Current Topics in Phytochemistry PDF Download

Author: Y. Asakawa
Publisher:
ISBN: 9788125800071
Category : Botanical chemistry
Languages : en
Pages :

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Author: Satyajit Dey Sarker
Publisher: Elsevier
ISBN: 0443161038
Category : Science
Languages : en
Pages : 532

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Book Description
Computational Phytochemistry, Second Edition, explores how recent advances in computational techniques and methods have been embraced by phytochemical researchers to enhance many of their operations, refocusing and expanding the possibilities of phytochemical studies. By applying computational aids and mathematical models to extraction, isolation, structure determination, and bioactivity testing, researchers can obtain highly detailed information about phytochemicals and optimize working approaches. This book aims to support and encourage researchers currently working with or looking to incorporate computational methods into their phytochemical work. Topics in this book include computational methods for predicting medicinal properties, optimizing extraction, isolating plant secondary metabolites, and building dereplicated phytochemical libraries. The roles of high-throughput screening, spectral data for structural prediction, plant metabolomics, and biosynthesis are all reviewed before the application of computational aids for assessing bioactivities and virtual screening is discussed. Illustrated with detailed figures and supported by practical examples, this book is an indispensable guide for all those involved with the identification, extraction, and application of active agents from natural products. This new edition captures remarkable advancements in mathematical modeling and computational methods that have been incorporated in phytochemical research, addressing, e.g., extraction, isolation, structure determination, and bioactivity testing of phytochemicals. - Includes step-by-step protocols for various computational and mathematical approaches applied to phytochemical research - Features clearly illustrated chapters contributed by highly reputable researchers - Covers all key areas in phytochemical research, including virtual screening and metabolomics

Author: Shashank Kumar
Publisher: Springer
ISBN: 9811369208
Category : Science
Languages : en
Pages : 575

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Phytochemistry is the branch of science that deals with the study of plant-derived chemicals or compounds, which are also known as phytochemicals or plant-derived secondary metabolites. Plants are known to produce phytochemicals that are essential for their growth and reproduction, as they protect them from insects, pathogens, and herbivores. Some of the major groups of plant-derived secondary metabolites are phenolics, flavonoids, terpenoids, alkaloids, tannin etc. Plant-derived phytochemicals are pharmacologically active and have the potential to cure various human diseases and disorders. Natural plant products have been known for their medicinal properties for untold years, and form the basis of several medicinal systems such as Chinese, Unani, and Ayurvedic Medicine. This book offers an essential introduction to phytochemicals and their synthetic analogues. It discusses various in silico approaches used to identify pharmacologically active phytochemicals and their biological activities, as well as in vitro and in vivo models/assays that have been utilized for the pharmacological profiling of plant-derived products to combat cancer, diabetes, cardiovascular diseases and neurological disorders. The intended audience includes upper-level undergraduate and graduate students; researchers and scientists from the pharmaceutical/food chemistry/nutrition sciences/biochemistry, and clinical biochemistry fields; and medical students. Sharing the latest findings, the book will familiarize these readers with the concepts, chemistry, and tremendous potential of phytochemistry.

Author: Brijesh Kumar
Publisher: CRC Press
ISBN: 1000071545
Category : Medical
Languages : en
Pages : 84

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Rauvolfia species, commonly known as Sarpagandha, has been traditionally used in Ayurveda for curing high blood pressure, hypertension, snake bites, fever, and mental illnesses. Due to its wide variety and differences in chemical composition, it is necessary to develop an efficient and reliable method for rapid screening and determination of phytochemicals in the extracts of the Rauvolfia species. This book will provide qualitative and quantitative comparative phytochemical investigations of selected medicinal plants from the Rauvolfia genus using liquid chromatography-mass spectrometry (LC-MS) techniques. The results will help in assuring the efficacy and safety of Rauvolfia herbal products. Features: Collection of Ayurvedic features and scientific evidence of important medicinal plants. Discusses chemical signatures for the identification of Rauvolfia (Sarpagandha) and its products. Easy-to-use analytical procedure for quality control of Rauvolfia and its products.

Author: Hans-Walter Heldt
Publisher: Academic Press
ISBN: 0120883910
Category : Medical
Languages : en
Pages : 658

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1 A Leaf Cell Consists of Several Metabolic Compartments 2 The Use of Energy from Sunlight by Photosynthesis is the Basis of Life on Earth 3 Photosynthesis is an Electron Transport Process 4 ATP is Generated by Photosynthesis 5 Mitochondria are the Power Station of the Cell 6 The Calvin Cycle Catalyzes Photosynthetic CO2 Assimilation 7 In the Photorespiratory Pathway Phosphoglycolate Formed by the Oxygenase Activity of RubisCo is Recycled 8 Photosynthesis Implies the Consumption of Water 9 Polysaccharides are Storage and Transport Forms of Carbohydrates Produced by Photosynthesis 10Nitrate Assimilation is Essential for the Synthesis of Organic Matter 11 Nitrogen Fixation Enables the Nitrogen in the Air to be Used for Plant Growth 12 Sulfate Assimilation Enables the Synthesis of Sulfur Containing Substances 13 Phloem Transport Distributes Photoassimilates to the Various Sites of Consumption and Storage 14 Products of Nitrate Assimilation are Deposited in Plants as Storage Proteins 15 Glycerolipids are Membrane Constituents and Function as Carbon Stores 16 Secondary Metabolites Fulfill Specific Ecological Functions in Plants 17 Large Diversity of Isoprenoids has Multiple Funtions in Plant Metabolism 18 Phenylpropanoids Comprise a Multitude of Plant Secondary Metabolites and Cell Wall Components 19 Multiple Signals Regulate the Growth and Development of Plant Organs and Enable Their Adaptation to Environmental Conditions 20 A Plant Cell has Three Different Genomes 21 Protein Biosynthesis Occurs at Different Sites of a Cell 22 Gene Technology Makes it Possible to Alter Plants to Meet Requirements of Agriculture, Nutrition, and Industry.

Author: Brijesh Kumar
Publisher: CRC Press
ISBN: 1000064700
Category : Medical
Languages : en
Pages : 82

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Piper is the representative genus of family Piperaceae. Piper species are pan-tropical in distribution and found in both the hemispheres. As the king of all spices, black pepper, Piper nigrum, led to the global expeditions culminating in the discovery of India and the new world. Piper species have been reported to possess various pharmacological activities such as insecticidal, antibacterial, anti-inflammatory, antiplatelet, anti-hypertensive, antithyroid, antitumor activities and hepatoprotective properties. Botanical authentication of the plants of Piper species is difficult because of the morphological similarity among the species. This book describes ultra-performance liquid chromatography coupled with triple quadrupole electrospray tandem mass spectrometry in multiple reactions monitoring (MRM) mode to study the quantitative variation of thirteen bioactive markers in different plant parts of ten Piper species. Features: Collection of Ayurvedic features and scientific evidence of the most important medicinal plants of Piper species. Describes chemical signatures for identification of Piper species. Provides easy-to-use analytical procedure for quality control of Piper species and its products.

Author: Brijesh Kumar
Publisher: CRC Press
ISBN: 1000458091
Category : Health & Fitness
Languages : en
Pages : 82

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Book Description
Cassia is an indigenous plant in Africa, Latin America, Northern Australia and Southeast Asia. Several Cassia species are of high commercial and medicinal significance since they are used as spices and in traditional medicines. Currently plants from genus Cassia is in great demand due to their immense medicinal properties. Cassia species have various pharmacological activities such as antibacterial, analgesic, antiinflammatory, antiarthritic, hepatoprotective, antitumor, antifertility, antifungal, antioxidant, antileishmaniatic, antimicrobial, CNS and hypoglycaemic activitiy. Different class of compounds reported from Cassia species are anthraquinones, phenolics, flavonoids, chromenes, terpenes, proanthocyanidins, coumarins, chromones and lignans. The taxonomy and nomenclature of Cassia species are quite complex. It is very difficult to differentiate them due to their overlapping morphological characters and close similarities. This usually leads to misidentification and misinterpretation of the components. Features: Presents collection of Ayurvedic features and scientific evidence of most important medicinal plants of Cassia species Chemical signatures for identification of Cassia species Easy to use analytical procedure for quality control of Cassia species and its products.

Author: John T. Arnason
Publisher: Springer Science & Business Media
ISBN: 1489917780
Category : Science
Languages : en
Pages : 369

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Book Description
Phytochemicals from medicinal plants are receiving ever greater attention in the scientific literature, in medicine, and in the world economy in general. For example, the global value of plant-derived pharmaceuticals will reach $500 billion in the year 2000 in the OECD countries. In the developing countries, over-the-counter remedies and "ethical phytomedicines," which are standardized toxicologically and clinically defined crude drugs, are seen as a promising low cost alternatives in primary health care. The field also has benefited greatly in recent years from the interaction of the study of traditional ethnobotanical knowledge and the application of modem phytochemical analysis and biological activity studies to medicinal plants. The papers on this topic assembled in the present volume were presented at the annual meeting of the Phytochemical Society of North America, held in Mexico City, August 15-19, 1994. This meeting location was chosen at the time of entry of Mexico into the North American Free Trade Agreement as another way to celebrate the closer ties between Mexico, the United States, and Canada. The meeting site was the historic Calinda Geneve Hotel in Mexico City, a most appropriate site to host a group of phytochemists, since it was the address of Russel Marker. Marker lived at the hotel, and his famous papers on steroidal saponins from Dioscorea composita, which launched the birth control pill, bear the address of the hotel.

Author: Jianbo Xiao
Publisher: Springer
ISBN: 9789811541476
Category : Technology & Engineering
Languages : en
Pages : 1953

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Book Description
This book summarizes recent advances in the chemistry, bioactivity, nutrition, and functional aspects of dietary phytochemicals, as well as the health and functional aspects of foods rich in phytochemicals. Consisting of forty-four chapters, it discusses the different chemical types of phytochemicals in our diets and food and presents data collected from animal or human experiments that are directly related to human health. Each chapter covers the chemistry, epidemiological study, bioavailability, bioactivity (animal experiments) function in humans and safety, as well as products on the market. Moreover, the more than 200 figures make it easy to grasp the main findings in each area.

Author: Mishra, Neha
Publisher: IGI Global
ISBN: 1799825256
Category : Medical
Languages : en
Pages : 335

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Book Description
Though their usage greatly diminished at the dawn of the scientific area, Indian spices were traditional parts of healthcare for thousands of years. However, over the last decade, largely due to the growth in popularity of complementary and alternative medicine, spices have regained attention due to their physiological and functional benefits. By applying modern research methods to traditional remedies, it is possible to discover what made these spices such effective ailment treatments. Ethnopharmacological Investigation of Indian Spices is a collection of innovative research that analyzes the chemical properties and medical benefits of Indian spices in order to design new therapeutic drugs and for possible utility in the food industry. The book specifically examines the phytochemistry and biosynthetic pathway of active constituents of Indian spices. Highlighting a wide range of topics including pharmacology, antioxidant activity, and anti-cancer research, this book is ideally designed for pharmacologists, pharmacists, physicians, nutritionists, botanists, biotechnicians, biochemists, researchers, academicians, and students at the graduate and post-graduate levels interested in alternative healthcare.