Results 21 to 30 of about 7,126 (200)

Use of [C₄mim]Cl for efficient extraction of caffeoylquinic acids from sweet potato leaves. [PDF]

Sci Rep, 2017
Sweet potato, Ipomoea batatas, is a widely cultivated vegetable worldwide. The leaves contain polyphenolic natural products called caffeoylquinic acids (CQAs), which possess biological activities including inhibition of aggregation of amyloid peptides ...
Usuki T, Onda S, Yoshizawa-Fujita M, Rikukawa M.   +3 more
europepmc   +2 more sources

Quantification of Major Bioactive Constituents, Antioxidant Activity, and Enzyme Inhibitory Effects of Whole Coffee Cherries (Coffea arabica) and Their Extracts

Molecules, 2021
Coffee cherry is a rich source of chlorogenic acids (CGAs) and caffeine. In this study we examined the potential antioxidant activity and enzyme inhibitory effects of whole coffee cherries (WCC) and their two extracts on α-amylase, α-glucosidase and ...
Boris Nemzer, Diganta Kalita, Nebiyu Abshiru   +2 more
doaj   +1 more source

Online Identification and Constitutive Relationship Analysis of Antioxidant Components in Jerusalem Artichoke

Shipin gongye ke-ji, 2023
In this study, a new method based on the HPLC online scavenging diphenyl-1-picrylhydrazyl (DPPH) radical activity and Q-TOF/MS for the rapid screening and identification of caffeoylquinic acids in Jerusalem artichoke, and its antioxidant activity was ...
Zhiyi ZHANG, Ruoxi BAI, Aizhen ZONG, Minmin ZHANG, Zhenjia ZHENG, Bin ZHANG   +5 more
doaj   +1 more source

Caffeoylquinic Acids in Centella asiatica Reverse Cognitive Deficits in Male 5XFAD Alzheimer's Disease Model Mice. [PDF]

Nutrients, 2020
Centella asiatica (CA) is an edible plant and a popular botanical dietary supplement. It is reputed, in Ayurveda, to mitigate age-related cognitive decline.
Matthews DG, Caruso M, Alcazar Magana A, Wright KM, Maier CS, Stevens JF, Gray NE, Quinn JF, Soumyanath A.   +8 more
europepmc   +2 more sources

Characterization of Caffeoylquinic Acids from Lepisorus thunbergianus and Their Melanogenesis Inhibitory Activity. [PDF]

ACS Omega, 2020
Hyperpigmentation resulting from the overactivation of tyrosinase leads to darker spots or patches on the human skin. Although these phenomena are harmless, there is still great demand for melanogenesis inhibitors to prevent hyperpigmentation by inhibiting the tyrosinase, a rate-limiting enzyme in melanogenesis.
Kim HH, Kim JK, Kim J, Jung SH, Lee K.
europepmc   +5 more sources

THE COMPARATIVE OVERVIEW OF HPLC ANALYSIS OF DIFFERENT EXTRACTS FROM MORUS SPECIES FROM SOUTHEAST SERBIA

Studia Universitatis Babes-Bolyai Chemia, 2020
The aim of this work was to evaluate the content of phenolic compounds (phenols, flavonoids and anthocyanins) of Morus alba L. fruit (white mulberry), Morus rubra L. (red mulberry) and Morus nigra L. fruit (black mulberry) by the HPLC analysis.
Danica DIMITRIJEVIĆ, Danijela KOSTIĆ, Milan MITIĆ, Dušan PAUNOVIĆ, Branka STOJANOVIĆ, Jovana KRSTIĆ, Slavica STEVANOVIĆ, Jasmina VELIČKOVIĆ   +7 more
doaj   +1 more source

Optimization of Extraction Conditions to Improve Chlorogenic Acid Content and Antioxidant Activity of Extracts from Forced Witloof Chicory Roots

Foods, 2022
Chlorogenic acids are major phenolic constituents in many herbal medicines and exhibit various bioactivities that explain the growing interest in extracting chlorogenic acids from biomass.
Morad Chadni, Emilie Isidore, Etienne Diemer, Otmane Ouguir, Fanny Brunois, Régis Catteau, Laurent Cassan, Irina Ioannou   +7 more
doaj   +1 more source

Exploiting column chemistry for chromatographic separation and quantification of caffeoylquinic acids in Gynura procumbens [PDF]

, 2020
A simple and sensitive high-performance liquid chromatography-ultraviolet (HPLC-UV) method was developed by exploiting the benefits of phenyl-hexyl column for the simultaneous determination of mono- and di-caffeoylquinic acids in Gynura procumbens plant ...
Khaw, Kooi Yeong, Sadikun, Amirin, Murugaiyah, Vikneswaran, Sultan Ayesh Mohammed Saghir, Kooi-Yeong Khaw, Kisantini Murugesu, Amirin Sadikun, Vikneswaran Murugaiyah, Murugesu, Kisantini, Saghir, Sultan Ayesh Mohammed   +9 more
core   +1 more source

Bioanalytical method validation and application to a phase 1, double-blind, randomized pharmacokinetic trial of a standardized Centella asiatica (L.) Urban water extract product in healthy older adults

Frontiers in Pharmacology, 2023
Introduction:Centella asiatica is an herbaceous plant reputed in Eastern medicine to improve memory. Preclinical studies have shown that C. asiatica aqueous extract (CAW) improves neuronal health, reduces oxidative stress, and positively impacts learning
Kirsten M. Wright, Kirsten M. Wright, Melissa Bollen, Melissa Bollen, Jason David, Bridgette Mepham, Armando Alcázar Magaña, Armando Alcázar Magaña, Christine McClure, Claudia S. Maier, Claudia S. Maier, Joseph F. Quinn, Joseph F. Quinn, Joseph F. Quinn, Amala Soumyanath, Amala Soumyanath   +15 more
doaj   +1 more source

Distribution of Phenolic Compounds and Antioxidant Activity in Plant Parts and Populations of Seven Underutilized Wild Achillea Species

Plants, 2022
Evaluation of phytochemical composition of underutilized Achillea species provides the primary selection of germplasms with the desired quality of raw material for their further applications.
Lina Raudone, Jolita Radušiene, Fatih Seyis, Fatih Yayla, Gabrielė Vilkickyte, Mindaugas Marksa, Liudas Ivanauskas, Cüneyt Cırak   +7 more
doaj   +1 more source