Results 81 to 90 of about 12,684 (226)

Phytochemical Composition of Solanum retroflexum Analysed with the Aid of Ultra-Performance Liquid Chromatography Hyphenated to Quadrupole-Time-of-Flight Mass Spectrometry (UPLC-qTOF-MS)

open access: yesJournal of Food Quality, 2018
Solanum retroflexum (nightshade) is an edible plant that is consumed in some regions of South Africa. Its leaves are a good source of vitamins, proteins, and minerals. It appears that there is no scientific report about the phytochemical composition of S.
Grace Daji   +3 more
doaj   +1 more source

Four New Dicaffeoylquinic Acid Derivatives from Glasswort (Salicornia herbacea L.) and Their Antioxidative Activity

open access: yesMolecules, 2016
Four new dicaffeoylquinic acid derivatives and two known 3-caffeoylquinic acid derivatives were isolated from methanol extracts using the aerial parts of Salicornia herbacea. The four new dicaffeoylquinic acid derivatives were established as 3-caffeoyl-5-
Jeong-Yong Cho   +8 more
doaj   +1 more source

Anti-mycobacterial assessment and characterization of 5-O-caffeoylquinic acid methyl ester and rutin from Pavetta crassipes [PDF]

open access: yes, 2016
Pavetta crassipes leaf (Fam. Rubiaceae) is used as part of a combination herbal remedy for the treatment of tuberculosis (TB) and other respiratory infections in Nigerian ethno medicine.
Haroune, Nicolas   +5 more
core   +1 more source

Chemical Profile, Anti‐Inflammatory, and Antioxidant Potential of Hydroalcoholic Extracts and Fractions From Baccharis glaziovii Baker (Asteraceae)

open access: yesChemistry &Biodiversity, Volume 23, Issue 3, March 2026.
Image adapted from Jasinski et al. [79], Revista Brasileira de Farmacognosia 24, no. 6: 609–616. Reproduced under the terms of the CC BY license. Copyright 2014 by the authors; published by Elsevier. ABSTRACT Baccharis glaziovii Baker, known as carqueja‐arbustinho, is a native Brazilian plant characterized by its three‐winged stems.
Fabio Vidal Tananta   +4 more
wiley   +1 more source

Changes in the Polyphenolic Profile, Carotenoids and Antioxidant Potential of Apricot (Prunus armeniaca L.) Leaves during Maturation

open access: yesAgriculture, 2017
Apricot (Prunus armeniaca L.) leaves were studied to assess the potential of apricot leaves for future studies and their applications in nutraceutical and bioactive functional ingredients.
Alam Zeb, Nadia Khadim, Waqar Ali
doaj   +1 more source

Discrimination and classification of tobacco wastes by identification and quantification of polyphenols with LC–MS/MS [PDF]

open access: yes, 2010
The chemical composition of polyphenols in tobacco waste was identified by HPLC-PDA–ESI/MS/MS and the contents of chlorogenic acids and rutin in 10 varieties of tobacco wastes were determined by HPLC–UV.
BEN JIANG   +7 more
core   +1 more source

Gastroprotective Effect of Artemisia herba‐alba Leaf Extract in Acetic Acid–Induced Gastric Ulceration in Wistar Rats

open access: yesChemistry &Biodiversity, Volume 23, Issue 3, March 2026.
ABSTRACT Gastric ulcers are common gastrointestinal lesions resulting from oxidative stress and inflammation. Artemisia herba‐alba, a medicinal plant with antioxidant and anti‐inflammatory properties, was evaluated for its curative effects against acetic acid‐induced gastric ulcers in Wistar rats. The aqueous leaf extract was characterized by LC‐MS and
Afef Nahdi   +6 more
wiley   +1 more source

Experimental and Modelling Study of Enzymatic Oxidation of 5-o-Caffeoylquinic Acid by Polyphenol Oxidases

open access: yesFood Technology and Biotechnology, 2010
A set of experiments to investigate the enzymatic oxidation of 5-o-caffeoylquinic acid with polyphenol oxidases was carried out in the temperature range from 18 to 39 °C.
Tarcila Bueno dos Santos   +4 more
doaj  

Inhibitory Effects of Grape Stem Extracts From Douro Varieties on Skin‐Aging Enzymes: A Sustainable Source of Cosmeceutical Agents

open access: yesJournal of Cosmetic Dermatology, Volume 25, Issue 3, March 2026.
ABSTRACT Background Grape stems are a major by‐product of the winemaking process and remain largely underexploited despite their richness in bioactive phenolic compounds, representing an opportunity for sustainable valorization within a circular economy framework.
Maria Garcia‐Marti   +4 more
wiley   +1 more source

Phenolic profiling of Veronica spp. grown in mountain, urban and sand soil environments [PDF]

open access: yes, 2014
Veronica (Plantaginaceae) genus is widely distributed in different habitats. Phytochemistry studies are increasing because most metabolites with pharmacological interest are obtained from plants. The phenolic compounds of V. montana, V.
Barreira, João C.M.   +6 more
core   +1 more source

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