ArticleAntioxidants (Basel, Switzerland)2022
The Catechins Profile of Green Tea Extracts Affects the Antioxidant Activity and Degradation of Catechins in DHA-Rich Oil.
Article in Antioxidants (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 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
21 citing papers in PubMed, 44 citations in OpenAlex.
- Article
- Effects of Green Tea Extract and (+)-Catechin Hydrate on Sperm Quality and Seminal Plasma Antioxidant Activity: An In Vitro Study in Rams.Veterinary medicine and science · 2026Article
- In Vitro Fermentation of Green Tea by Human Gut Microbiota Enhances Bioactivity and Bidirectionally Modulates Polyphenol Metabolites and Gut Microbiota.Foods (Basel, Switzerland) · 2026Article
- Protective effect of green tea extract on chlorpyrifos induced toxicity in liver of male mice.Scientific reports · 2026Article
- Unveiling of phytochemicals, antioxidants, cytotoxic effects and anthelmintic potency of green tea (Camellia sinensis) beverage against albendazole resistant Hamonchus contortus.Scientific reports · 2026Article
- Stereospecificity Membrane Impact of Two Catechins on Red Blood Cells.Antioxidants (Basel, Switzerland) · 2026Article
- Timing-dependent effects of green tea supplementation and exercise intensity on oxidative stress in diabetic rats: a 2 × 2 × 2 factorial study.Frontiers in sports and active living · 2026Article
- Epigallocatechin Gallate as a Molecular Therapeutic in Heart Failure and Cardio-Oncology: Mechanistic Pathways and Translational Perspectives.International journal of molecular sciences · 2025Review
- Lipid-Based Nanotechnologies for Delivery of Green Tea Catechins: Advances, Challenges, and Therapeutic Potential.Pharmaceutics · 2025Review
- Lipid Oxidative Stability of Fresh Pork Sausages Enriched With Peixinho Da Horta (Stachys byzantina K. Koch) Extracts Obtained via Natural Deep Eutectic Solvents (NADES).Journal of food science · 2025Article
- Unveiling Synergistic Antioxidant Effects of Green Tea and Peppermint: Role of Polyphenol Interactions and Blend Preparation.International journal of molecular sciences · 2025Article
- Epigallocatechin Gallate inPharmaceuticals (Basel, Switzerland) · 2025Article
- Green Tea Pressurized Hot Water Extract in Atherosclerosis: A Multi-Approach Study on Cellular, Animal, and Molecular Mechanisms.Antioxidants (Basel, Switzerland) · 2025Article
- Green Tea: Current Knowledge and Issues.Foods (Basel, Switzerland) · 2025Review
- Plant food-derived antioxidant nutrients in neuroprotection against chemotherapy-induced neurotoxicity: from molecular mechanisms to clinical applications.Frontiers in nutrition · 2025Review
- DNA Barcode, chemical analysis, and antioxidant activity of Psidium guineense from Ecuador.PloS one · 2025Article
- Potentialities of Tannase-Treated Green Tea Extract in Nutraceutical and Therapeutic Applications.Applied biochemistry and biotechnology · 2024Review
- Effects of adding green tea extract on the oxidative stability and shelf life of sunflower oil during storage.Food chemistry: X · 2024Article
- Effect of Ultrasound-Assisted Extraction and Drying Methods on Bioactive Compounds, Phenolic Composition, and Antioxidant Activity of Assam Tea Cultivar (Advances in pharmacological and pharmaceutical sciences · 2024Article
- Evaluation of the Phenolic Composition and Biological Activities of Six Aqueous Date (Foods (Basel, Switzerland) · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study investigated the effect of the catechins profile on the antioxidant activity of green tea extracts (GTEs) by comparing the antioxidant activity of an EGC-rich GTE (GTE1, catechin content: 58% EGC, 30.1% EGCG, 7.9% EC, and 3.9% ECG) and an EGCG-rich GTE (GTE2, catechin content: 60.6% EGCG, 17.7% EGC, 11.8% ECG, and 9.8% EC) in a DHA-rich oil. The effects of the individual catechins (EGC, EC, EGCG, and ECG) and reconstituted catechins mixtures (CatMix), prepared to contain the same amount of major catechins as in the GTEs, were also measured. All treatments (GTE1, CatMix1, GTE2, CatMix2, EGC250, EC250, EGCG250, and ECG250), each containing epistructured catechins at a concentration of 250 ppm, as well as the control (oil with no added antioxidant), were stored at 30 °C for 21 days with sampling intervals of 7 days. The antioxidant activity was assessed by measuring the peroxide value (PV) and p-anisidine value (p-AV) of oils. Changes in fatty acid content and catechins content were also monitored. Both GTEs enhanced the oxidative stability of the DHA-rich oil, but GTE1 demonstrated a stronger antioxidant activity than GTE2. No significant difference was observed between the PV of treatments with GTE1 and CatMix1 during storage, whereas the PV of oil with GTE2 was significantly higher than that with CatMix2 after 21 days. Among the individual catechins, EGC was the strongest antioxidant. Overall, the antioxidant activities of the extracts and catechins were observed in the decreasing order GTE1 ≈ EGC250 ≈ CatMix1 > GTE2 > EGCG250 ≈ CatMix2 > ECG250 > EC250. A significant change in fatty acid content was observed for the control and EC250 samples, and the catechins were most stable in GTE1-supplemented oil. Our results indicate that the EGC-rich GTE is a more potent antioxidant in DHA-rich oil than the EGCG-rich GTE.
Indexed as
Identifiers
What Socratic 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 Socratic graph.