Biosurfactants are surface-active biomolecules produced by a wide variety of microorganisms. They can be produced from renewable sources, and possess high surface activity, high specificity, low toxicity, tolerance to pH, temperature and ionic strength, biodegradability, excellent emulsifying and demulsifying ability, antimicrobial activity, ability. Biosurfactants have found applications in several industries including organic chemicals, petroleum, petrochemicals, mining, metallurgy (mainly bioleaching), agrochemicals, fertilizers, foods, beverages, cosmetics, pharmaceuticals and many others.
The enormous diversity of biosurfactants make them an interesting group of materials for application in many areas such as agriculture and food. Both epiphytic and endophytic plant associate microbes produce biosurfactants and have vital role in motility, signaling and biofilm formation. In addition, biosurfactants are used to aid germination, act as biocontrol agents, and bioremediation of contaminated soil, replace chemical surfactants and enhance plant microbe's interaction. Green surfactants, due to their amphipathic structure promotes seed germination, exhibit biocontrol activity by inhibition of phytopathogen and including systemic resistance in plants and also play a significant role in bioremediation of pollutants. Green surfactants are less toxic, more eco-friendly and have significant application in agriculture. The lipopeptides produced by many PGPRs can be used for many agricultural applications. Lipopeptides (LPs) are very small molecules that are synthesized by various microorganisms as form of secondary metabolites. Antimicrobial properties of lipopeptides are produced non-ribosomally in many bacteria and fungi during cultivation on various carbon sources.
The main aim of this volume is to highlight the concept, classification, production and applications of microbial surfactants in food and agriculture. The book provides a comprehensive coverage of fermentation, recovery, genomics and metagenomics of biosurfactant production. It is presented in an easy-to-understand manner, and includes protocols, figures, and recent data on the industrial demand. Market and economics, and the production of biosurfactants from novel substrates are particularly worthwhile additions. The volume will be useful for students, researchers, teachers, and entrepreneurs in the area of PGPR and allied fields
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