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3 results in Chemistry and Pharmacology of Natural Products

Plant Lectins
  • A. Pusztai
  • Published online:
    05 February 2012
    Print publication:
    06 February 1992
  • This volume surveys the chemistry, biochemistry, biosynthesis, metabolism and pharmacological properties of lectins. Lectins, which are most commonly found in plants, are widespread natural products with striking biological activities. Their specific ability to recognise and bind to simple or complex saccharides facilitates their role as effective information protein molecules. As agents of cell-to-cell recognition, lectins promote symbiosis between plants and specific nitrogen-fixing soil bacteria. As natural defensive molecules, they can protect plants against predators such as bacteria, fungi and insects. As part of our diet, lectins are powerful exogenous growth factors in the small intestine and influence our health, the digestive function and the bacterial ecology of the alimentary tract. Lectins are also important research tools in preparative biochemistry and cell science.

Lignans
  • Chemical, Biological and Clinical Properties
  • David C. Ayres, John D. Loike
  • Published online:
    05 February 2012
    Print publication:
    30 November 1990
  • Lignans are widely occurring plant compounds and are closely related to lignin, which forms the woody component of trees and other plants. The lignans are characterized by their dimeric composition from cinnamic acids, and they are attracting increasing attention as a result of their pharmacological properties. The volume surveys the chemical, biological and clinical properties of lignans as well as providing information on their isolation, purification, identification and chemical synthesis. The volume also explores fully the potential use of these compounds as antiviral and antitumour agents, and thus provides a wide-ranging survey of their pharmacology and chemistry. The text is fully documented and referenced and provides the only up-to-date compilation on this subject. The volume is suitable for research scientists in the fields of organic chemistry, biochemistry, oncology, pharmacology, toxicology and botany.

Saponins
  • K. Hostettmann, A. Marston
  • Published online:
    19 October 2009
    Print publication:
    11 May 1995
  • This is the first comprehensive monograph to look in depth at saponins. Saponins are glycosides of triterpenes, steroids or steroid alkaloids which have a very wide distribution in plants and some marine organisms. Their biological activity includes haemolysis and fish poisoning, and the steroid saponins are essential for the manufacture of oral contraceptives and sex hormones. Saponins have also been exploited commercially as soap substitutes and in several other industrial applications. This book gives detailed information on the occurrence and distribution of saponins, their structural types, isolation, analysis and structure determination. Biological and pharmacological activities are discussed, as are aspects of commercial and industrial use. The volume provides a valuable source of data for the different classes of compound and includes and extensive list of references.