Polyphenols in Plants: Isolation, Purification and Extract Preparation

Polyphenols in Plants: Isolation, Purification and Extract Preparation provides insight into how the polyphenols that occur naturally in plants can be affected during growth and development, and then effectively removed and optimized, before being implemented in food production.

Historically plants have been the major sources for drugs and health promotion. There are a small number of nutrients. However the growing focus is on the very diverse, complex ring structures, polyphenols that are not nutritious. To study or use them in patient treatment the polyphenols need to be isolated, identified, and purified for use and study. This book will bring together experts that will update their continuing study of ways to isolate and purify polyphenols as well as determine their structures and composition. In addition some will update their previous summaries with new research by others as well as themselves.

Plant scientists and dietary supplement producers will be particularly interested in assessing polyphenol content and factors impacting their composition, to select sources and regulate environmental conditions affecting yield for more consistent and functional dietary supplements.

Fully revised and updated with 12 new chapters including extraction optimization, additional plant varieties and recent technology advancesDevelops understanding of isolation, characterization and identification of critical polyphenols vital to industrial development as therapiesDefines conditions of growth affecting the polyphenol levelsDescribes assay and instrumentation techniques critical to identifying and defining polyphenols, vital to researchers and business developmentProvides insights into potential dangers and importance to the dietary supplement industry, government regulators and lay public users

Section 1: Modification by Plant Growth and Environment 1. Not only what is food is good – polyphenols from edible and non-edible vegetable waste 2. Polyphenols in agricultural by-products and food waste 3. Phenolic natural compounds and their influence on physiological processes in plants 4. Improving bioavailability of polyphenols using nano-delivery systems based on food polymers 5. Plant phenolics in foods

Section 2: Isolation and Analysis of Polyphenol Structure 6. Structure and antioxidant efficiency of beech (Fagus sylvatica L.) bark polyphenols unravelled by high-performance liquid chromatography/photodiode array detection/multistage electrospray mass spectrometry and chemometrics 7. Characterization and Quantification of Polyphenols in Fruits 8. Phenotypic diversity of colored phytochemicals in sorghum accessions with various pericarp pigments 9. Relevance and analysis of citrus flavonoids 10. Extraction methods of polyphenol from grapes 11. Total polyphenols content and antioxidant DPPH assays on biological samples 12. Extraction phenolic compounds from Coriandrum sativum L. and Amaranthus hybridus L. by microwave technology 13. Curcumin/turmeric as an environment-friendly stain for proteins on acrylamide gels 14. Anthocyanins and other polyphenols in citrus genus: Biosynthesis, chemical profile, and biological activity 15. Rice phenolics: extraction, characterization and utilization in foods

Section 3: Analysis Techniques for Polyphenols 16. Gas chromatography - mass spectrometry analysis of polyphenols in foods 17. Reaction of Hemoglobin with the Schiff base intermediate of the Glucose/Asparagine reaction: Formation of a Hemichrome 18. Adsorption and ion exchange for the recovery and fractionation of polyphenols – Principles and applications 19. Flavonoids from Holarrhena floribunda (G.don) leaves 20. HILIC chromatography- Powerful technique in the analysis of polyphenols 21. Chromatographic analysis of polyphenols 22. Preparative purification of polyphenols from sweet potato (Ipomoea batatas L.) leaves by AB-8 macroporous resin 23. Evaluation of the phytochemistry and biological activity of grape (Vitis vinifera L.) stems: towards a sustainable winery industry 24. The phenolic gingerols and gingerol-derived shogaols: features and properties related to the prevention and treatment of cancer and chronic inflammation 25. Polyphenols presents in campomanesia genus: Pharmacological and nutraceutical approach