Phytoecdysteroids

Phytoecdysteroids PDF Author: Ugiloy Yusufovna Yusupova
Publisher: Springer Nature
ISBN: 981166711X
Category : Science
Languages : en
Pages : 218

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Book Description
This book presents the results of comprehensive research of an inadequately studied class of secondary plant metabolites: phytoecdysteroids, which are structural analogs of the hormones of molting and metamorphosis of arthropods. The chemical structures of ecdysteroids isolated from plants of the genera Ajuga, Rhaponticum, and Silene have been established. Data on the physicochemical characteristics, reactivity, metabolism, and biological activity of these compounds are presented in this book. Considerations of the role of ecdysteroids in plants are expressed and data on their pharmacological properties are also given. Issues regarding the use of phytoecdysteroids in practical medicine and, accordingly, the technological aspects of deriving drugs on their basis and biologically active food additives of a fortifying type of action are considered as well. The book is intended for specialists in the fields of bioorganic and organic chemistry, biochemistry, biotechnology, and pharmacology. It is also relevant to scientists of various profiles and teachers and students interested in the problems of the chemistry of natural and physiologically active substances.

Phytoecdysteroids

Phytoecdysteroids PDF Author: Ugiloy Yusufovna Yusupova
Publisher: Springer Nature
ISBN: 981166711X
Category : Science
Languages : en
Pages : 218

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Book Description
This book presents the results of comprehensive research of an inadequately studied class of secondary plant metabolites: phytoecdysteroids, which are structural analogs of the hormones of molting and metamorphosis of arthropods. The chemical structures of ecdysteroids isolated from plants of the genera Ajuga, Rhaponticum, and Silene have been established. Data on the physicochemical characteristics, reactivity, metabolism, and biological activity of these compounds are presented in this book. Considerations of the role of ecdysteroids in plants are expressed and data on their pharmacological properties are also given. Issues regarding the use of phytoecdysteroids in practical medicine and, accordingly, the technological aspects of deriving drugs on their basis and biologically active food additives of a fortifying type of action are considered as well. The book is intended for specialists in the fields of bioorganic and organic chemistry, biochemistry, biotechnology, and pharmacology. It is also relevant to scientists of various profiles and teachers and students interested in the problems of the chemistry of natural and physiologically active substances.

Recent Advances in Natural Products Analysis

Recent Advances in Natural Products Analysis PDF Author: Seyed Mohammad Nabavi
Publisher: Elsevier
ISBN: 0128175192
Category : Science
Languages : en
Pages : 880

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Book Description
Recent Advances in Natural Products Analysis is a thorough guide to the latest analytical methods used for identifying and studying bioactive phytochemicals and other natural products. Chemical compounds, such as flavonoids, alkaloids, carotenoids and saponins are examined, highlighting the many techniques for studying their properties. Each chapter is devoted to a compound category, beginning with the underlying chemical properties of the main components followed by techniques of extraction, purification and fractionation, and then techniques of identification and quantification. Biological activities, possible interactions, levels found in plants, the effects of processing, and current and potential industrial applications are also included. - Focuses on the latest analytical techniques used for studying phytochemical and other biological compounds - Authored and edited by the top worldwide experts in their field - Discusses the current and potential applications and predicts future trends of each compound group

Biochemistry and Function of Sterols

Biochemistry and Function of Sterols PDF Author: Edward J. Parish
Publisher: CRC Press
ISBN: 1000099016
Category : Science
Languages : en
Pages : 289

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Book Description
Leading international scientists bring current and developing topics in sterol research together in Biochemistry and Function of Sterols. The authors are experts in each major area of sterol research-medicine, biochemistry, chemistry, and agriculture. Each chapter features the current state of research as well as new and developing research topics. Throughout the volume the focus is on the major and expanding areas of sterol biochemistry and function of sterols in all classes or organisms. The broad scope of this work embraces many disciplines and will be of interest to a variety of researchers, students, and lay people. Professors will find Biochemistry and Function of Sterols an excellent choice as a textbook for courses on steroid, lipid, or plant biochemistry.

Proceedings of the 8th International Symposium on Insect-Plant Relationships

Proceedings of the 8th International Symposium on Insect-Plant Relationships PDF Author: Steph B.J. Menken
Publisher: Springer Science & Business Media
ISBN: 9401116547
Category : Science
Languages : en
Pages : 415

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Book Description
The papers in this book are organized as follows: insect-plant communities, host-plant selection, genetics and evolution, host-plant resistance and application of transgenic plants, and multitrophic interactions. Besides seven invited papers and a paper with concluding remarks, this volume also contains the short communications of all 115 oral presentations and posters. Included too, are the summaries of four European Science Foundation workshops held over the past two years, where European scientists discussed the state-of-the-art and the future of major topics in insect-plant interactions in order to develop better integrated research programs. The field of insect-plant interactions nowadays includes almost all of biology, as well as parts of chemistry and physics. It takes a central position in biology because insects are the most abundant animal group, half of them are herbivores and they dominate all terrestrial ecosystems. Knowledge of insect-plant interactions is thus fundamental to an understanding of the evolution of life on Earth. Two major topics of worldwide concern give this field an extra dimension. First, large amounts of food crops are still lost due to insect pests. With the increasing concern for environmental pollution and the subsequent plans to drastically reduce pesticides, integrated pest management and development of resistant crops become a major focus in agriculture. The importance of the study of insect-plant relationships is thus continuously augmented. Clearly, successful pest control demands sufficient fundamental knowledge of pest-host interactions. Second, such work can contribute towards stopping or even counterbalancing the threatening biodiversity crisis thanks to an understanding of how the interaction of insects and plants has influenced and still influences the diversification and speciation (evolution) of both groups. These problems should, of course, be approached at a multitrophic level.

Handbook of Dietary Phytochemicals

Handbook of Dietary Phytochemicals PDF 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.

Ecdysone: Structures and Functions

Ecdysone: Structures and Functions PDF Author: Guy Smagghe
Publisher: Springer Science & Business Media
ISBN: 1402091125
Category : Science
Languages : en
Pages : 583

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Book Description
Ecdysone is the steroidal prohormone of the major insect moulting hormone 20-hydroxyecdysone. It groups with its homologues the steroidal molting hormones in arthropods, but they also occur in other phyla where they can play different roles. Besides ecdysteroids appear in many plants mostly as protection agents (toxins or antifeedants) against herbivorous insects. The important developments and achievements in modern ecdysone science since the first edition in 1989 by J. Koolman have led to this new revised, expanded and retitled reference work. New chapters in this edition include RNA interference, the ecdysone receptor crystal structures and structure activity relationships, etc. Each article may also be read independently, as a review of that particular subject. Complete up-to-date coverage of many important topics - the book is divisible into five conceptual areas: (1) Distribution and diversity of ecdysteroids in the two kingdoms is still basis, (2) In the post-genomic era, ecdysteroid genetic hierarchies in insect growth and reproduction, (3) Role of cross talk of genes and growth factors in ecdysteroid titers and signaling, (4) Ecdysteroids function through nuclear and membrane receptors, and (5) Ecdysteroids in modern agriculture, medicine, doping and ecotoxicology. Each of the 23 chapters is written by scientists active in the reviewed research area and a truly distinguished international team of contributors has been chosen. Ecdysone, Structures and Functions will be of immense use and contains essential information for scientists, students, and professionals alike in entomology, endocrinology, physiology, chemistry, and agricultural, plant, biomedicine and environmental sciences.

Insect Taste

Insect Taste PDF Author: Philip Newland
Publisher: Taylor & Francis
ISBN: 1135239002
Category : Science
Languages : en
Pages : 278

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Book Description
Insect Taste offers an accessible overview to some of the many advances in insect taste research. The book covers how insects solve the basic problem of taste gustatory processing, from detection and transduction, through coding to the generation of behavior and the evolutionary biology underpinning gustaory learning.

Contemporary Phytomedicines

Contemporary Phytomedicines PDF Author: Amritpal Singh Saroya
Publisher: CRC Press
ISBN: 1315349949
Category : Health & Fitness
Languages : en
Pages : 383

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Book Description
The term phytomedicine was coined by French physician Henri Leclerc in 1913. Till recently phytomedicine has remained in the background. But due to emerging challenges to the conventional pharmaceutical industry (cost effectiveness and potency of the drugs), phytomedicine has made a dramatic comeback. Phytomedicine has witnessed several changes and several new concepts have been introduced. Phytomedicine, although, a separate discipline, is strongly linked to Phytotherapy and Phytopharmacology. As the title suggests the book is an attempt to bridge the gap between fundamental and emerging concepts in this field of medicine. The book has been divided into two parts. Part A deals with core issues of the phyto-pharmaceutical drug industry. The book begins with an introductory chapter dealing with basic definitions with phytomedicine. Chapters 2-5 narrate emerging subjects such as Phytopharmacovigilance, Phytopharmacoeconomics, Phytopharmacoepidemiology and Phytopharmacogenomics. Chapter 6 discusses ethical issues in phytomedicine. Chapter 7 covers recent advances in drug delivery systems in phytomedicine whereas Chapter 8 is about application of nanotechnology in the field of phytomedicine. The further chapters cover metabolomics, regulatory and legal aspects of the phyto-pharmaceutical drug industry. The chapter on herbal bioavailability enhancing agents is the salient feature of Part-A. Part B is related to applied research in the field of phytomedicine. Experimental findings on phyto-bioactive agents such as withanolides, steroidal alkaloids, phytosteroids and phytocannabinoids have been elaborated. Nine annexures related to herbal drug registration are included.

Studies in Natural Products Chemistry

Studies in Natural Products Chemistry PDF Author:
Publisher: Elsevier
ISBN: 0081000510
Category : Science
Languages : en
Pages : 551

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Book Description
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 the 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. The series also 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. - Focuses on the chemistry of bioactive natural products - Contains contributions by leading authorities in the field - Presents sources of new pharmacophores

Advances in Insect Physiology

Advances in Insect Physiology PDF Author:
Publisher: Elsevier
ISBN: 0323952658
Category : Science
Languages : en
Pages : 240

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Book Description
Advances in Insect Physiology, Volume 63 in this longstanding series, highlights new advances in the field, with this new volume presenting interesting chapters written by an international board of highly qualified authors. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Advances in Insect Physiology series