Results 71 to 80 of about 5,958,372 (224)

Geometrical isomerization of hydroxycinnamic acid under UV‐light: Structural plasticity as a driver of metabolite complexity

Photochemistry and Photobiology, EarlyView.
UV irradiation drives metabolite complexity through photoisomerization of hydroxycinnamic acid‐containing compounds in plants. The olefin functional group of hydroxycinnamic acid enables structural plasticity through trans/cis isomerization. Multiple chromophores within a molecule can amplify UV‐induced transformations.
Mailane Rose Sekgobela, Lutendo Michael Mathomu, Nakisani Babra Moyo, Rudzani Nemadzhilili, Mwadham Mwombeki Kabanda, Ntakadzeni Edwin Madala   +5 more
wiley   +1 more source

Green coffee bean extract and 5-O-caffeoylquinic acid regulate fat metabolism in Caenorhabditis elegans

Journal of Functional Foods, 2018
Green coffee bean extract (GCBE) and chlorogenic acids are known to be associated with weight loss. 5-O-caffeoylquinic acid (5-CQA) is the main form of chlorogenic acid in GCBE.
Renalison Farias-Pereira, J. Oshiro, Kee-Hong Kim, Yeonhwa Park   +3 more
semanticscholar   +1 more source

HPLC–DAD of phenolics in bryophytes Lunularia cruciata, Brachytheciastrum velutinum and Kindbergia praelonga [PDF]

Journal of the Serbian Chemical Society, 2008
The chemistry of bryophytes is not well known. The available data indicate interesting chemical constitutions of some bryophyte species, i.e., active and new compounds are to be found within bryophytes, especially liverworts. In this study, one liverwort
NEBOJSA JOCKOVIC, PAULA B. ANDRADE, PATRÍCIA VALENTÃO, MARKO SABOVLJEVIC   +3 more
doaj   +3 more sources

The effects of a (poly)phenol‐rich food intervention on markers of exercise‐induced inflammation and oxidative stress: A randomised controlled trial

Experimental Physiology, EarlyView.
Abstract This study examined whether consuming a (poly)phenol‐rich food before strenuous muscle‐damaging exercise can modify post‐exercise markers of inflammation and oxidative stress. Using a double‐blinded, randomised, placebo‐controlled, between‐subjects design, 26 recreationally active males (n = 15) and females (n = 11) consumed higher‐(poly ...
Abrar Al Hebshi, Josh Thorley, Ana Rodriguez‐Mateos, Zicheng Zhang, Lewis J James, Tom Clifford   +5 more
wiley   +1 more source

The Study of Anti-/Pro-Oxidant, Lipophilic, Microbial and Spectroscopic Properties of New Alkali Metal Salts of 5-O-Caffeoylquinic Acid

International Journal of Molecular Sciences, 2018
Lithium, sodium, potassium, rubidium and caesium salts of 5-O-caffeoylquinic acid (chlorogenic acid, 5-CQA) were synthesized and described by FT-IR (infrared spectroscopy), FT-Raman (Raman spectroscopy), UV (UV absorption spectroscopy), 1H (400.15 MHz ...
M. Kalinowska, E. Bajko, M. Matejczyk, P. Kaczyński, B. Łozowicka, W. Lewandowski   +5 more
semanticscholar   +1 more source

Characterization of Grape Cane Stilbenoids and Their Photo‐Degradation Products by HPLC‐DAD Coupled With Trapped Ion Mobility Spectrometry and High‐Resolution Tandem Mass Spectrometry

Rapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.
ABSTRACT Rationale Bioactive (E)‐stilbenoids in vine extracts are prone to light‐induced transformation into the respective (Z)‐isomers and further degradation products, often resulting in a loss of bioactivity. We sought to study stilbenoid degradation beyond that of the well‐researched resveratrol due to the high diversity of stilbenoids in nature ...
Paul Besrukow, Friederike A. Schnitker, Ralf Schweiggert, Christof B. Steingass   +3 more
wiley   +1 more source

TNF-α-induced oxidative stress and endothelial dysfunction in EA.hy926 cells is prevented by mate and green coffee extracts, 5-caffeoylquinic acid and its microbial metabolite, dihydrocaffeic acid

International Journal of Food Science and Nutrition, 2018
The main phenol in mate and coffee, 5-caffeoylquinic-acid (5-CQA), and its relevant microbial metabolites, dihydrocaffeic (DHCA) and dihydroferulic (DHFA) acids, have shown oxidative-stress protective effects in HepG2 cells.
Shenli Wang, B. Sarriá, R. Mateos, L. Goya, Laura Bravo-Clemente   +4 more
semanticscholar   +1 more source

Recent Advances in Biosynthesis and Bioactivity of Plant Caffeoylquinic Acids

Current Issues in Molecular Biology
Caffeoylquinic acids (CQAs), a class of phenolic acid metabolites widely distributed in plants, encompass 15 positional isomers from mono- to tetra-esters, with 5-O-caffeoylquinic acid (5-CQA) as the predominant form. The biosynthesis of 5-CQA from phenylalanine proceeds through five primary pathways, which are finely regulated by environmental ...
Hanqin Chen, Bo Pan, Shilong Zhang, Xin Li, Yuyao Zhang, Kang Gao, Dongliang Chen, Lili Wang, Tianhua Jiang, Chang Luo, Conglin Huang   +10 more
openaire   +3 more sources

Exploration of Degradation Mechanism of Chlorogenic Acids in Stevia Based on UPLC-QTOF MS/MS

Zhipu Xuebao
Chlorogenic acids (caffeoylquinic acids, CQAs), as key bioactive components in numerous traditional herbal medicines, are highly acclaimed for their various biological activities and therapeutic benefits.
Juan-juan WU, Zi-xuan WANG, Yun-he LIAN, Li-juan HOU, Zhi-ping NIU, Wen-chang WANG, Di WU   +6 more
doaj   +1 more source

Effects of the Irrigation with Treated Wastewaters on the Proximate Composition, Mineral, and Polyphenolic Profile of the Globe Artichoke Heads [Cynara cardunculus (L.)]

Agronomy, 2019
The present work was carried out to evaluate the effects of irrigation with two different municipal wastewaters (secondary-treated wastewater (SW) and tertiary-treated wastewater (TW)) compared to freshwater (FW) on main qualitative parameters of three ...
Anna Gagliardi, Marcella Michela Giuliani, Federica Carucci, Matteo Francavilla, Giuseppe Gatta   +4 more
doaj   +1 more source