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Download or read book Optimization of Supercritical CO2 Extraction of Essential Oil from Artemisia Annua L. by Means of Response Surface Methodology written by and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Atta-ur Rahman
Publisher : Elsevier
ISBN 13 : 0323912559
Total Pages : 546 pages
Book Rating : 4.3/5 (239 download)
Download or read book Studies in Natural Products Chemistry written by Atta-ur Rahman and published by Elsevier. This book was released on 2023-09-13 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Studies in Natural Products Chemistry, Volume 78 covers the synthesis or testing and recording of the medicinal properties of natural products, providing cutting-edge accounts of the fascinating developments in the isolation, structure elucidation, synthesis, biosynthesis and pharmacology of a diverse array of bioactive natural products. Natural products in the plant and animal kingdom offer a huge diversity of chemical structures that are the result of biosynthetic processes that have been modulated over the millennia through genetic effects. With rapid developments in spectroscopic techniques and accompanying advances in high-throughput screening techniques, it has become possible to isolate and then determine the structures and biological activity of natural products rapidly, thus opening up exciting opportunities in the field of new drug development to the pharmaceutical industry. - Focuses on the chemistry of bioactive natural products - Contains contributions by leading authorities in the field - Presents sources of new pharmacophores
Author : Inamuddin
Publisher : John Wiley & Sons
ISBN 13 : 1119829356
Total Pages : 1076 pages
Book Rating : 4.1/5 (198 download)
Download or read book Essential Oils written by Inamuddin and published by John Wiley & Sons. This book was released on 2023-08-01 with total page 1076 pages. Available in PDF, EPUB and Kindle. Book excerpt: Essential oils This exciting new volume, written and edited by some of the world’s foremost experts in the field, provides up-to-date information about the chemical structure of essential oils, as well as their therapeutic and biological actions. It defines their functional uses while evaluating the advantages and disadvantages of their application in various sectors. Essential oils have been used by global communities for centuries, for different purposes such as medicinal, flavoring, preservatives, perfumery, aromatherapy, dentistry, cosmetics, insecticide, fungicide, and bactericide, among others. Essential oils are natural and biodegradable substances, usually non-toxic or with low toxicity to humans. Essential oils are botanical products that have volatile nature, known for their special odor, and found to be effective in the treatment of oxidative stress, cancer, epilepsy, skin allergies, indigestion, headache, insomnia, muscular pain, respiratory problems, etc. Essential oils principally enhance resistance to abiotic stress and protection against aquatic herbivores. They possess antimicrobial, antifungal, antitumor, and antioxidant properties. Essential oils are known to be volatile and susceptible to degradation from various ambient conditions, including temperature, air, light, and humidity, which limits their applications. Encapsulation is a proven technique that can protect essential oils and enable their use in various applications. This book aims to provide current knowledge on the chemical structure, therapeutic, and biological activities of essential oils, as well as to describe their functional uses and assess the benefits and drawbacks of their usage in various fields. By exploring the latest research on essential oils and their encapsulation, this book offers valuable insights and practical guidance for anyone interested in the science and application of these fascinating compounds.
Author : Shaoping Li
Publisher : Springer Nature
ISBN 13 : 9819998719
Total Pages : 879 pages
Book Rating : 4.8/5 (199 download)
Download or read book Quality Control of Chinese Medicines written by Shaoping Li and published by Springer Nature. This book was released on with total page 879 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nurul Suraya Rosli
Publisher :
ISBN 13 :
Total Pages : 53 pages
Book Rating : 4.:/5 (887 download)
Download or read book Herba Extraction and Optimization of Essential Oil from Chromolaena Odorata by Using Solventless Extraction Technique/ \c Nurul Suraya Rosli written by Nurul Suraya Rosli and published by . This book was released on 2013 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditionally, Chromolaena odorata is being used for its many medicinal properties especially for external uses as in wound, skin infections and inflammation. Extraction and characterization of essential oil from C. odorata can be done to discover the potential as medicinal herb. Essential oil carries the aroma of the plant which it be extracted. The current techniques used in extracting essential oil in the industry have their own drawbacks. In this study, solventless extraction technique has been used to extract essential oil from C. odorata. Optimization by using Response Surface Methodology through Central Composite Design (CCD) is done to study the optimum condition for this technique to produce high percentage yield of essential oil. The effect of temperature and time of extraction has been studied in this research. Through the study, the maximum yield of essential oil produced by this technique is at 100°C and 8 hours, that is 0.1%. In order to compare the yield and quality of oil produced, hydro-distillation method was also conducted in this experiment. The essential oil extracted at this condition is then being analyzed by using Gas chromatography (GC) and Gas Chromatography Mass Spectrometry (GCMS) to identify the major compound.
Author : M.B. King
Publisher : Springer Science & Business Media
ISBN 13 : 9401121389
Total Pages : 335 pages
Book Rating : 4.4/5 (11 download)
Download or read book Extraction of Natural Products Using Near-Critical Solvents written by M.B. King and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to present the current state of the art of extracting natural products with near-critical solvents and to view the possibilities of further extensions of the technique. Relevant background theory is given but does not dominate the book. Carbon dioxide is the near-critical solvent used in most recent applications and inevitably receives prominence. In addition to general descriptions and reviews, the book contains three chapters by indus trial practitioners who describe in detail the operation of their processes and discuss the market for their products. Sections on the design of the pressure vessels and pumps required in these processes and on the acquisition of the data required for design are included. The costing of the processes is also discussed. There is good scope for combining a near-critical extraction step with other process steps in which the properties of near-critical solvents are utilised, for example as a reaction or crystallisation medium and a chapter is devoted to these important aspects. It is hoped that the work will be found to contain a great deal of specific information of use to those already familiar with this field. However the style of presentation and content is such that it will also be useful as an introduction. In particular it will be helpful to those wondering if this form of separation method has anything to offer for them, whether they are engineers, chemists or managers in industry, or in academic or research institutions.
Author : Rajeshwar P. Sinha
Publisher : Academic Press
ISBN 13 : 0128206594
Total Pages : 504 pages
Book Rating : 4.1/5 (282 download)
Download or read book Natural Bioactive Compounds written by Rajeshwar P. Sinha and published by Academic Press. This book was released on 2020-10-06 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Natural Bioactive Compounds: Technological Advancements deals with the latest breakthroughs in the field of screening, characterization and novel applications of natural bioactive compounds from diverse group of organisms ranging from bacteria, viruses, cyanobacteria, algae, fungi, bryophytes, higher plants, sponges, corals and fishes. Written by some of the most reputed scientists in the field, this book introduces the reader to strategies and methods in the search for bioactive natural products. It is an essential read for researchers and students interested in bioactive natural products, their biological and pharmacological properties, their possible use as chemopreventive or chemotherapeutic agents, and other future potential applications. - Explores natural sources of bioactive compounds, including cyanobacteria, bacteria, viruses, fungi and higher plants - Discusses the potential applications of biological products, such as their use in medicine (antibiotics, cancer research, immunology), as food additives, supplements and technological substances - Analyzes the contributions of emerging or developing technologies for the study of bioactive natural compounds (characterization and purification)
Author : Alev Yüksel Aydar
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)
Download or read book Utilization of Response Surface Methodology in Optimization of Extraction of Plant Materials written by Alev Yüksel Aydar and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental design plays an important role in several areas of science and industry. Experimentation is an application of treatments applied to experimental units and is then part of a scientific method based on the measurement of one or more responses. It is necessary to observe the process and the operation of the system well. For this reason, in order to obtain a final result, an experimenter must plan and design experiments and analyzes the results. One of the most commonly used experimental designs for optimization is the response surface methodology (RSM). Because it allows evaluating the effects of multiple factors and their interactions on one or more response variables it is a useful method. In this section, recent studies have been compiled which aim to extraction of plant material in high yield and quality and determine optimum conditions for this extraction process.
Author : Mamata Mukhopadhyay
Publisher : CRC Press
ISBN 13 : 9780849308192
Total Pages : 360 pages
Book Rating : 4.3/5 (81 download)
Download or read book Natural Extracts Using Supercritical Carbon Dioxide written by Mamata Mukhopadhyay and published by CRC Press. This book was released on 2000-06-27 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthesizing research from a wide variety of sources, this work offers a convenient guide to a clean, safe, inexpensive, non-toxic, non-polluting solvent that performs better than most conventional solvents. Natural Extracts Using Supercritical Carbon Dioxide reviews recent development in the technology and its applications to the food, flavor, fragrance, and pharmaceutical industries. It outlines the many advantages the method has over traditional methods like steam distillation, solvent extraction, and molecular distillation and it supports the popular trend toward the use of natural products in these industries.
Author : Farid Chemat
Publisher : John Wiley & Sons
ISBN 13 : 3527676813
Total Pages : 384 pages
Book Rating : 4.5/5 (276 download)
Download or read book Green Extraction of Natural Products written by Farid Chemat and published by John Wiley & Sons. This book was released on 2016-03-11 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Extraction processes are essential steps in numerous industrial applications from perfume over pharmaceutical to fine chemical industry. Nowadays, there are three key aspects in industrial extraction processes: economy and quality, as well as environmental considerations. This book presents a complete picture of current knowledge on green extraction in terms of innovative processes, original methods, alternative solvents and safe products, and provides the necessary theoretical background as well as industrial application examples and environmental impacts. Each chapter is written by experts in the field and the strong focus on green chemistry throughout the book makes this book a unique reference source. This book is intended to be a first step towards a future cooperation in a new extraction of natural products, built to improve both fundamental and green parameters of the techniques and to increase the amount of extracts obtained from renewable resources with a minimum consumption of energy and solvents, and the maximum safety for operators and the environment.
Author : Syaiful Nizam Hassan
Publisher :
ISBN 13 :
Total Pages : 86 pages
Book Rating : 4.:/5 (953 download)
Download or read book Extraction of Essential Oil from Jasmine Flower Using Supercritical CO2 Method written by Syaiful Nizam Hassan and published by . This book was released on 2007 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bruce E. Poling
Publisher : McGraw Hill Professional
ISBN 13 : 0071499997
Total Pages : 802 pages
Book Rating : 4.0/5 (714 download)
Download or read book The Properties of Gases and Liquids 5E written by Bruce E. Poling and published by McGraw Hill Professional. This book was released on 2000-11-27 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: Must-have reference for processes involving liquids, gases, and mixtures Reap the time-saving, mistake-avoiding benefits enjoyed by thousands of chemical and process design engineers, research scientists, and educators. Properties of Gases and Liquids, Fifth Edition, is an all-inclusive, critical survey of the most reliable estimating methods in use today --now completely rewritten and reorganized by Bruce Poling, John Prausnitz, and John O’Connell to reflect every late-breaking development. You get on-the-spot information for estimating both physical and thermodynamic properties in the absence of experimental data with this property data bank of 600+ compound constants. Bridge the gap between theory and practice with this trusted, irreplaceable, and expert-authored expert guide -- the only book that includes a critical analysis of existing methods as well as hands-on practical recommendations. Areas covered include pure component constants; thermodynamic properties of ideal gases, pure components and mixtures; pressure-volume-temperature relationships; vapor pressures and enthalpies of vaporization of pure fluids; fluid phase equilibria in multicomponent systems; viscosity; thermal conductivity;diffusion coefficients; and surface tension.
Author : Gerhard M. Schneider
Publisher : Wiley-VCH
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.:/5 (44 download)
Download or read book Extraction with Supercritical Gases written by Gerhard M. Schneider and published by Wiley-VCH. This book was released on 1980 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mijeong Jeong
Publisher :
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (392 download)
Download or read book Optimizing the Modifying Solvent for Supercritical CO2 Extractions written by Mijeong Jeong and published by . This book was released on 1998 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. Husnu Can Baser
Publisher : CRC Press
ISBN 13 : 1420063162
Total Pages : 994 pages
Book Rating : 4.4/5 (2 download)
Download or read book Handbook of Essential Oils written by K. Husnu Can Baser and published by CRC Press. This book was released on 2009-12-28 with total page 994 pages. Available in PDF, EPUB and Kindle. Book excerpt: Egyptian hieroglyphs, Chinese scrolls, and Ayurvedic literature record physicians administering aromatic oils to their patients. Today society looks to science to document health choices and the oils do not disappoint. The growing body of evidence of their efficacy for more than just scenting a room underscores the need for production standards, quality control parameters for raw materials and finished products, and well-defined Good Manufacturing Practices. Edited by two renowned experts, the Handbook of Essential Oils covers all aspects of essential oils from chemistry, pharmacology, and biological activity, to production and trade, to uses and regulation. Bringing together significant research and market profiles, this comprehensive handbook provides a much-needed compilation of information related to the development, use, and marketing of essential oils, including their chemistry and biochemistry. A select group of authoritative experts explores the historical, biological, regulatory, and microbial aspects. This reference also covers sources, production, analysis, storage, and transport of oils as well as aromatherapy, pharmacology, toxicology, and metabolism. It includes discussions of biological activity testing, results of antimicrobial and antioxidant tests, and penetration-enhancing activities useful in drug delivery. New information on essential oils may lead to an increased understanding of their multidimensional uses and better, more ecologically friendly production methods. Reflecting the immense developments in scientific knowledge available on essential oils, this book brings multidisciplinary coverage of essential oils into one all-inclusive resource.
Author : Suwei Zhao
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (1 download)
Download or read book A Mechanistic Insight Into Supercritical Fluid - Substrate Interaction in Supercritical CO2 Extraction of Oils from Moringa Oleifera and Eucalyptus written by Suwei Zhao and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: [Truncated] Supercritical CO2 extraction of oils from Moringa oleifera and Eucalyptus was studied using a Supercritical Fluid Technologies Inc. customized Supercritical Water - Supercritical Fluid Extraction (SCW-SFE) system. This new experimental technique was validated by comparing against the results from the conventional methods of Soxhlet extraction and hydro-distillation. Firstly, the yields and compositions of the oils from Moringa oleifera seeds and leaves were extracted using supercritical CO2 and compared with those obtained by Soxhlet extraction. Experimental results revealed that the oil yield from the supercritical fluid extraction was lower than that from the Soxhlet extraction. The chemical compositions of all oils were analysed and the results indicated that the fatty acid compositions of the seed oil extracted by these two methods were very similar. However, there was a significant difference in the Moringa oleifera leaf oil, in which the number of compounds identified in the Soxhlet extraction was significantly greater than that of the supercritical fluid extraction. Secondly, the Eucalyptus leaves were subjected to extraction using all of the three methods. The experimental results showed that Soxhlet extraction achieved the highest yield, while hydro-distillation produced the lowest yield among the three methods. With respect to the oil compositions, the hydro-distillation method extracted only volatile compounds, while the supercritical fluid extraction and Soxhlet extraction methods extracted not only volatile compounds, but also heavy molecular weight compounds.
Author : Saskia Runte
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (858 download)
Download or read book Supercritical CO2-extraction - a New Method to Remove Harmful Substances from Recovered Paper written by Saskia Runte and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
