Results 81 to 90 of about 46,001 (228)

Desenvolvimento de métodos analíticos em GC-FID, CE-UV e LC-MS/MS no estudo fitoquímico de triterpenos, flavonóis e taninos voltado para a obtenção de uma nova cultivar de Maytenus ilicifolia (espinheira-santa) [PDF]

open access: yes, 2014
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2014.Esta tese tem como proposta principal o desenvolvimento de novos métodos analíticos para a ...
Vistuba, Jacqueline Pereira
core  

Thermal degradation study of vegetable tannins and vegetable tanned leathers [PDF]

open access: yes, 2018
In this study, hydrolyzable tannins (commercial chestnut, valonea and tara extracts), condensed tannins (commercial quebracho and mimosa extracts) as well as calf leathers produced using these vegetable tanning agents were characterized by thermal ...
Jakab, Emma   +5 more
core   +1 more source

Bridging Flavour and Fragrance: A Behaviour‐Based Olfactory Pyramid for Whisky Maturation Inspired by Perfumery Principles

open access: yesFlavour and Fragrance Journal, EarlyView.
This framework transposes the perfumery olfactory pyramid to whisky maturation by sequencing aromas into top, heart, and base notes according to their temporal persistence. Using Log P as a behaviour‐based classification axis and oak macromolecules as natural fixative analogues, it proposes a behaviour‐based aromatic wheel bridging flavour chemistry ...
Magali Picard
wiley   +1 more source

Reassessment of the roles of the peritrophic envelope and hydrolysis in protecting polyphagous grasshoppers from ingested hydrolyzable tannins [PDF]

open access: yes, 1996
We examined several of the mechanisms that have been reported to enable polyphagous grasshoppers (Orthoptera: Acrididae) to tolerate ingested hydrolyzable tannins: hydrolysis, adsorption on the peritrophic envelope, and peritrophic envelope ...
Barbehenn, Raymond V.   +2 more
core   +1 more source

The Genus Terminalia (Combretaceae): An Ethnopharmacological, Phytochemical and Pharmacological Review

open access: yesNatural Products and Bioprospecting, 2019
Terminalia Linn, a genus of mostly medium or large trees in the family Combretaceae with about 250 species in the world, is distributed mainly in southern Asia, Himalayas, Madagascar, Australia, and the tropical and subtropical regions of Africa.
Xiao-Rui Zhang   +5 more
doaj   +1 more source

Salt‐induced nutritional and metabolic shifts in halophytes: implications for food security

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Plant species vary in their response to salinity: some crops show a degree of salt tolerance, while halophytes – whether wild or cultivated – are characterized by a high capacity to thrive under saline conditions. Halophytes are considered a source of valuable secondary metabolites with potential economic value, yet they might also produce ...
Giulia Atzori   +9 more
wiley   +1 more source

Polyphenols from Trapa bispinosa Roxb. pericarp extract with inhibitory activities against amyloid-β aggregation and acetylcholinesterase

open access: yesResults in Chemistry
This study focused on the isolation and structural characterization of three known galloyl glucoses (1, 3, and 4) and a new monomeric ellagitannin, trabisnin (16), from the Trapa bispinosa Roxb. pericarp extract (TBPE).
Yuji Iwaoka   +6 more
doaj   +1 more source

Breaking polyphenol–polysaccharide interactions: the promising role of natural deep eutectic solvents

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Food processing generates substantial amounts of byproducts rich in valuable bioactive compounds, particularly polyphenols, known for their antioxidant, anti‐UV, and antimicrobial properties. These molecules hold great potential in sectors such as food, cosmetics, and pharmaceuticals.
Paul Sauvetes   +2 more
wiley   +1 more source

Oenological Tannins from Different Sources and Their Impact on Color and Phenolic Evolution of a Rosé Wine

open access: yesBeverages
This study evaluates the impact of eight commercial oenological tannins—sourced from grape seed, grape skin, cherry, quebracho, acacia, tara, chestnut, and oak—on the phenolic composition and color evolution of a rosé wine during oxidative storage.
Federico Baris   +3 more
doaj   +1 more source

Polyphenol dietary supplementation prevents inflammation‐induced muscle atrophy in a zebrafish (Danio rerio) model

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Diet‐induced inflammation is a major cause of muscle degeneration impacting human and animal health. Owing to their anti‐inflammatory and antioxidant properties, polyphenols have attracted considerable interest as feed additives.
Graziella Orso   +8 more
wiley   +1 more source

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