, Nilanjana

doi:10.1080/10889868.2011.628351

Cited by 38 publications

(25 citation statements)

References 28 publications

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“…Biosurfactant production was confirmed with various standard methods i.e. oil displacement [21], drop collapse [29], and haemolysin tests [30].…”

Section: Screening For Biosurfactant Productionmentioning

confidence: 99%

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Evaluation Laboratory Produced Biosurfactant by Rhodotorula Species and Its Antifungal Activity

Gharaghani¹,

Halvaeezadeh²,

Mahmoudabadi³

2019

Preprint

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Background: Biosurfactants are amphiphilic surface active compounds that produced by several microorganisms, including, bacteria and fungi. Biodegradability, low toxicity, applications diversity and functionality under extreme conditions are characterized them from chemically biosurfactants. It is found that, Rhodotorula species, read yeasts, have high potency for biosurfactant producing. Recently, antimicrobial activities of biosurfactants have been subjected for new antibiotic therapy. The aim of the present study was to evaluate biosurfactant production by the different strains of Rhodotorula species in laboratory conditions. In addition, antifungal activity of produced biosurfactant was assessed against several saprophytic fungi. In the present study 54 strains of Rhodotorula including, R. glutinis (48 strains), R. minuta (2 strains), R. mucilaginosa (2 strains) and Rhodotorula species (2 strains) were screened for biosurfactant production. The biosurfactant was produced using the Sabouraud dextrose broth medium and confirmed by specific tests. Antifungal assay was also evaluated by disk diffusion method and the serial dilutions of biosurfactant. In the present study, although all tested strains were capable to produce biosurfactant in vitro, the degree of biosurfactant production was varied among stains. 7.4% strains had the highest (+5) biosurfactant activity followed by 16.7%, 29.5%, 25.8% and 20.4% had +4, +3, +2 and +1, respectively. In the present study, all tested fungi were inhibited at 40 µl of biosurfactant. Rhodotorula species are appropriate organisms for the production of biosurfactants and R. glutinis strains have the greatest ability to producing biosurfactant than another species. Furthermore, our results were demonstrated that the produced biosurfactant by R. glutinis presented a valuable potential for biopharmaceutical applications.

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“…Biosurfactant production was confirmed with various standard methods i.e. oil displacement [21], drop collapse [29], and haemolysin tests [30].…”

Section: Screening For Biosurfactant Productionmentioning

confidence: 99%

“…Producing biosurfactants by fungi are limited to some species of Candida, Pseudozyma, Yarrowia, Penicillium and Aspergillus species [5,[20][21][22][23]. Recently, the production of biosurfactants from Rhodotorula glutinis [24], R. mucilaginosa [25] and R. paludigena [26] has been investigated by researchers.…”

Section: Introductionmentioning

confidence: 99%

Evaluation Laboratory Produced Biosurfactant by Rhodotorula Species and Its Antifungal Activity

Gharaghani¹,

Halvaeezadeh²,

Mahmoudabadi³

2019

Preprint

View full text Add to dashboard Cite

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“…There has been much research focusing on production of novel biosurfactants including those from Arthrobacter sp. strain MIS38 (Morikawa et al 1993), Bacillus licheniformis MS3 (Biria et al 2010), and yeast Candida tropicalis (Chandran and Das 2012). Despite having these commercially attractive properties and clear advantages compared with their synthetic counterparts, the production of microbial surfactants on a commercial scale has not been realized because of the problems of low yields and high production costs (Cameotra and Makkar 2004).…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Biosurfactant Activity of Crude Oil–Degrading Bacteria and Its Correlation to Total Petroleum Hydrocarbon Degradation

Phan

Bakar

Hamzah

2013

Bioremediation Journal

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In this study, 11 bacteria isolated from Tapis crude oil-contaminated sites were identified by using biochemical tests and 16S rDNA gene sequencing. Their abilities to biodegrade Tapis crude oil was determined by gas chromatography before they were further screened for biosurfactant activity by employing qualitative (blood agar hemolysis, microplate assay, drop-collapse test), semiquantitative (emulsification formation), and quantitative (surface tension measurement) methods. Four isolates, namely, Acinetobacter baumanii UKMP-12T, Pseudomonas aeruginosa UKMP-14T, Rhodococcus sp. UKMP-5T, and Rhodococcus sp. UKMP-7T, exhibited high percentages in total petroleum hydrocarbon (TPH) degradation. A strong correlation between the emulsification index (E 24 ) and surface tension measurement (r s = +.866) as shown by Spearman rank correlation analysis suggested that these two methods were more reliable to predict biosurfactant activity. The TPH removal was also positively correlated to the ability of bacterial isolates to reduce the surface tension of growth medium, as revealed by Pearson correlation test (r p = +.886). In conclusion, not all the biosurfactant detection protocols employed were effective. Nevertheless, the measurement of surface tension and E 24 determination provided a rather rapid, easy, reproducible, and accurate result in identifying bacteria with biosurfactant-producing ability.

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“…[31][32][33] This review aims to discuss the latest approaches in these aspects which have a critical influence on reduction of the sophorolipid production cost and enhancement Wetting agent 12 Promote leptin synthesis 13,14 Bioremediation (e.g. decontamination of polluted hydrocarbon and heavy metal from soil or mud) [2][3][4]15 Oil recovery in petroleum industry 16,17 Cleansing agent (e.g. dish washer, laundry agent) 18,19 Cosmetic (e.g.…”

Section: Introductionmentioning

confidence: 99%

Starmerella bombicola: recent advances on sophorolipid production and prospects of waste stream utilization

Wang

Roelants

et al. 2018

J of Chemical Tech & Biotech

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Sophorolipids are among the most extensively studied microbial biosurfactants. Starmerella bombicola is the most productive strain known for sophorolipid production, with volumetric productivity of up to 3.7 g L−1 h−1. This review focuses on the two most important aspects that have an influence on sophorolipid commercialization. Firstly, the metabolic engineering achievements of S. bombicola in the last decade are summarized. Secondly, three improvements of the bioprocess are described, including alternative feedstock, fermentation strategy and specially designed bioreactor. Discussion is made on the waste sources that have been used as feedstock for sophorolipid production, and the review also emphasizes the potential of food waste as nutrient source. Fermentation strategies that correlate with the specially designed bioreactors for commercialization are also discussed in detail. © 2018 Society of Chemical Industry

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Role of Sophorolipid Biosurfactant in Degradation of Diesel Oil byCandida tropicalis

Cited by 38 publications

References 28 publications

Evaluation Laboratory Produced Biosurfactant by <em>Rhodotorula </em>Species and Its Antifungal Activity

Evaluation Laboratory Produced Biosurfactant by <em>Rhodotorula </em>Species and Its Antifungal Activity

A Comparative Study on Biosurfactant Activity of Crude Oil–Degrading Bacteria and Its Correlation to Total Petroleum Hydrocarbon Degradation

Starmerella bombicola: recent advances on sophorolipid production and prospects of waste stream utilization

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