Results 41 to 50 of about 74,405 (378)

Betalains and phenolic compounds of leaves and stems of Alternanthera brasiliana and Alternanthera tenella [PDF]

open access: yes, 2018
Betacyanins and phenolic compounds from acetonitrile:acidified water extracts of Alternanthera brasiliana and Alternanthera tenella were characterized and quantified using a high-performance liquid chromatography system coupled with diode array and ...
Alvarez, I.   +5 more
core   +1 more source

ALA-induced flavonols accumulation in guard cells is involved in scavenging H2O2 and inhibiting stomatal closure in Arabidopsis cotyledons

open access: yesFrontiers in Plant Science, 2016
5-aminolevulinic acid (ALA), a new plant growth regulator, can inhibit stomatal closure by reducing H2O2 accumulation in guard cells. Flavonols are a main kind of flavonoids and have been proposed as H2O2 scavengers in guard cells.
Yuyan An   +4 more
doaj   +1 more source

The spatio-temporal biosynthesis of floral flavonols is controlled by differential phylogenetic MYB regulators in Freesia hybrida.

open access: yesNew Phytologist, 2020
Floral flavonols play specific pivotal roles in pollinator attraction, pollen germination and fertility besides other functions in vegetative organs. In contrast to early flower developmental stages, flavonol biosynthesis in late flower developmental ...
Xiaotong Shan   +10 more
semanticscholar   +1 more source

Chemical characterization of an encapsulated red wine powder and its effects on neuronal cells [PDF]

open access: yes, 2018
Red wine polyphenols are known for their implications for human health protection, although they suffer from high instability. For this reason, a red wine powder was prepared by freeze-drying encapsulation in maltodextrin/arabic gum matrix, and its ...
Chirife, Jorge   +3 more
core   +1 more source

Variability of Polyphenol Compounds in Myrtus Communis L. (Myrtaceae) Berries from Corsica

open access: yesMolecules, 2010
Polyphenol compounds were extracted from Myrtus communis L. berries (Myrtaceae) by maceration in 70% ethanol and analysed by HPLC-DAD and electrospray mass spectrometry. The Myrtus berries were collected at maturity from seven localities on the island of
Nathalie Chiaramonti   +4 more
doaj   +1 more source

Beneficial effects of bunch-zone late defoliations and shoot positioning on berry composition and colour components of wines undergoing aging in an organically-managed and rainfed Sangiovese vineyard

open access: yesOENO One, 2022
In the context of climate change, where high temperatures are frequent in the first phases of ripening, protecting grapevine bunches from solar radiation is essential for preserving berry composition and wine colour.
Paola Tessarin   +5 more
doaj   +1 more source

Flavonoid Profile of Saskatoon Berries (Amelanchier alnifolia Nutt.) and Their Health Promoting Effects

open access: yesMolecules, 2013
Flavonoids are a significant group of secondary metabolites in plants. Many of these compounds are potent antioxidants, being an important part in food products derived from the plants.
Jiri Mlcek   +5 more
doaj   +1 more source

Automatic Identification of Players in the Flavonoid Biosynthesis with Application on the Biomedicinal Plant Croton tiglium

open access: yesPlants, 2020
The flavonoid biosynthesis is a well-characterised model system for specialised metabolism and transcriptional regulation in plants. Flavonoids have numerous biological functions such as UV protection and pollinator attraction, but also biotechnological ...
Boas Pucker   +2 more
doaj   +1 more source

Allium Flavonols: Health Benefits, Molecular Targets, and Bioavailability

open access: yesAntioxidants, 2020
Allium species are revered worldwide as vegetables, condiments, and spices as well as the therapeutic agents in traditional medicine. The bioactive compounds in alliums mainly include organosulfur compounds, polyphenols, dietary fibers, and saponins ...
D. Kothari, Woo-Do Lee, Soo‐Ki Kim
semanticscholar   +1 more source

Mass Spectrometric Fingerprint Mapping Reveals Species-Specific Differences in Plant Polyphenols and Related Bioactivities

open access: yesMolecules, 2023
Plant species show large variation in the composition and content of their tannins and other polyphenols. These large metabolites are not easy to measure accurately, but they are important factors for species bioactivity and chemotaxonomy.
Suvi Vanhakylä, Juha-Pekka Salminen
doaj   +1 more source

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