Enhancing biosurfactant production from an indigenous strain of Bacillus mycoides by optimizing the growth conditions using a response surface methodology

Najafi, A.R.; Rahimpour, Mohammad Reza; Jahanmiri, A.; Roostaazad, Reza; Arabian, Daryush; Ghobadi, Z.

doi:10.1016/j.cej.2010.06.044

Cited by 101 publications

(70 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fermentation was carried out to determine the optimum Ca 2+ density for biosurfactant production, fermentation medium was composed of glucose 30 g L ; the results are shown in Figure 4 . As shown in the results, optimum pH was 6-7, in this range, pH had less effect on biosurfactant production, and this was in agreement with a former report 23 . Glucose was also the optimal carbon source, while diameters of explosive circles with liquid paraffin and soluble starch as carbon source were the same, and only slightly smaller than with glucose, indicating that they could be used as alternative carbon sources.…”

Section: Casupporting

confidence: 81%

Isolation, Fermentation Optimization and Performance Studies of a Novel Biosurfactant Producing Strain Bacillus amyloliquefaciens

Zhang

Cui

2015

Chem. Biochem. Eng. Q.

View full text Add to dashboard Cite

Section: Casupporting

confidence: 81%

Isolation, Fermentation Optimization and Performance Studies of a Novel Biosurfactant Producing Strain Bacillus amyloliquefaciens

Zhang

Cui

2015

Chem. Biochem. Eng. Q.

View full text Add to dashboard Cite

“…The biosurfactant of the Pantoea sp. under study was found with reduction of a surface tension of the medium of 69.67 mN/m for 30.00 mN/m one reduce of 56.93% (Table 3), which is comparable with the reports of Najafi et al [17], when used which them bacterium are well known to produce biosurfactant, by thus it is capable of reducing surface tension of the media by approximately 30-60%. Fig.…”

supporting

confidence: 80%

Optimization and Evaluation of Biosurfactant Produced by Pantoea sp. Using Pineapple Peel Residue, Vegetable Fat and Corn Steep Liquor

Almeida¹,

Silva²,

Garrard³

et al. 2015

JCCE

View full text Add to dashboard Cite

Abstract:In this study, the authors have investigated the potential of a bacterial strain of Pantoea sp., isolated from wastewater of the textile industry, for the production of biosurfactant. The biosurfactant production was optimized by the combination of CCD (central composite design) and RSM (response surface methodology). To assess the effects and interactions of medium the vegetable fat (1.5, 2.0 and 2.5 v/v), the variables corn steep liquor (2.0, 5.0 and 8.0 v/v) and pineapple peel residue (10.0, 25.0 and 40.0 v/v) on the surface tension were evaluated. The empirical model developed through RSM in terms of the effective operational factors mentioned above was found to be adequate to describe the biosurfactant production. Compositional analysis of the produced biosurfactant has been carried out by FT-IR (Fourier transform infrared spectoscopy) and subjected to the test of removing hydrocarbons. Through the analysis, vegetable fat and pineapple peel residue were found to be the most significant factors, whereas corn steep liquor had less effect within the ranges investigated. A maximum reduction in surface tension of 30.00 mN/m was obtained under the optimal conditions of 2.0% (v/v) vegetable fat concentration, 5.0% (v/v) corn steep liquor and 25.0% (v/v) pineapple peel residue concentration of medium. FT-IR spectrometer analysis of the biosurfactant characterized it as a glycolipid derivative. The biosurfactant exhibited the ability to solubilize the hydrocarbons tested, working between 64% and 92%. According to consists of bars with a length proportional to the absolute value of the estimated effects divided by the standard error. On this chart, ANOVA (analysis of variance) effect estimates are arranged from the largest to smallest absolute value. The chart includes a vertical line at the critical p-value of 0.05. Effects for which the bars are smaller than the critical p-value are considered non-significant and do not have an effect on the response variables. The effects are either positive or negative ANOVA; the determination of regression coefficients and the construction of graphs were performed using the Statistical ® program, version 7.0 (Statsoft Inc, RSA). The results, the biosurfactant produced by Pantoea sp. can be a valuable source for application in rapid environmental bioremediation.

show abstract

“…However, optimum Bs production is generally near neutral pH, although some reports suggest a slight increase in pH from 7-8.5 [10,28]. Normally, the best temperatures for Bs production reported are in the range of 35-40 • C [28].…”

Section: Physicochemical Factors Affecting Bs Production: the Effect mentioning

confidence: 99%

“…Under optimized conditions the Bs reduced ST to 25.34 mNm −1 compared to 27.14 mNm −1 . The Bs production yield reported was 1.74 gL −1 after 96 h. Najafi et al [28] also applied a CCD to enhance the Bs production (lipopeptide) from an indigenous strain of Bacillus mycoides. Temperature, pH, salinity, and glucose were the factors evaluated.…”

Section: Central Composite Designmentioning

confidence: 99%

Statistical Design, a Powerful Tool for Optimizing Biosurfactant Production: A Review

Bertrand

Martínez‐Morales

Rosas-Galván

et al. 2018

Colloids and Interfaces

View full text Add to dashboard Cite

Biosurfactants (Bs) have been studied for decades and applied in different industrial sectors because of their competitive biochemical characteristics, and the fact that they are environmentally friendly. Current scientific investigations mainly involve the search for novel Bs producing organisms with attractive characteristics. Bs are expected to replace synthetic surfactants in the near future, but low production yields and inefficient downstream processes have prevented their widespread use. Although there are numerous reports on Bs optimization, to date there has been no critical compilation or revision of the statistical designs and strategies employed for improved production. The purpose of this mini review is to briefly discuss the factors that affect Bs production and the importance of statistical design as an essential tool for increasing production.

show abstract

Enhancing biosurfactant production from an indigenous strain of Bacillus mycoides by optimizing the growth conditions using a response surface methodology

Cited by 101 publications

References 31 publications

Isolation, Fermentation Optimization and Performance Studies of a Novel Biosurfactant Producing Strain Bacillus amyloliquefaciens

Isolation, Fermentation Optimization and Performance Studies of a Novel Biosurfactant Producing Strain Bacillus amyloliquefaciens

Optimization and Evaluation of Biosurfactant Produced by Pantoea sp. Using Pineapple Peel Residue, Vegetable Fat and Corn Steep Liquor

Statistical Design, a Powerful Tool for Optimizing Biosurfactant Production: A Review

Contact Info

Product

Resources

About