Therapeutic Use of Medicinal Plants and their Extracts: Volume 2
Therapeutic Use of Medicinal Plants and their Extracts: Volume 2

Author: A.N.M. Alamgir

Publisher: Springer

Published: 2019-02-14

Total Pages: 0

ISBN-13: 9783030064235

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This book starts with a general introduction to phytochemistry, followed by chapters on plant constituents, their origins and chemistry, but also discussing animal-, microorganism- and mineral-based drugs. Further chapters cover vitamins, food additives and excipients as well as xenobiotics and poisons. The book also explores the herbal approach to disease management and molecular pharmacognosy and introduces methods of qualitative and quantitative analysis of plant constituents. Phytochemicals are classified as primary (e.g. carbohydrates, lipids, amino acid derivations, etc.) or secondary (e.g. alkaloids, terpenes and terpenoids, phenolic compounds, glycosides, etc.) metabolites according to their metabolic route of origin, chemical structure and function. A wide variety of primary and secondary phytochemicals are present in medicinal plants, some of which are active phytomedicines and some of which are pharmaceutical excipients.

Risk Analysis for Process Plant, Pipelines and Transport
Risk Analysis for Process Plant, Pipelines and Transport

Author: J.R. Taylor

Publisher: Routledge

Published: 2003-09-02

Total Pages: 447

ISBN-13: 1135824274

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Risk Analysis for Process Plants, Pipelines and Transport gives a detailed description of practical risk and safety analysis methods, tried and tested in over 100 process industry projects. The aim is to provide the methods and data needed by practising safety engineers, as well as practical advice on how to use them.

Phenolic Compounds
Phenolic Compounds

Author: Marcos Soto-Hernández

Publisher: BoD – Books on Demand

Published: 2017-03-15

Total Pages: 458

ISBN-13: 9535129570

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Phenolic compounds as a large class of metabolites found in plants have attracted attention since long time ago due to their properties and the hope that they will show beneficial health effects when taken as dietary supplements. This book presents the state of the art of some of the natural sources of phenolic compounds, for example, medicinal plants, grapes or blue maize, as well as the modern methods of extraction, quantification, and identification, and there is a special section discussing the treatment, removal, and degradation of phenols, an important issue in those phenols derived from the pharmaceutical or petrochemical industries.

Moderne Methoden der Pflanzenanalyse / Modern Methods of Plant Analysis
Moderne Methoden der Pflanzenanalyse / Modern Methods of Plant Analysis

Author: K. Paech

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 774

ISBN-13: 3642649580

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If, following the solvent extraction of a hydrocarbon from a plant, it is not known whether it is one or the other, a method of distinguishing the two is described by HENDRICKS, WILDMAN and JONES (1946). The technique involves the infra-red absorption spectra of the two isomers. At about 12 mp. the relative absorption coefficient of rubber is 42% greater than for gutta. ScHLESINGER and LEPER (1951) describe two procedures for separation of the rubber and gutta hydrocarbons from large quantities of crude chicle. In one, the chicle is extracted with benzene which dissolves both isomers. An excess absolute ethyl acetate is added and the mixture stored at 5° C overnight. The gutta precipitates out and the rubber remains in solution. The other method is as follows: (1) Ten grams of chicle are extracted with acetone for 24 hours in a Soxhlet extraction apparatus. (2) The insoluble material in the thimble is allowed to .. it dry, then immersed in 150 ml. of cold Skellysolve B in a refrigerator at 10° C and· allowed to stand for 48 hours with occasional agitation. (3) The thimble is then removed from the solvent and the enclosed residue washed several times with fresh, cold Skellysolve B. (4) An excess of acetone and a few drops of a concentrated aqueous solution of sodium iodide are added to the combined Skellysolve B extract and washings and allowed to stand overnight in a refrigerator.