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Polyphenolic Antioxidants from Agri-Food Waste Biomass

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ISBN: 9783039286744 / 9783039286751 Year: Pages: 168 DOI: 10.3390/books978-3-03928-675-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2020-06-09 16:38:57
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The re-use of industrial food residues is essential in the general framework of rational waste handling and recycling, which aims at the minimizing environmental impact of food production and producing functional food ingredients. Agri-food processing waste has long been considered a valuable biomass with a significant polyphenol load and profile. Polyphenols, aside from being powerful antioxidants that confer inherent stability to a variety of foods, may possess versatile bioactivities including anti-inflammatory and chemopreventive properties. The valorization of agri-food waste as a prominent source of polyphenols stems from the enormous amount of food-related material discharged worldwide and the emerging eco-friendly technologies that allow high recovery, recycling, and sustainable use of these materials. This book addresses the concept of recovering natural polyphenolic antioxidants from waste biomass generated by agri-food and related industrial processes and presents state-of-the-art applications with prospect in the food, cosmetic, and pharmaceutical industries.

Special Issue Dedicated to Late Professor Takuo Okuda. Tannins and Related Polyphenols Revisited: Chemistry, Biochemistry and Biological Activities

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ISBN: 9783038978343 9783038978350 Year: Pages: 316 DOI: 10.3390/books978-3-03897-835-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2019-06-26 10:09:00
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Antioxidative polyphenols represented by tannins and flavonoids are rich in numerous food sources and traditional natural medicines and currently attracting increased attention in health care and food industries because of their multiple biological activities that are favorable to human health. Commemorating the outstanding achievements on tannins by Dr. Takuo Okuda on the occasion of his passing away in December 2016, his colleagues, friends, and worldwide experts of polyphenol research have contributed 18 papers on their recent study to the Special Issue of Molecules. This book is its reprinted form. This covers reviews of structural features, historical usages, and biological activities of unique class of ellagitannins and condensed tannins, and original articles on the most up-to-date findings on the anticancer effect of green tea catechins, the antivirus effect of tannins comparing with the clinically used drugs, the analytical method of ellagitannins using quantitative NMR, the chemical structures of Hydrangea-blue complex (pigment) and condensed tannins in Ephedra sinica and purple prairie clover, and the relationship of condensed tannins in legumes and grape-marc with methane production in the in vitro ruminant system, and others. This book will be useful to natural product chemists and also to researchers in pharmaceutical and/or food industry.

Keywords

Dittrichia viscosa --- antifungal activities --- Candida spp. --- Malassezia spp. --- Microsporum canis --- Aspergillus fumigates --- Ephedra sinica --- proanthocyanidin --- oligomer --- thiolysis --- phloroglucinolysis --- TDDFT --- ECD --- neuraminidase --- inhibition --- tannins --- oseltamivir carboxylate --- zanamivir --- crystal structure --- molecular interactions --- oenothein B --- ellagitannin --- macrocyclic oligomer --- Onagraceae --- Myrtaceae --- Lythraceae --- antioxidants --- antitumor effect --- immunomodulatory effect --- anti-inflammation --- tannin composition --- purple prairie clover --- conservation method --- protein precipitation --- Escherichia coli --- Cynanchum wilfordii --- phenolic glycoside --- 2-O-?-laminaribiosyl-4-hydroxyacetophenone --- cynandione A --- thin layer chromatography --- Cynanchum auriculatum --- Acacia mearnsii bark --- wattle tannin --- proanthocyanidins --- biological activities --- tannins --- vegetable tanning --- European historic leathers --- colorimetric tests --- spectroscopy --- UV-Vis --- FTIR --- triple-negative breast cancer --- fatty acid synthase --- FASN inhibition --- polyphenolic FASN inhibitors --- (?)-epigallocatechin 3-gallate --- synthetic analogues --- apoptosis --- anticancer activity --- 1H-NMR --- quantitative NMR --- ellagitannin --- Geranium thunbergii --- geraniin --- Aluminum ion --- blue color development --- 5-O-caffeoylquinic acid --- 3-O-glucosyldelphinidin --- Hydrangea macrophylla --- ESI-mass --- metal complex --- Coreopsis lanceolata L. --- chalcone --- flavanone --- flavonol --- aurone --- Horner–Wadsworth–Emmons reaction --- condensed tannin --- bioactivity --- methanogenesis --- grape marc --- fatty acids --- in vitro batch fermentation --- neuroprotection --- PC12 --- NGF --- differentiation --- amyloid-? peptide --- taxanes --- hormesis --- polyphenol --- bamboo leaf extract --- overlay method --- ellagitannin --- structure --- revision --- (?)-epigallocatechin gallate --- immune checkpoint --- interferon-? --- epidermal growth factor --- lung tumor --- proanthocyanidins --- condensed tannins --- thiolysis --- NMR spectroscopy --- ultrahigh-resolution negative mode MALDI-TOF mass spectrometry --- antioxidant --- ORAC assay --- Acacia --- forage legume --- Trapa taiwanensis Nakai --- hydrolysable tannin --- stability --- gallotannin --- ellagitannin

Biomass Chars: Elaboration, Characterization and Applications ?

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ISBN: 9783039216628 9783039216635 Year: Pages: 342 DOI: 10.3390/books978-3-03921-663-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Agriculture (General) --- Biology --- Science (General)
Added to DOAB on : 2019-12-09 11:49:15
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Biomass can be converted to energy, biofuels, and bioproducts via thermochemical conversion processes, such as combustion, pyrolysis, and gasification. Combustion technology is most widely applied on an industrial scale. However, biomass gasification and pyrolysis processes are still in the research and development stage. The major products from these processes are syngas, bio-oil, and char (called also biochar for agronomic application). Among these products, biomass chars have received increasing attention for different applications, such as gasification, co-combustion, catalysts or adsorbents precursors, soil amendment, carbon fuel cells, and supercapacitors. This Special Issue provides an overview of biomass char production methods (pyrolysis, hydrothermal carbonization, etc.), characterization techniques (e.g., scanning electronic microscopy, X-ray fluorescence, nitrogen adsorption, Raman spectroscopy, nuclear magnetic resonance spectroscopy, X-ray photoelectron spectroscopy, and temperature programmed desorption and mass spectrometry), their properties, and their suitable recovery processes.

Keywords

biomass production --- multicriteria model --- ELECTRE III --- combustion --- oxygen enrichment --- low-rank coal char --- char oxidation --- reaction kinetics --- salty food waste --- FT-IR --- pyrolysis --- biochar --- NaCl --- hydrothermal carbonization --- anaerobic digestion --- poultry slaughterhouse --- sludge cake --- energy recovery efficiency --- gasification --- kinetic model --- active site --- chemisorption --- hydrothermal carbonization (HTC) --- Chinese reed --- biocrude --- biochar --- high heating value (HHV) --- biochar --- steam --- gasification --- chemical speciation --- AAEMs --- underground coal gasification --- ash layer --- effective diffusion coefficient --- internal diffusion resistance --- pyrolysis --- hydrothermal carbonization --- biochar engineering --- porosity --- nutrients --- polycyclic aromatic hydrocarbon (PAH) --- nitrogen --- biomass --- amino acid --- pyrrole --- NOx --- pyrolysis --- grape marc --- kinetic models --- characterization --- pyrolysis --- Texaco pilot plant --- reactor modelling --- ash fusion temperature (AFT) --- melting phenomenon --- food waste compost --- sawdust --- pyrolysis --- biochar --- thermogravimetric analysis (TGA) --- calorific value --- biogas purification --- coconut shells --- biomass valorization --- textural characterization --- adsorption isotherms --- breakthrough curves --- olive mill solid wastes (OMSWs) --- fixed bed combustor --- pellets --- combustion parameters --- gaseous emissions --- waste wood --- interactions --- interferences --- partial combustion reaction in gasification --- Boudouard reaction in gasification --- MTDATA --- biomass --- steam gasification --- kinetics --- pyrolysis conditions --- thermogravimetric analysis --- characteristic time analysis --- biomass --- combustion --- thermogravimetric analysis --- kinetic parameters --- thermal characteristics --- food waste --- food-waste biochar --- pyrolysis --- NaCl template --- desalination --- biochar --- ash from biomass --- giant miscanthus --- fertilisation --- CO2 adsorption --- CH4 adsorption --- biomass --- activated carbon --- n/a

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