Rhamnolipid Biosurfactant
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Rhamnolipid Biosurfactant
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Author : Rajesh Kumar
language : en
Publisher: Springer
Release Date : 2018-10-17
Rhamnolipid Biosurfactant written by Rajesh Kumar and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-17 with Medical categories.
This book highlights the recent developments on rhamnolipid biosurfactant, its properties, role on the natural environment and various applications. Recently, it has shown promising application in Environment, Agriculture, food, petroleum, and pharmaceutical industries due to its environment-friendly and easily degradable nature. The book emphasizes on the various techniques that are utilized for the detection and isolation of rhamnolipid biosurfactant from microorganisms. It highlights the various aspects of the rhamnolipid biosurfactants including structural characteristics, production, and its application. The book presents the current knowledge and the latest advances in the function-based metagenomics strategies to facilitate the exploration of the novel biosurfactants.
Biosurfactants
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Author : Catherine N. Mulligan
language : en
Publisher: CRC Press
Release Date : 2014-02-10
Biosurfactants written by Catherine N. Mulligan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-02-10 with Medical categories.
Microbially derived surfactants, called biosurfactants, provide a promising alternative to synthetic surfactants, displaying better availability and being generally nontoxic and biodegradable. Biosurfactants also have the advantage of diverse chemical properties and the potential to be less expensive. They demonstrate properties such as reducing surface tension, stabilizing emulsions, and promoting foaming. With many promising research results, a consolidated resource of biosurfactant knowledge is needed to build a framework for further development of applications. Biosurfactants: Research Trends and Applications fills this need, covering the latest research and development on relevant aspects of biological, biochemical, and physical processes and applications of biosurfactants. This book reviews current knowledge and the latest advances, strategies for improving production processes, and the status of biosynthetic and genetic regulation mechanisms for microbial surfactants. Chapters present research findings on specific biosurfactants, such as high surface activity rhamnolipids, yeast-derived sophorolipids, lipopeptides, and trehalose lipids that have potential for environmental, industrial, and medical uses. The book also describes sources and characteristics of marine microbial biosurfactants, biosurfactants made from food processing by-products and biosurfactants used in the food industry, and biosurfactants for green synthesis of nanoparticles. The text presents applications of biosurfactants in environmental industries and examines interactions between metals and various classes of biosurfactants and related metal remediation technologies. The final chapter reviews the state of the art of biosurfactants and their applications, and proposes approaches to overcome any challenges.
Rhamnolipid Biosurfactant Production From Glycerol
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Author : Neissa M. Pinzon-Gamez
language : en
Publisher:
Release Date : 2009
Rhamnolipid Biosurfactant Production From Glycerol written by Neissa M. Pinzon-Gamez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Biosurfactants categories.
"Glycerol is generated in large quantities as the major byproduct of biodiesel manufacturing. Developing new processes requiring large volumes of glycerol is essential for a sustainable and profitable biodiesel production. Rhamnolipids are high-value effective biosurfactants that can be produced by Pseudomonas aeruginosa from glycerol. These biosurfactants have been recognized for their immense potential in bioremediation and enhanced oil recovery. Industrial production of rhamnolipids is still a challenge especially under aerobic conditions because of the highly foaming nature of the culture broth and the complex regulatory mechanisms involved. Foaming in aerobic rhamnolipid fermentation appears extremely fast and is too stable to be handled by common foaming control methods. An alternative approach to avoid foaming problems is to use a denitrifying fermentation, taking advantage of the ability of P. aeruginosa to perform nitrate respiration. Isolates of glycerol-utilizing P. aeruginosa were obtained from soil samples of a biodiesel production plant. With an improved methylene blue/cetyl trimethylammonium bromide (CTAB) agar plate's method, the highest rhamnolipid producers from glycerol were identified. P. aeruginosa E03-40 and P. aeruginosa PAO1 were selected as the production strains for batch denitrifying studies. Successful cell growth and rhamnolipid production were obtained with glycerol as substrate under denitrifying fermentation conditions. Higher cell concentrations, using a more controlled nitrate addition better matching the respiration needs of the culture, were attained from the NAD(P)H fluorescence signal monitoring. The foaming problems associated with commonly used aerobic rhamnolipid fermentations were also avoided using the denitrifying approach in which nitrate (instead of oxygen) was employed as electron acceptor for respiration. In comparison to the free-cell fermentation, immobilized systems were also evaluated in this study under denitrifying conditions. Immobilized systems relying on oxygen as electron acceptor have been previously investigated but oxygen transfer limitation presents difficulties for continuous rhamnolipid production. The immobilized approach based on a hollow fiber set-up eliminated the transfer limitation problems and was found suitable for a continuous rhamnolipid production using glycerol as carbon source. Another aspect that was addressed in this study was directed twards the development of a robust analysis for rhamnolipid quantification with the similar aim of large scale production of rhamnolipids. The currently used methods are tedious and laborious. A fast method for rhamnolipid analysis can significantly enhance the strain selection, metabolic engineering, and process development for improved production. A qualitative method was proposed earlier to differentiate rhamnolipid producing and non-producing strains using agar plates containing methylene blue and CTAB. By systematically investigating the complexation of rhamnolipids and methylene blue, with and without the presence of CTAB, a rapid and simple method for rhamnolipid analysis was developed. The method was successfully applied to the batch samples obtained from the denitrifying fermentations used during this project."--Abstract.
Rhamnolipid Biosurfactants For Bioremediation
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Author : Jessica Lynn Hittle
language : en
Publisher:
Release Date : 1998
Rhamnolipid Biosurfactants For Bioremediation written by Jessica Lynn Hittle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Biosurfactants
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Author : Gloria Soberón-Chávez
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-29
Biosurfactants written by Gloria Soberón-Chávez and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-09-29 with Science categories.
Biosurfactants, tensio-active compounds produced by living cells, are now gaining increasing interest due to their potential applications in many different industrial areas in which to date almost exclusively synthetic surfactants have been used. Their unique structures and characteristics are just starting to be appreciated. In addition, biosurfactants are considered to be environmentally “friendly,” relatively non-toxic and biodegradable. This Microbiology Monographs volume deals with the most recent advances in the field of microbial biosurfactants, such as rhamnolipids, serrawettins, trehalolipids, mannosylerythritol lipids, sophorolipids, surfactin and other lipopeptides. Each chapter reviews the characteristics of an individual biosurfactant including the physicochemical properties, the chemical structures, the role in the physiology of the producing microbes, the biosynthetic pathways, the genetic regulation, and the potential biotechnological applications.
Rhamnolipid Biosurfactant Mediated Biodegradation Of Hexadecane By Pseudomonas In Liquid Systems
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Author : Srinivas Gunnam
language : en
Publisher:
Release Date : 1994
Rhamnolipid Biosurfactant Mediated Biodegradation Of Hexadecane By Pseudomonas In Liquid Systems written by Srinivas Gunnam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Advancements In Biosurfactants Research
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Author : Ruby Aslam
language : en
Publisher: Springer Nature
Release Date : 2023-01-25
Advancements In Biosurfactants Research written by Ruby Aslam and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-25 with Science categories.
This book presents numerous uses of biosurfactants as potential alternatives to synthetic surfactants in food, textile, biomedical and therapeutic applications as well as in bioremediation and waste management. Divided into four parts, the book explores a wide range of biosurfactants as sustainable materials, starting with an overview of biosurfactants’ production, in which readers will find topics such as characterization, purification, sustainable production, biodegradation, and cytotoxic aspects of biosurfactants. Part 2 presents the latest applications of biosurfactants in food and textile industries, as well as their application in nanoparticle synthesis, heavy metal remediation, drug absorption, waste treatment, agriculture management, marine sediment remediation of organic pollutants, emulsification and biofuel production, and as anti-corrosive agents. Part 3 traces current biomedical applications of biosurfactants, including their use as biocidal, wound healing, and anti-tumour agents. In this part, readers will also discover further applications of biosurfactants in oral cavity care, and biofilm prevention and disruption. The final part of the book discusses the main advantages and disadvantages of biosurfactants over synthetic surfactants, the current challenges in biosurfactant research, and prospects for their commercialization. This book will be a valuable resource for students, scholars and researchers working in the fields of colloidal and interface science, chemistry and chemical engineering. Professionals and scholars alike will appreciate the latest research findings that it presents.
Biosurfactants
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Author : Naim Kosaric
language : en
Publisher: CRC Press
Release Date : 2014-11-03
Biosurfactants written by Naim Kosaric and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-03 with Science categories.
Stresses the Potential Applications of Biosurfactants in Various Industries Environmental concerns and a demand for sustainable chemical production have become important issues in recent years. As a result, microbial biosurfactant-producing systems are gaining momentum as potential replacements for chemical surfactants. Biosurfactants: Production and Utilization—Processes, Technologies, and Economics explores the production, utilization, and industrial/economic use of biosurfactants in modern biotechnology. This book represents comprehensive material developed by contemporary experts in the field. Focusing on research and developments within the last 20 years, it highlights relevant changes in the industry. It provides a detailed account of the current applications of biosurfactants, considers the potential for further environmental, biological, and industrial applications, and concentrates on surfactants and organisms with possibilities for future use. Emphasizes Process Scale-Up and Commercialization Factoring in the industrial application of biosurfactant production based on renewable resources, the book determines how biosurfactants can enhance or replace the properties of chemically synthesized surface-active agents. It discusses moving beyond the laboratory scale of research and development and on to the industrial scale of commercial interest. The book consists of 17 chapters and features expert authors discussing topics that include: Understanding the regulatory processes controlling the production of biosurfactants Strategies for feasible commercial biosurfactant production Examples of cost analysis based on published information The viability of industrial applications in food, cosmetics, and pharmaceuticals Patents for future trends Biosurfactants: Production and Utilization—Processes, Technologies, and Economics contains special sections devoted to the overview and evaluation of specific patents relating to biosurfactants, and methods for production of biosurfactants on a laboratory and industrial/commercial scale. It also presents novel and proven applications for biosurfactants from a number of biotechnology laboratories and research facilities around the world. In addition, it introduces the reader to a variety of real-world industry techniques readily applicable for practical use.
Biosurfactants
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Author : Ramkrishna Sen
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-12-31
Biosurfactants written by Ramkrishna Sen and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-12-31 with Medical categories.
The microbial world has given us many surprises including microbes that grow under extremely harsh conditions (122C at 40 MPa), novel metabolisms such as the uranium and perchlorate reduction, and novel chemicals that can be used to control diseases. We continually face new and difficult problems such as the need to transition to more carbon-neutral energy sources and to find eco-friendly chemicals and to find new drugs to treat disease. Will it be possible to tap into the seemingly limitless potential of microbial activity to solve our current and future problems?The answer to this question is probably yes. We are already looking to the microbial world to provide new energy sources, green chemicals to replace those made from petroleum, and new drugs to fight disease. To help us along these paths, we are deciphering how microorganisms interact with each other. We know that microbial populations interact and communicate with each other. The language that microbes use is chemical where small molecules are exchanged among different microbial cells. Sometimes, these chemicals suppress activities of competitors and could be used as antibiotics or may have other therapeutic uses. Other times, the chemicals stimulate complex responses in microbial populations such as fruiting body or biofilm formation. By understanding the conversation that microbes are having among themselves, e. g.
Microbial Surfactants
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Author : R.Z. Sayyed
language : en
Publisher: CRC Press
Release Date : 2021-11-29
Microbial Surfactants written by R.Z. Sayyed and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-29 with Medical categories.
Biosurfactants are the surface-active biomolecules produced by microorganisms. Biosurfactants have gained commercial significance due to their unique properties, such as high surface activity, high specificity, low toxicity, tolerance to pH, temperature and ionic strength, biodegradability, excellent emulsifying and demulsifying ability, antimicrobial activity, ability to work under extreme conditions, and relative ease of preparation. Biosurfactants are used in several industries, including organic chemicals, petroleum, petrochemicals, mining, metallurgy (mainly bioleaching), agrochemicals, fertilizers, foods, beverages, cosmetics, pharmaceuticals and many others. The aim of this book is to highlight key aspects from basics to advanced concepts, classifications, production and applications in various fields such as agriculture, health, bioremediation, industries, pharmaceutical, oil recovery, environment, and nanotechnology. It also serves as an excellent and expansive literature on fermentation, recovery, genomics, and metagenomics of biosurfactant production. The book focuses on the biosurfactant production from bacteria, the diversity of biosurfactant producing bacteria, and industrial need of biosurfactant.