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The constituents of medicinal plants - Pengelly A.

The constituents of medicinal plants

Author: Pengelly A.
Publishers: London
Year of publication: 2001
Number of pages: 109
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Download: theconstituents2001.djvu

THE CONSTITUENTS OF
MEDICINAL PLANTS
An Introduction to the Chemistry & Therapeutics of Herbal Medicines
Andrew Pengelly
Medical Herbalist
Photo left: Hypericum perforatum Photo front: Inuki helenium
This book is the first in Australia - and one of the few in the English speaking world - to explain in simple terms the commonly occurring chemical constituents of medicinal plants. It is primarily aimed as a text book for students of herbal medicine, however it is also an invaluable point of reference for all those with an interest in how medicinal plants work.
The book includes approximately 100 diagrams of chemical structures, as well as comprehensive references to original research studies and clinical trials. Unlike many texts in this field The Constituents of Medicinal Plants is written by a practicing herbalist, with first hand experience of the actions and possible risks associated with the use of the healing plants.
Sunflower Herbals
THE CONSTITUENTS OF MEDICINAL PLANTS
An Introduction to the Chemistry
&
Therapeutics of Herbal Medicines
Andrew Pengelly
Medical Herbalist
Sunflower Herbals 2nd Edition
CONTENTS
CHAPTER 1
CHAPTER 2
CHAPTER 3
CHAPTER 4
INTRODUCTION TO PHYTOCHEMISTRY 1
Phytochemical basis of herbal medicines Understanding organic chemistry Primary & secondary metabolites Isomerism Organic acids
Acyclic, cyclic and heterocyclic compounds Functional groups
PHENOLS & TANNINS 7
Simple Phenols
Phenylpropanoids
Salicylates and salicins
Lignans
Coumarins
Quinones
Tannins
Miscellaneous phenolic compounds
*
GLYCOSIDES 20
Introduction to glycosides Cyanogenic glycosides Cardiac glycosides Phenylpropanoid glycosides Anthraquinones Flavonoids & Anthocyanins Glucosinolates Iridoid glycosides
POLYSACCHARIDES 36
Gums and mucilages lmmunostimulating polysaccharides Miscellaneous polysaccharides
CHAPTER 5 TERPENOIDS & SAPONINS
Terpenoids
Monoterpenes
Iridoids
Sesquiterpenes
Sesquiterpene lactones
Diterpenes
Triterpenes
Phytosterols
Saponins
Therapeutic action of saponins
CHAPTER 6 OILS & RESINS
Essential oils Resins Fixed oils
CHAPTER 7 ALKALOIDS
Introduction to alkaloids Pyridine-piperidine alkaloids Quinoline alkaloids Isoquinoline alkaloids Tropane alkaloids Quinolizidine alkaloids Pyrrolizidine alkaloids Indole alkaloids Steroidal alkaloids Alkaloidal amines Purine alkaloids
BIBLIOGRAPHY
INDEX
Foreword
The herbal renaissance has been taking place throughout the Western world arguably over the last 25 years. Over that period of time herbal medicine has moved from a strong empirical basis to its present position as an increasingly scientifically based system of healing, increasingly referred to as phytotherapy.With the development of the scientific explanation of herbal medicine has come increased credibility and acceptance for it as a system of healing applicable to contemporary society. Andrew Pengelly’s book, THE CONSTITUENTS OF MEDICINAL PLANTS - An Introduction to the Chemistry & Therapeutics of Herbal Medicines is a significant contribution to the modem day scientific explanation of herbal medicine and as such has made a significant contribution to this increased credibility and acceptance of herbal medicine.
As a long standing graduate of Southern Cross Herbal School, with many years of professional practice as a medical herbalist and as a lecturer on herb identification and introductory pharmacognosy, Mr Pengelly is eminendy qualified to write a text such as the above. The book will be particularly suitable to those undertaking professional level studies in herbal medicine or to those in the natural drug industry who seek fundamental information on the phytochemistry of medicinal herbs.
I am delighted and honoured to write this foreword for Mr Pengelly’s book and I commend it highly to all those who are interested in understanding the scientific basis of herbal medicine.
Denis Stewart
Medical Herbalist
Director and Senior Lecturer of
Southern Cross Herbal School, Australia
Acknowledgements
Completion of this text book would not have been possible without the contributions and assistance of several people.
I am indebted to Anne Cowper for reading and commenting on the original manuscript, and for the general editorial work carried out. Hans Wohlmuth gave invaluable assistance with the chemical formula diagrams. I also wish to thank the National Herbalist Association of Australia for giving me the use of their excellent library resources and their general support.
By introducing a comprehensive herbal pharmacognosy course the Newcastie College of Herbal Medicine acknowledged the need for a high standard of understanding in this field of education amongst graduate herbalists, in the process giving me the opportunity to write the course material from which this book has developed. For this I would like to thank the principal and school founder Nancy Evelyn.
I am forever indebted to the Southern Cross Herbal School and its director Denis Stewart for my herbal education and for introducing the teaching of pharmacognosy in Australia.
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