Control-release of antimicrobial sophorolipid employing different biopolymer matrices

Solaiman, Daniel K. Y.; Ashby, Richard D.; Zerkowski, Jonathan A.; Krishnama, Anusha; Vasanthan, Nadarajah

doi:10.1016/j.bcab.2015.06.006

Cited by 31 publications

(11 citation statements)

References 34 publications

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“…The blends with PHMG granular polyethylene wax showed bactericidal activity against E. coli and S. aureus , while the ones with PHMG stearate and salt of sulfanilic acid did not . Sophorolipids/PHB composite possessed the antimicrobial activity against P. acnes , and the growth‐inhibition activity was dependent on the sophorolipids contents …”

Section: Preparation Of Antimicrobial Surfacementioning

confidence: 99%

Surface Modification of Polyhydroxyalkanoates toward Enhancing Cell Compatibility and Antibacterial Activity

Liu

Zhang

et al. 2017

Macro Materials & Eng

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Biomaterials for in vivo application should induce positive interaction with various histocytes and inhibit bacteria inflection as well. Cells and/or bacteria response to the extracellular environment is therefore the basic principle to design the biomaterials surface in order to induce the specific biomaterial–biological interaction. Polyhydroxyalkanoate (PHAs) are of growing interests because of their natural origin, biodegradability, biocompatibility, and thermoplasticity; however, quite inert and intrinsic hydrophobic characteristics have hindered their extensive usage in medical applications. Surface modification of PHAs tailors the chemistry, wettability, and topography without altering the bulk properties, and introduces specific proteins/peptides and/or antibacterial agents to mediate cell–matrix interactions. This review describes the recent developments on the surface modification of PHAs to construct cell compatible and antibacterial surfaces.

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Section: Preparation Of Antimicrobial Surfacementioning

confidence: 99%

Surface Modification of Polyhydroxyalkanoates toward Enhancing Cell Compatibility and Antibacterial Activity

Liu

Zhang

et al. 2017

Macro Materials & Eng

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“…In recent years, SLs have received increasing attention due to their superior properties than traditional chemical surfactants, such as antimicrobial activity and low toxicity . Solaiman et al . reported that sophorolipids or SL‐biopolymers inhibited growth of skin pathogen Propionibacterium acnes isolated from salted hides.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial Activities of Sophorolipids and Nisin and Their Combination against Foodborne Pathogen Staphylococcus aureus

Chen

Zhi-fei

et al. 2019

Euro J Lipid Sci & Tech

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In food processing, both preservatives and surfactants are usually added to ensure the quality of food. Sophorolipids (SLs) are extracellular biosurfactants produced by yeasts that have antibacterial activities. Nisin is a polycyclic antibacterial peptide produced by Lactococcus lactis. In this study, the possibility of using SLs alone as a preservative and in combination with nisin as a compound additive is investigated. SLs and nisin exhibit effective antibacterial activities against foodborne pathogen Staphylococcus aureus with minimum inhibitory concentrations of 32 and 0.5 µg mL−1, respectively. Both SLs and nisin increase cell wall and cell membrane permeability of S. aureus, enhance intracellular content release and activities of extracellular ALP and β‐galactosidase, and reduce respiratory‐chain dehydrogenase activity of the pathogen. Fractional inhibitory concentration (FIC) index for SLs and nisin combination is 1.5, indicating the effect of SLs with nisin is additive. Results of the study indicate that SLs could be used alone as a preservative or in combination with nisin as a promising compound additive with functions of both emulsifier and preservative. Practical Applications: SLs could be used alone as a preservative in food industry or in combination with nisin as a promising compound additive with functions of both emulsifier and preservative.

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“…studied the controlled release of SL from biopolymer films and its antimicrobial properties 16 . They reported that SL have the potential to be used as a plasticizer by lowering the degree of polymer crystallization.…”

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confidence: 99%

Application of Glycolipid Biosurfactants as Surface Modifiers in Bioplastics

et al. 2018

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INTRODUCTION Biosurfactants BSs are functional amphiphilic compounds produced by a variety of microorganisms. Compared to chemically synthesized surfactants, BSs are more eco-friendly, biocompatible, and multifunctional. Glycolipid-type BSs are the most promising BSs for many industrial processes because of their availability from renewable resources, such as vegetable oils and sugars, and their versatile interfacial and biochemical properties 1, 2. Sophorolipids SL are a class of glycolipid-type BSs that can be easily mass produced 3. Starmerella bombicola is a high-yield producer of SL over 400 g/L 4 6. Naturally synthesized SL are mixtures of lactonic and acidic forms with a content ratio that depends on the specific species of the producers. SL are surface-active and exhibit low toxicity, high biodegradability, and antimicrobial properties. Many are currently used as additives in cleaning products and cosmetics 7, 8. Mannosylerythritol lipids MEL are also produced by fungal strains of the genus Pseudozyma or Ustilago 9, 10. MEL also boast excellent interfacial properties, specific self-assembly, and a variety of biological activities 1 .

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Control-release of antimicrobial sophorolipid employing different biopolymer matrices

Cited by 31 publications

References 34 publications

Surface Modification of Polyhydroxyalkanoates toward Enhancing Cell Compatibility and Antibacterial Activity

Surface Modification of Polyhydroxyalkanoates toward Enhancing Cell Compatibility and Antibacterial Activity

Antibacterial Activities of Sophorolipids and Nisin and Their Combination against Foodborne Pathogen Staphylococcus aureus

Application of Glycolipid Biosurfactants as Surface Modifiers in Bioplastics

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