ArticleMolecules (Basel, Switzerland)2016
Ultraviolet B (UVB) Photosensitivities of Tea Catechins and the Relevant Chemical Conversions.
Article in Molecules (Basel, Switzerland), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 54 citations in OpenAlex.
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- Evaluation of the mineral composition, phytochemical and proximate constituents of three culinary spices in Nigeria: a comparative study.Scientific reports · 2022Article
- Assessment of Cosmetic and Dermatological Properties and Safety of Use of Model Skin Tonics with Kombucha-Fermented Red Berry Extracts.International journal of molecular sciences · 2022Article
- Chemical and Skincare Property Characterization of the Main Cocoa Byproducts: Extraction Optimization by RSM Approach for Development of Sustainable Ingredients.Molecules (Basel, Switzerland) · 2021Article
- LC-HRMS Profiling and Antidiabetic, Antioxidant, and Antibacterial Activities ofBioMed research international · 2021Article
- Catechin Photolysis Suppression by Aluminum Chloride under Alkaline Conditions and Assessment with Liquid Chromatography-Mass Spectrometry.Molecules (Basel, Switzerland) · 2020Article
- Bio-Based Packaging Materials Containing Substances Derived from Coffee and Tea Plants.Materials (Basel, Switzerland) · 2020Article
- Oxidation Stability: The Bottleneck for the Development of a Fully Renewable Biofuel from Wine Industry Waste.ACS omega · 2020Article
- Protective Effect of Selected Antioxidants on Naproxen Photodegradation in Aqueous Media.Antioxidants (Basel, Switzerland) · 2019Article
- Lithium biofortification of medicinal tea Apocynum venetum.Scientific reports · 2019Article
- Effects of Epigallocatechin Gallate on the Stability of Epicatechin in a Photolytic Process.Molecules (Basel, Switzerland) · 2019Article
- Effects of Blue-Light-Induced Free Radical Formation from Catechin Hydrate on the Inactivation ofMolecules (Basel, Switzerland) · 2018Article
- Food-grade Encapsulation Systems for (-)-Epigallocatechin Gallate.Molecules (Basel, Switzerland) · 2018Review
- Green tea and cocoa enhance cognition inCommunicative & integrative biology · 2018Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Ultraviolet B (UVB) photosensitivities of eight catechins were screened. In both water and ethanol, epicatechin (EC, 575 μM) and catechin (C, 575 μM) exhibited low photostabilities under 6 h UVB radiation with the generation of yellow photoproducts, while other catechins (epigallocatechin gallate, epigallocatechin, epicatechin gallate, gallocatechingallate, gallocatechin, catechin gallate) were relatively UVB-insensitive. Photoisomerization and photolysis were two important UVB-induced reactions to EC whereas photolysis was the dominant reaction for C. The influencing factors of time (2-10 h), solvent (water, ethanol) and substrate concentration (71.875-1150 μM) on UVB-induced chemical conversions of EC and C were investigated, and eight photoproducts were identified through ultra performance liquid chromatography-diode array detection-tandem mass spectrometry (UPLC-DAD-MS/MS) and ¹H nuclear magnetic resonance (¹H-NMR analysis). Photolysis reaction involved two pathways, including radical reaction and photo-induced electron transfer reaction. The 2,2-diphenylpicrylhydrazyl (DPPH) scavenging abilities of eight catechins did not change upon 6 h UVB irradiation. EC and C are photosensitive catechins among eight catechins causing deep color.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.