Results 41 to 50 of about 5,958,372 (224)

A novel basis for monitoring the coffee roasting process: Isomerization reactions of 3-caffeoylquinic and 4-caffeoylquinic acids

LWT, 2021
Abstract The aim of this study was to investigate the changes of individual chlorogenic acids during the coffee roasting process under authentic commercial conditions. Unique chemical reactions of caffeoylquinic acid (CQA) and dicaffeoylquinic acid (diCQA) isomers were shown in different Coffea species (C. arabica vs. C. canephora), batch sizes (1 kg
Lukas Macheiner, Anatol Schmidt, Helmut K. Mayer   +2 more
openaire   +1 more source

Tandem mass spectrometry of aqueous extract from Ficus dubia sap and its cell-based assessments for use as a skin antioxidant

Scientific Reports, 2021
Since 2006, Ficus dubia has been reported as a new Ficus species in Thailand. As per our recent report, the red-brown aqueous extract of F. dubia sap (FDS) has been determined to strongly exhibit in vitro anti-radicals. However, the phytochemicals in the
Chaisak Chansriniyom, Rawiwan Nooin, Nitra Nuengchamnong, Ratjika Wongwanakul, Nalinrat Petpiroon, Wanwisa Srinuanchai, Bhanumas Chantarasuwan, Pornsiri Pitchakarn, Piya Temviriyanukul, Onanong Nuchuchua   +9 more
doaj   +1 more source

Light-Emitting Diodes and Liquid System Affect the Caffeoylquinic Acid Derivative and Flavonoid Production and Shoot Growth of Rhaponticum carthamoides (Willd.) Iljin. [PDF]

Molecules
Plant in vitro cultures can be an effective tool in obtaining desired specialized metabolites. The purpose of this study was to evaluate the effect of light-emitting diodes (LEDs) on phenolic compounds in Rhaponticum carthamoides shoots cultured in vitro.
Skała E, Olszewska MA, Tabaka P, Kicel A.   +3 more
europepmc   +2 more sources

Characterization of Phenolic Constituents from Prunus cerasifera Ldb Leaves

Journal of Chemistry, 2020
To elucidate the chemical compositions of Prunus cerasifera Ldb leaves, the methanol extracts were firstly fractionated by ethyl acetate and n-butanol, respectively.
Wei Liu, Muhammad Farrukh Nisar, Chunpeng Wan   +2 more
doaj   +1 more source

Pharmacokinetic Comparison of Eight Major Compounds of Lonicerae japonicae flos after Oral Administration in Normal Rats and Rats with Liver Injury

Molecules, 2022
Traditional Chinese medicine considers Lonicerae japonicae flos to have antibacterial detoxification, liver protection, and gallbladder protection. At present, studies have proven that Lonicerae japonicae flos has a good therapeutic effect on liver ...
Xuejiao Wang, Songtao Liu, Lin Yang, Jiaojiao Dong, Shihao Zhang, Jiahao Lv, Liu Yang, Hai Jiang   +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

Vernonia britteniana Root Phytochemical Studies, In Vitro Cercaricidal Activity on the Larval Stage of Schistosoma mansoni and Antioxidant Activities

Plants, 2023
Vernonia britteniana Hiern. (Asteraceae) is a medicinal plant used in traditional Angolan medicine against schistosomiasis. Our study aimed to investigate the phytochemical composition and the cercaricidal and antioxidant activities in vitro of a ...
Maria dos Anjos Valente, Pedro Ferreira, Katelene Lima, Isabel B. Moreira da Silva, Paula Nobre, Isabel Neto, Mavilde Pires, Berta São Braz, Rita Serrano, Silvana Belo, Olga Silva   +10 more
doaj   +1 more source

Inhibition of HIV Infection by Caffeoylquinic Acid Derivatives

Antiviral Chemistry and Chemotherapy, 1993
The caffeoylquinic acids 3,4,5-tri-O-caffeoylquinic acid (1) and 4,5-di-O-caffeoylquinic acid (2), as well as caffeic acid (4) and synapoic acid (5) were isolated from the plant Securidaka longipedunculata (polygalaceae). 1 exhibited a greater selective inhibition of HIV replication than 2 which had an anti-HIV activity similar to that of 3,4,5-tri-O ...
N. Mahmood, P. S. Moore, N. De Tommasi, F. De Simone, S. Colman, A. J. Hay, C. Pizza   +6 more
openaire   +1 more source

Comparison of Phenolic Compounds and the Antioxidant Activities of Fifteen Chrysanthemum morifolium Ramat cv. ‘Hangbaiju’ in China

Antioxidants, 2019
This study investigated the phenolic compounds of 15 Chrysanthemum morifolium Ramat cv. ‘Hangbaiju’, including 6 ‘Duoju’ and 9 ‘Taiju’, using high performance liquid chromatography (HPLC). The antioxidant activities of
Jinyan Gong, Bingquan Chu, Lingxiao Gong, Zhongxiang Fang, Xiaoxu Zhang, Shaoping Qiu, Jingjing Wang, Yali Xiang, Gongnian Xiao, Haina Yuan, Fuping Zheng   +10 more
doaj   +1 more source

Genome-wide association studies and expression-based quantitative trait loci analyses reveal roles of HCT2 in caffeoylquinic acid biosynthesis and its regulation by defense-responsive transcription factors in Populus.

New Phytologist, 2018
3-O-caffeoylquinic acid, also known as chlorogenic acid (CGA), functions as an intermediate in lignin biosynthesis in the phenylpropanoid pathway. It is widely distributed among numerous plant species and acts as an antioxidant in both plants and animals.
Jin Zhang, Yongil Yang, Kaijie Zheng, Meng Xie, Kai Feng, S. Jawdy, L. Gunter, P. Ranjan, Vasanth R. Singan, N. Engle, E. Lindquist, Kerrie W. Barry, J. Schmutz, Nan Zhao, T. Tschaplinski, J. LeBoldus, G. Tuskan, Jin‐Gui Chen, W. Muchero   +18 more
semanticscholar   +1 more source