Results 51 to 60 of about 11,718 (195)

Consumption of cocoa flavanols results in acute improvements in mood and cognitive performance during sustained mental effort [PDF]

open access: yes, 2010
Cocoa flavanols (CF) positively influence physiological processes in ways that suggest their consumption may improve aspects of cognitive function. This study investigated the acute cognitive and subjective effects of CF consumption during sustained ...
Andrew B Scholey   +20 more
core   +1 more source

Toxicity of aqueous extracts of Ilex paraguariensis A.St.‐Hil. about Euphorbia heterophylla L.

open access: yesPest Management Science, EarlyView.
Aqueous extracts of Ilex paraguariensis A.St.‐Hil. strongly inhibit Euphorbia heterophylla L. germination and early seedling growth, but show mild phytotoxicity on mature plants, paradoxically promoting biomass via antioxidants. Abstract BACKGROUND The escalating challenge of herbicide‐resistant weeds, exemplified by Euphorbia heterophylla L.
Tamara Alberton da Silva   +8 more
wiley   +1 more source

Extraction of cocoa proanthocyanidins and their fractionation by sequential centrifugal partition chromatography and gel permeation chromatography [PDF]

open access: yes, 2016
Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)Cocoa beans contain secondary metabolites ranging from simple alkaloids to complex polyphenols with most of them believed to possess significant health benefits.
A Marston   +25 more
core   +1 more source

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

open access: yesExperimental 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   +5 more
wiley   +1 more source

The significance of CYP1A2 genotype on caffeine metabolism and exercise performance : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Human Nutrition at Massey University, Manawatu, New Zealand [PDF]

open access: yes, 2015
Objective: The objective of this study was to investigate whether a single nucleotide polymorphism (C to A transversion at position -163 downstream of the first transcribed nucleotide) in the enzyme that metabolizes caffeine (CYP1A2), would explain ...
McGrath, Michelle Clare
core  

Emerging Contaminants in Raw and Cooked Marine Mussels: The QuEChERS Approach Combined With High‐Performance Liquid Chromatography Coupled With Tandem Mass Spectrometry

open access: yesJournal of Mass Spectrometry, Volume 61, Issue 4, April 2026.
ABSTRACT Mussel aquaculture has experienced substantial growth in recent decades, with global production exceeding 2.17 megatons (live weight), more than doubling since the early 21st century. Representing nearly 94% of the total mussel production, aquaculture plays a crucial economic and ecological role.
Julia Gambetta Vianna   +3 more
wiley   +1 more source

Production of 7-methylxanthine from Theobromine by Metabolically Engineered E. coli

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2020
In this work, a novel biocatalytic process for the production of 7-methylxanthines from theobromine, an economic feedstock has been developed. Bench scale production of 7-methlxanthine has been demonstrated.
Khalid Hussein Rheima Algharrawi   +1 more
doaj   +1 more source

Design, Synthesis and Assay of Novel Methylxanthine–Alkynylmethylamine Derivatives as Acetylcholinesterase Inhibitors

open access: yesMolecules, 2022
Xanthine derivatives have been a great area of interest for the development of potent bioactive agents. Thirty-eight methylxanthine derivatives as acetylcholinesterase inhibitors (AChE) were designed and synthesized.
Danila V. Reshetnikov   +8 more
doaj   +1 more source

Valorization of the peel and husk of guaraná (Paullinia cupana): oil extraction, chemical composition, cytotoxicity, and antitumor potential

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 2, Page 879-892, March/April 2026.
Abstract Guaraná (Paullinia cupana) is a fruit native to the Amazon region. Due to its widespread use, primarily in beverages, its production has grown over the years. The seed is the only commercially valuable part of the fruit so the guaraná production chain generates byproducts, including peel, husk, and spent seed.
Leiliane do Socorro Sodré de Souza   +9 more
wiley   +1 more source

Synthesis and Biological Evaluation of Structurally Varied 5′-/6′-Isonucleosides and Theobromine-Containing N-Isonucleosidyl Derivatives

open access: yesPharmaceuticals, 2019
Isonucleosides are rather stable regioisomeric analogs of nucleosides with broad therapeutic potential. We have previously demonstrated the ability of 5′ and 6′-isonucleosides to inhibit the activity of acetylcholinesterase, a major target ...
Nuno M. Xavier   +6 more
doaj   +1 more source

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