Results 21 to 30 of about 37,339 (280)

Photophysical Behavior of Plant Flavonols Galangin, Kaempferol, Quercetin, and Myricetin in Homogeneous Media and the DMPC Model Membrane: Unveiling the Influence of the B‑Ring Hydroxylation of Flavonols

, 2022
Flavonols have been studied extensively because of their interesting biological activities and excited-state intramolecular proton transfer (ESIPT) behavior.
Anand Kumar Sahu (11603642), Anand Kumar Sahu, Ashok Kumar Mishra (579972), Ashok Kumar Mishra   +3 more
core   +1 more source

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

Frontiers 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, Xinxin Feng, Longbo Liu, Lijun Xiong, Liangju Wang   +4 more
doaj   +1 more source

Quantitative Analysis of Bioactive Compounds in Commercial Teas: Profiling Catechin Alkaloids, Phenolic Acids, and Flavonols Using Targeted Statistical Approaches

Foods, 2023
Tea, an extensively consumed and globally popular beverage, has diverse chemical compositions that ascertain its quality and categorization. In this investigation, we formulated an analytical and quantification approach employing reversed-phase ultra ...
Yuan Chen, Lingling Lai, Youli You, Ruizhen Gao, Jiaxin Xiang, Guojun Wang, Wenquan Yu   +6 more
doaj   +1 more source

Polyphenol Profile of Cistus × incanus L. and Its Relevance to Antioxidant Effect and α-Glucosidase Inhibition

Antioxidants, 2023
The European Food Safety Authority recommends C. incanus as a natural source of antioxidants. Its activity is essentially determined by polyphenols, although specific compounds are not finally indicated.
Aneta Starzec, Maciej Włodarczyk, Dominika Kunachowicz, Andrzej Dryś, Marta Kepinska, Izabela Fecka   +5 more
doaj   +1 more source

Extraction of Kaempferol and Its Glycosides Using Supercritical Fluids from Plant Sources: A Review

Food Technology and Biotechnology, 2018
Research has focused on the study and design of new products containing phytochemicals (polyphenolic acids, flavonoids and anthocyanins, among others) that contribute to a better life quality for consumers, as well as techniques to improve the extraction
Sandro Cid-Ortega, José Alberto Monroy-Rivera   +1 more
doaj   +1 more source

Functional Properties and Antioxidant Activity of Morus alba L. Leaves var. Zolwinska Wielkolistna (WML-P)—The Effect of Controlled Conditioning Process

Antioxidants, 2020
This study evaluated the effect of adding a new step, termed conditioning, to the traditional processing of leaves from Morus alba var. zolwinska wielkolistna grown in Poland (WML-P).
Monika Przeor, Ewa Flaczyk, Dominik Kmiecik, Maciej S. Buchowski, Halina Staniek, Aneta Tomczak-Graczyk, Joanna Kobus-Cisowska, Anna Gramza-Michałowska, Joanna Foksowicz-Flaczyk   +8 more
doaj   +1 more source

Phytochemical Composition of the Fruit of Large Cranberry (Vaccinium macrocarpon Aiton) Cultivars Grown in the Collection of the National Botanic Garden of Latvia

Plants, 2023
In this study, we conducted a qualitative and quantitative analysis of anthocyanins, proanthocyanidins, flavonols and triterpenoids in samples of introduced and bred large cranberry fruits from the collection of the National Botanic Garden of Latvia. The
Rima Šedbarė, Ginta Jakštāne, Valdimaras Janulis   +2 more
doaj   +1 more source

Natural variation in flavonol accumulation in Arabidopsis is determined by the flavonol glucosyltransferase BGLU6 [PDF]

Journal of Experimental Botany, 2015
Flavonols are colourless secondary metabolites, primarily regarded as UV-protection pigments that are deposited in plants in their glycosylated forms. The glycosylation of flavonols is mainly catalysed by UDP-sugar-dependent glycosyltransferases (UGTs).
Ishihara, Hirofumi, Tohge, Takayuki, Viehöver, Prisca, Fernie, Alisdair R., Weisshaar, Bernd, Stracke, Ralf   +5 more
openaire   +4 more sources

Traditional, Indigenous Apple Varieties, a Fruit with Potential for Beneficial Effects: Their Quality Traits and Bioactive Polyphenol Contents

Foods, 2020
Earlier studies suggested that traditional apple varieties have quality traits well accepted by consumers and beneficial effects on human health. The aim was to collect 25 traditional apple varieties grown in Croatia and to determine, for the first time ...
Lidija Jakobek, Jozo Ištuk, Ivana Buljeta, Sandra Voća, Jana Šic Žlabur, Martina Skendrović Babojelić   +5 more
doaj   +1 more source

Changes in the Composition of Biologically Active Compounds during the Ripening Period in Fruit of Different Large Cranberry (Vaccinium macrocarpon Aiton) Cultivars Grown in the Lithuanian Collection

Plants, 2023
In our investigation, we evaluated the content of chlorogenic acid, proanthocyanidins, anthocyanins, flavonols, triterpenoids, and phytosterols in cranberry fruit extracts of the cultivars ‘Baifay’, ‘Early Black’, ‘Howes’, ‘Pilgrim’, ‘Red Star’, and ...
Rima Šedbarė, Izolda Pašakinskienė, Valdimaras Janulis   +2 more
doaj   +1 more source