ArticleTheScientificWorldJournal2014
The galloyl catechins contributing to main antioxidant capacity of tea made from Camellia sinensis in China.
Article in TheScientificWorldJournal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 56 citations in OpenAlex.
- Effects of medium-term green tea extract supplementation combined with CrossFit workout on blood antioxidant status and serum brain-derived neurotrophic factor in young men: a pilot study.Journal of the International Society of Sports Nutrition · 2019Trial
- Impact of green tea powder on the flavor and functional properties of fermented glutinous rice sweet wine.Food chemistry: X · 2026Article
- Ku2: A Novel Korean Purple-Green Tea Germplasm (Plants (Basel, Switzerland) · 2025Article
- Evaluation of the effect of gallic acid dentin treatment on the shear bond strength of the composite resin by using universal adhesive, in self-etch and total-etch strategies.Journal of clinical and experimental dentistry · 2025Article
- Comparison of Multiple NIR Instruments for the Quantitative Evaluation of Grape Seed and Other Polyphenolic Extracts with High Chemical Similarities.Foods (Basel, Switzerland) · 2024Article
- Impact of tea leaves categories on physicochemical, antioxidant, and sensorial profiles of tea wine.Frontiers in nutrition · 2023Article
- The Catechins Profile of Green Tea Extracts Affects the Antioxidant Activity and Degradation of Catechins in DHA-Rich Oil.Antioxidants (Basel, Switzerland) · 2022Article
- The novel distribution of intracellular and extracellular flavonoids produced byFrontiers in microbiology · 2022Article
- Water-Soluble Melanoidin Pigment as a New Antioxidant Component of Fermented Willowherb Leaves (Antioxidants (Basel, Switzerland) · 2021Article
- Comparative Analysis of the Polyphenols, Caffeine, and Antioxidant Activities of Green Tea, White Tea, and Flowers from AzoreanAntioxidants (Basel, Switzerland) · 2021Article
- Evaluating the protective potency of Acacia hydaspica R. Parker on histological and biochemical changes induced by Cisplatin in the cardiac tissue of rats.BMC complementary and alternative medicine · 2019Article
- Tea regimen, a comprehensive assessment of antioxidant and antitumor activities of tea extract produced by Tie Guanyin hybridization.RSC advances · 2018Article
- Acacia hydaspica R. Parker ameliorates cisplatin induced oxidative stress, DNA damage and morphological alterations in rat pulmonary tissue.BMC complementary and alternative medicine · 2018Article
- Antioxidant activity of polyphenolic compounds isolated from ethyl-acetate fraction of Acacia hydaspica R. Parker.Chemistry Central journal · 2018Article
- Phoenix Dan Cong Tea: An Oolong Tea variety with promising antioxidant andFood & nutrition research · 2018Article
- Potential neuroprotective properties of epigallocatechin-3-gallate (EGCG).Nutrition journal · 2016Review
- Food Inhibits the Oral Bioavailability of the Major Green Tea Antioxidant Epigallocatechin Gallate in Humans.Antioxidants (Basel, Switzerland) · 2015Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Total polyphenol content, catechins content, and antioxidant capacities of green, dark, oolong, and black teas made from Camellia sinensis in China were evaluated. The total polyphenol content of 20 samples of tea was in the range of 7.82-32.36%. Total catechins content was in the range of 4.34-24.27%. The antioxidant capacity of tea extract was determined by the oxygen radical absorbance capacity (ORAC) test and the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging test. Total polyphenol content, catechins content, and antioxidant capacity decreased in the following order: green > oolong > black > dark tea. A positive correlation existed between the antioxidant capacity and total polyphenol content or catechins content (R (2) = 0.67-0.87). The antioxidant capacities of five major catechins (epigallocatechin gallate (EGCG), epicatechin gallate (ECG), epicatechin, epigallocatechin, and catechin) were determined by online HPLC DPPH radical-scavenging; the antioxidant activity of tea was mainly attributed to the esterified catechins (EGCG or ECG).
Indexed as
Identifiers
What OpenQuestion holds
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.