ArticleBMC microbiology2024
Production and optimization of surfactin produced from locally isolated Bacillus halotolerans grown on agro-industrial wastes and its antimicrobial efficiency.
Article in BMC microbiology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed.
- Phenotypic and Genomic Analysis of Swine-DerivedAnimals : an open access journal from MDPI · 2026Article
- Systems-level genomic and functional characterization of lipopeptide biosurfactant pathways in Bacillus albus MITWPUB5.World journal of microbiology & biotechnology · 2026Article
- Article
- Bacillus halotolerans XJ-1 inhibits the fungal pathogen Fusarium asiaticum while promoting the growth of maize.Scientific reports · 2026Article
- Novel L-lysine α-oxidase from marine streptomyces: production, optimization and potent antibacterial activity against drug-resistant pathogens.Microbial cell factories · 2026Article
- Surfactin-ProducingFoods (Basel, Switzerland) · 2026Article
- Biotechnological Prospects of Indigenous Oil-Degrading Bacteria for Engine Oil Remediation and Environmental Restoration in Mekelle, Ethiopia.TheScientificWorldJournal · 2026Article
- From soil to crop: a tiered screening strategy for lipopeptide-producingFrontiers in microbiology · 2026Article
- Biosurfactant Produced byMicroorganisms · 2025Article
- Bioremediation of diesel-contaminated saline soil and enhancement of microbial salinity tolerance by a biosurfactant-producing Bacillus subtilis AHV-KH11 and external surfactant application: bio-toxicity assessment.Scientific reports · 2025Article
- Genome mining, structural elucidation and surface-active property of a new lipopeptide from Bacillus subtilis.Microbial cell factories · 2025Article
- Bio-Based Surfactants and Biosurfactants: An Overview and Main Characteristics.Molecules (Basel, Switzerland) · 2025Review
- Secondary Metabolites fromCurrent research in microbial sciences · 2025Review
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Abstract
introductionOptimal exploitation of the huge amounts of agro-industrial residuals that are produced annually, which endangers the ecosystem and ultimately contributes to climate change, is one of the solutions available to produce value-added compounds. AIM AND
objectivesThis study aimed at the economic production and optimization of surfactin. Therefore, the production was carried out by the microbial conversion of Potato Peel Waste (PPW) and Frying Oil Waste (FOW) utilizing locally isolated Bacillus halotolerans. Also, investigating its potential application as an antimicrobial agent towards some pathogenic strains.
resultsScreening the bacterial isolates for surfactin production revealed that the strain with the highest yield (49 g/100 g substrate) and efficient oil displacement activity was genetically identified as B. halotolerans. The production process was then optimized utilizing Central Composite Design (CCD) resulting in the amelioration of yield by 11.4% (from 49 to 55.3 g/100 g substrate) and surface tension (ST) by 8.3% (from 36 to 33 mN/m) with a constant level of the critical micelle concentration (CMC) at 125 mg/L. Moreover, the physiochemical characterization studies of the produced surfactin by FTIR,
conclusionSubsequently, the screening of the isolates and the utilized food-processing wastes along with the extraction technique resulted in a high yield of surfactin characterized by acceptable ST and CMC levels. However, optimization of the cultural conditions to improve the activity and productivity was achieved using Factor-At-A-Time (OFAT) and Central Composite Design (CCD). In contrast, surface activity recorded a maximum level of (33 mN/n) and productivity of 55.3 g/100 g substrate. The optimized surfactin had also the ability to maintain the stability of emulsions over a wide range of pH and temperature. Otherwise, the obtained results proved the promising efficiency of the surfactin against bacterial and fungal pathogens.
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