Results 1 to 10 of about 10,924 (185)

Quantification of Caffeoylquinic Acids in Coffee Brews by HPLC-DAD [PDF]

Journal of Analytical Methods in Chemistry, 2014
The influence of different brewing conditions on the concentration of the main caffeoylquinic acids (3-caffeoylquinic acid (3-CQA), 4-caffeoylquinic acid (4-CQA), and 5-caffeoylquinic acid (5-CQA)) was investigated.
Marzieh Moeenfard, Lígia Rocha, Arminda Alves   +2 more
doaj   +6 more sources

Valeriana rigida Ruiz & Pav. Root Extract: A New Source of Caffeoylquinic Acids with Antioxidant and Aldose Reductase Inhibitory Activities [PDF]

Foods, 2021
Valeriana rigida Ruiz & Pav. (V. rigida) has long been used as a herbal medicine in Peru; however, its phytochemicals and pharmacology need to be scientifically explored. In this study, we combined the offline 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH)
Guanglei Zuo, Hyun-Yong Kim, Yanymee N. Guillen Quispe, Zhiqiang Wang, Kang-Hyuk Kim, Paul H. Gonzales Arce, Soon-Sung Lim   +6 more
doaj   +2 more sources

HPLC–DAD of phenolics in bryophytes Lunularia cruciata, Brachytheciastrum velutinum and Kindbergia praelonga [PDF]

Journal of the Serbian Chemical Society, 2008
The chemistry of bryophytes is not well known. The available data indicate interesting chemical constitutions of some bryophyte species, i.e., active and new compounds are to be found within bryophytes, especially liverworts. In this study, one liverwort
NEBOJSA JOCKOVIC, PAULA B. ANDRADE, PATRÍCIA VALENTÃO, MARKO SABOVLJEVIC   +3 more
doaj   +5 more sources

Callus Culture of Scorzonera radiata as a New, Highly Productive and Stable Source of Caffeoylquinic Acids [PDF]

Molecules, 2022
During our ongoing efforts to investigate biotechnological sources of caffeoylquinic acid (CQA) metabolites, we discovered the plant Scorzonera radiata Fisch.
Olga V. Grishchenko, Valeria P. Grigorchuk, Galina K. Tchernoded, Olga G. Koren, Victor P. Bulgakov   +4 more
doaj   +2 more sources

Caffeoylquinic Acids from the Aerial Parts of Chrysanthemum coronarium L. [PDF]

Plants, 2017
To elucidate the chemical compositions of the aerial parts of Chrysanthemum coronarium L., the ethanol extracts of Ch. coronarium L. were firstly isolated by the MCI-gel resin column.
Chunpeng Wan, Shanshan Li, Lin Liu, Chuying Chen, Shuying Fan   +4 more
doaj   +2 more sources

Antioxidant Capacity and Accumulation of Caffeoylquinic Acids in Arnica montana L. In Vitro Shoots After Elicitation with Yeast Extract or Salicylic Acid [PDF]

Plants
Arnica montana L. is an important herbal medicinal plant that belongs to the family Asteraceae. This plant has been known for its medicinal uses for centuries. A.
Maria Petrova, Maria Geneva, Antoaneta Trendafilova, Kamelia Miladinova-Georgieva, Lyudmila Dimitrova, Mariana Sichanova, Milena Nikolova, Viktoria Ivanova, Margarita Dimitrova, Magdalena Sozoniuk   +9 more
doaj   +2 more sources

Recent Advances in Biosynthesis and Bioactivity of Plant Caffeoylquinic Acids [PDF]

Current Issues in Molecular Biology
Caffeoylquinic acids (CQAs), a class of phenolic acid metabolites widely distributed in plants, encompass 15 positional isomers from mono- to tetra-esters, with 5-O-caffeoylquinic acid (5-CQA) as the predominant form.
Hanqin Chen, Bo Pan, Shilong Zhang, Xin Li, Yuyao Zhang, Kang Gao, Dongliang Chen, Lili Wang, Tianhua Jiang, Chang Luo, Conglin Huang   +10 more
doaj   +2 more sources

Ultrasonic degradation kinetics and isomerization of 3- and 4-O-caffeoylquinic acid at various pH: The protective effects of ascorbic acid and epigallocatechin gallate on their stability

Ultrasonics Sonochemistry, 2021
Caffeoylquinic acids are existed in many plant species with various biological and pharmacological activities. 3-O-caffeoylquinic acid and 4-O-caffeoylquinic acid are two isomers of caffeoylquinic acids, which may be degraded and transformed to their ...
Danli Wang, Jiayuan Liu, Shaoping Qiu, Jingjing Wang, Gongshuai Song, Bingquan Chu, Ling Li, Gongnian Xiao, Jinyan Gong, Fuping Zheng   +9 more
doaj   +1 more source

Antioxidant and Mitochondria-Targeted Activity of Caffeoylquinic-Acid-Rich Fractions of Wormwood (Artemisia absinthium L.) and Silver Wormwood (Artemisia ludoviciana Nutt.)

Antioxidants, 2021
Caffeoylquinic acids are some of the chemophenetically significant specialized metabolites found in plants of the family Asteraceae Dumort., possessing a broad spectrum of biological activities.
Justina Kamarauskaite, Rasa Baniene, Lina Raudone, Gabriele Vilkickyte, Rimanta Vainoriene, Vida Motiekaityte, Sonata Trumbeckaite   +6 more
doaj   +1 more source

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