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Chapitre D'ouvrage Année : 2022

Microbial Biobased Amphiphiles (Biosurfactants): General Aspects on CMC, Surface Tension and Phase Behaviour

Résumé

Biosurfactants of microbial origin are compounds obtained from the microbial fermentation of glucose and vegetable oils. Developed for their surface active properties combined to a high biodegradability and low toxicity, these molecules have a complex behaviour in water and addressing them as biobased amphiphiles, or bioamphiphiles, is more appropriate. This chapter illustrates the most important properties in solutions of microbial bioamphiphiles, from hydrophilic lipophilic balance (HLB), hydrophilic lipophilic difference (HLD), critical micelle concentration (CMC) and surface tension (ST), typically illustrating their surfactant character, to more complex self-assembly properties, including phase behaviour, rather illustrating their amphiphilic character. These data are critically discussed in the perspective of classical head-tail but also bolaform amphiphiles.
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Dates et versions

hal-03714497 , version 1 (18-07-2022)

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  • HAL Id : hal-03714497 , version 1

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Niki Baccile, Alexandre Poirier. Microbial Biobased Amphiphiles (Biosurfactants): General Aspects on CMC, Surface Tension and Phase Behaviour. Biosurfactants, Elsevier, In press. ⟨hal-03714497⟩
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