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Depigmenting Effect of Catechins [PDF]

Molecules, 2009
The aim of the present work was to clarify the anti-melanogenic mechanism of the catechin group. In this study, we used (-)-epigallocatechin-3-gallate (EGCG), (-)-epigallocatechin (EGC), (-)-catechin (C), and gallic acid (GA).
Masaru Toriyama, Kazuomi Sato
doaj   +3 more sources

Autoxidation of Catechin [PDF]

Nature, 1955
An exploratory study of those reactions of catechin which lead to polymer formation has enabled the conditions for autoxidation to be defined. The formation of polymers and hydrogen peroxide during the autoxidation at 35 and pH6-8 of catechin and of related 3': 4'-dihydroxyflavans has been studied by measurement of oxygen uptake, and by absorption ...
D. E. Hathway, J. W. T. Seakins
openalex   +3 more sources

Isolation and identification of a bioactive compound from Japanese red pine (Pinus densiflora) tea and its antioxidative effects on vascular endothelial cells

NFS Journal, 2023
The bioactive compound, which showed a potent nitric oxide production stimulation effect, was isolated from Japanese red pine tea and identified as (+)-catechin.
WenQian Jiang, Yuka Hattori, WonJune Lee, YiQian Zhang, KaiNing Zhang, Shojiro Hishiyama, Tomoko Shimokawa, Hitoshi Miyazaki, Shigeki Yoshida   +8 more
doaj   +1 more source

Metabolic Flux Analysis of Catechin Biosynthesis Pathways Using Nanosensor

Antioxidants, 2020
(+)-Catechin is an important antioxidant of green tea (Camelia sinensis (L.) O. Kuntze). Catechin is known for its positive role in anticancerous activity, extracellular matrix degradation, cell death regulation, diabetes, and other related disorders. As
Habiba Kausar, Ghazala Ambrin, Mohammad K. Okla, Walid Soufan, Abdullah A. Al-Ghamdi, Altaf Ahmad   +5 more
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Thermally Stable and Antimicrobial Active Poly(Catechin) Obtained by Reaction with a Cross-Linking Agent

Biomolecules, 2020
(+)-Catechin is a flavonoid with valuable antioxidant and antimicrobial properties, found in significant amounts in green tea leaves. Polymeric forms of catechin have been obtained by enzymatic reaction, photopolymerization, and polycondensation in ...
Malgorzata Latos-Brozio, Anna Masek, Małgorzata Piotrowska   +2 more
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Seasonal Development of Paeonia obovata and Paeonia oreogeton and Their Contents of Biologically Active and Reserve Substances in the Forest-Steppe Zone of Western Siberia

Horticulturae, 2023
Paeonia obovata and Paeonia oreogeton belong to the monotypic family Paeoniaceae. Both are popular as ornamental plants. P. obovata and P. oreogeton have been introduced into Novosibirsk Oblast (Western Siberia) from Primorye (Far East).
Olga V. Kalendar, Vera A. Kostikova, Tatiana A. Kukushkina, Andrey S. Erst, Alexander A. Kuznetsov, Maxim S. Kulikovskiy, Olga Y. Vasilyeva   +6 more
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Determination of catechins in cosmetics by high⁃performance liquid chromatography

Shanghai yufang yixue, 2022
ObjectiveTo establish a high⁃performance liquid chromatography （HPLC） quantitative method for the determination of epicatechin （EC）， （-）⁃epicatechin gallate （ECG）， （-）⁃epigallocatechin （EGC）， （-）⁃epigallocatechin gallate （EGCG）， （-）⁃gallocatechin （GC）， （-
RU Ge, HAN Jing, PENG Xingsheng, ZHENG Rong   +3 more
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Encapsulation of Catechin into β-Glucan Matrix Using Wet Milling and Ultrasonication as a Coupled Approach: Characterization and Bioactivity Retention

Foods, 2022
In this study, the nanoencapsulation of catechin into the β-glucan matrix from oats [O-Glu (C)] and barley [B-Glu (C)] was performed using the coupled approach of ultrasonication and wet milling.
Asima Shah, ZanoorUl Ashraf, Asir Gani, Faiza Jhan, Adil Gani, Munazah Sidiq   +5 more
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Food-Grade Microencapsulation Systems to Improve Protection of the Epigallocatechin Gallate

Foods, 2022
Epigallocatechin gallate (EGCG) is a catechin and one of the most abundant polyphenols in green tea, and it is under research for its potential benefit to human health and for its potential to be used in disease treatments, such as for cancer.
Mathis Ralaivao, Jade Lucas, Fernando Rocha, Berta N. Estevinho   +3 more
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Effects of Blue-Light-Induced Free Radical Formation from Catechin Hydrate on the Inactivation of Acinetobacter baumannii, Including a Carbapenem-Resistant Strain

Molecules, 2018
Catechin is a flavan-3-ol, a derivative of flavans, with four phenolic hydroxyl groups, which exhibits a wide range of physiological properties. Chromatographic analyses were employed to examine the effects of blue light irradiation on the changes of ...
Meei-Ju Yang, Yi-An Hung, Tak-Wah Wong, Nan-Yao Lee, Jeu-Ming P. Yuann, Shiuh-Tsuen Huang, Chun-Yi Wu, Iou-Zen Chen, Ji-Yuan Liang   +8 more
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