Antioxidant polymers : synthesis, properties, and applications / / edited by Giuseppe Cirilo and Francesca Iemma

• Record Nr.: UNINA9910807323803321
• Pubbl/distr/stampa: Beverly, MA, : Scrivener; Hoboken, N.J., : Wiley, c2012
• ISBN: 9786613678935; 9781280768163; 1280768169; 9781118445518; 1118445511; 9781118445440; 1118445449; 9781118445488; 1118445481
• Edizione: [1st ed.]
• Descrizione fisica: 1 online resource (522 p.)
• Classificazione: TEC055000
• Altri autori (Persone): CiriloGiuseppe; IemmaFrancesca
• Disciplina: 613.2/86
• Soggetti: Antioxidants; Polymers; Stabilizing agents
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Antioxidant Polymers: Synthesis, Properties, and Applications; Contents; Preface; List of Contributors; 1. Antioxidants: Introduction; 1.1 The Meaning of Antioxidant; 1.2 The Category of Antioxidants and Introduction of often Used Antioxidants; 1.2.1 BHT; 1.2.2 Quercetin; 1.2.3 BHA; 1.2.4 2-tert-Butylhydroquinone (TBHQ); 1.2.5 Gallic Acid; 1.2.6 Resveratrol; 1.2.7 Luteolin; 1.2.8 Caffeic Acid; 1.2.9 Catechin; 1.3 Antioxidant Evaluation Methods; 1.3.1 DPPH Radical Scavenging Assay; 1.3.2 ABTS Radical Scavenging Activity; 1.3.3 Phosphomolybdenum Assay; 1.3.4 Reducing Power Assay; 1.3.5 Total Phenols Assay by Folin-Ciocalteu Reagent1.3.6 Hydroxyl ; Radical Scavenging Assay; 1.3.7 β-carotene-linoleic Acid Assay; 1.3.8 Superoxide Radical Scavenging Assay; 1.3.9 Metal Ion Chelating Assay; 1.3.10 Determination of Total Flavonoid Content; 1.4 Antioxidant and its Mechanisms; 1.4.1 Mechanism of Scavenging Free Radicals; 1.4.2 Mechanism of Metal Chelating Properties; 1.5 Adverse Effects of Antioxidants; References; 2. Natural Polyphenol and Flavonoid Polymers; 2.1 Introduction; 2.2 Structural Classification of Polyphenols; 2.2.1 Simple Phenolics; 2.2.2 Stilbenes; 2.2.3 Lignin; 2.2.4 Flavonoids2.2.5 Tannins; 2.3 Polyphenol Biosynthesis and Function in Plants; 2.3.1 Biosynthesis; 2.3.2 Protective Roles; 2.4 Tannins in Human Nutrition; 2.4.1 Dietary Sources and Intake; 2.4.2 Absorption and Metabolism; 2.5 Antioxidant Activity of Tannins; 2.5.1 Mechanisms; 2.5.2 Structure-activity Relationships; 2.6 Protective Effects of Proanthocyanidins in Human Health; 2.7 Conclusion; Acknowledgements; References; 3. Synthesis and Applications of Polymeric Flavonoids; 3.1 Introduction; 3.2 Polycondensates of Catechin with Aldehydes; 3.3 Enzymatically Polymerized Flavonoids; 3.4 Biopolymer-flavonoid Conjugates3.5 Conclusion; References; 4. Antioxidant Polymers: Metal Chelating Agents; 4.1 Introduction; 4.1.1 Antioxidants; 4.1.2 Natural Polymers as Antioxidants; 4.1.3 Chelating Polymers and Heavy Metal Ions; 4.2 Chitin and Chitosan; 4.2.1 Chitin and Chitosan Derivatives; 4.2.2 Chitin and Chitosan as Chelating Agents; 4.3 Alginates; 4.4 Chelation Studies; 4.4.1 Chitosan Derivatives as Chelating Agents; 4.4.2 Alginates as Chelating Agents; 4.5 Conclusions; References; 5. Antioxidant Polymers by Chitosan Modification; 5.1 Introduction; 5.2 Chitosan Characteristics; 5.3 Reactive Oxygen Species and Chitosan as Antioxidant5.4 Structure Modifications; 5.4.1 N-Carboxymethyl Chitosan Derivatives; 5.4.2 Quaternary Salts; 5.4.3 Sulphur Derivatives; 5.4.4 Chitosan Containing Phenolic Compounds; 5.4.5 Schiff Bases of Chitosan; 5.5 Conclusion; References; 6. Cellulose and Dextran Antioxidant Polymers for Biomedical Applications; 6.1 Introduction; 6.2 Antioxidant Polymers Cellulose-based; 6.2.1 Cellulose; 6.2.2 Antioxidant Biomaterials Carboxymethylcellulose-based; 6.2.3 Ferulate Lipoate and Tocopherulate Cellulose; 6.2.4 Cellulose Hydrogel Containing Trans-ferulic Acid
• Sommario/riassunto: Antioxidant Polymers is an exhaustive overview of the recent developments in the field of polymeric materials showing antioxidant properties. This research area has grown rapidly in the last decade because antioxidant polymers have wide industry applications ranging from materials science to biomedical, pharmaceuticals and cosmetics.