Chemical evaluation, isolation and characterization of antioxidants from two lesser-known edible mushrooms: Pleurotus eryngii and Agrocybe aegerita.

Lo Kit Man. ; Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. ; Includes bibliographical references (leaves 193-208). ; Abstracts in English and Chinese. ; THESIS COMMITTEE --- p.i ; ACKNOWLEDGEMENTS --- p.ii ; ABSTRACT --- p.iii ; ABSTRACT (Chinese version) --- p.v ; CONTENT --- p.vii ; LIST OF TABLES --- p.xiii ; LIST OF FIGURES --- p.xviii ; LIST OF ABBREVIATIONS --- p.xx ; Chapter CHAPTER 1: --- INTRODUCTION --- p.1 ; Chapter 1.1 --- An introduction of natural antioxidants --- p.1 ; Chapter 1.1.1 --- Definition of antioxidants --- p.1 ; Chapter 1.1.2 --- Application of natural antioxidants in foods --- p.3 ; Chapter 1.1.2.1 --- Oxidation of foods --- p.3 ; Chapter 1.1.2.1.1 --- Autoxidation of food --- p.3 ; Chapter 1.1.2.1.2 --- Photo-oxidation of food --- p.4 ; Chapter 1.1.3 --- Free radicals and antioxidants --- p.6 ; Chapter 1.1.3.1 --- Free radicals and reactive oxygen species --- p.6 ; Chapter 1.1.3.1.1 --- Superoxide anion radical --- p.8 ; Chapter 1.1.3.1.2 --- Hydrogen peroxide --- p.9 ; Chapter 1.1.3.1.3 --- Hydroxyl radical --- p.10 ; Chapter 1.1.3.1.4 --- Peroxyl radical --- p.12 ; Chapter 1.1.3.1.5 --- Lipid peroxidation of cell membranes --- p.13 ; Chapter 1.1.3.1.6 --- Oxidation of LDL and atherosclerosis --- p.16 ; Chapter 1.1.4 --- Natural antioxidants and their mechanisms --- p.18 ; Chapter 1.1.4.1 --- Carotenoids --- p.18 ; Chapter 1.1.4.2 --- Phenolic compounds --- p.20 ; Chapter 1.1.4.2.1 --- Flavonoids --- p.21 ; Chapter 1.1.4.2.2 --- Phenolic acids --- p.22 ; Chapter 1.1.4.3 --- Sterols --- p.24 ; Chapter 1.1.4.4 --- Vitamins --- p.25 ; Chapter 1.2 --- Antioxidant in mushrooms --- p.27 ; Chapter 1.2.1 --- Antioxidant properties of mushrooms --- p.27 ; Chapter 1.2.2 --- Characterization of mushroom phenolic antioxidants --- p.30 ; Chapter 1.2.3 --- Biosynthesis of phenolic compounds in mushrooms or fungi --- p.33 ; Chapter 1.3 --- Assays for evaluation of antioxidants --- p.35 ; Chapter 1.3.1 --- Beta-carotene bleaching method --- p.35 ; Chapter 1.3.2 --- Scavenging activity of ...