ArticleScientific reports2021
Harvest time affects antioxidant capacity, total polyphenol and flavonoid content of Polish St John's wort's (Hypericum perforatum L.) flowers.
Article in Scientific reports, 2021. 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.
- In Vitro Evidence for the Dual Antioxidant and Anti-Inflammatory Roles ofMolecules (Basel, Switzerland) · 2026Article
- Changes in Phytochemical Compositions and Biological Activities After Fermentation According to the Harvest Periods of Mountain-Cultivated Ginseng Sprouts.Foods (Basel, Switzerland) · 2026Article
- Flavonoids and fagopyrins in buckwheat leaves and flowers during the growing season and their relationship with weather conditions.Open life sciences · 2026Article
- Phytochemical investigation, in vitro antioxidant, antibacterial activities of the leaf and fruit extracts of Hypericum revolutum Vahl (Amija), and essential oil composition of the leaf extract.BMC complementary medicine and therapies · 2025Article
- Investigation of the Physiological and Antioxidant Properties of the Medicinal and EndemicBiology · 2025Article
- Screening of a Plant Extract Library from the Greek Flora for Biological Activities Related to Anti-Aging Applications.Antioxidants (Basel, Switzerland) · 2025Article
- Optimization of Combined Ultrasound and Microwave-Assisted Extraction for Enhanced Bioactive Compounds Recovery from Four Medicinal Plants: Oregano, Rosemary, Hypericum, and Chamomile.Molecules (Basel, Switzerland) · 2024Article
- Flavonoids and Other Polyphenols: Bioactive Molecules from Traditional Medicine Recipes/Medicinal Plants and Their Potential for Phytopharmaceutical and Medical Application.Molecules (Basel, Switzerland) · 2024Review
- Phytochemical Profile, Antioxidant, Anti-Atopic, and Anti-Inflammatory Activities ofPharmaceuticals (Basel, Switzerland) · 2024Article
- Phytochemical Analysis and Antioxidant Effects ofInternational journal of molecular sciences · 2024Article
- The In Vitro Assessment of Antibacterial and Antioxidant Efficacy inMicroorganisms · 2023Article
- Effect of St. John's Wort (Biomedicines · 2023Review
- Cytotoxic and Antioxidant Activity ofMolecules (Basel, Switzerland) · 2023Article
- Dose-Response Effects of Bamboo Leaves on Rumen Methane Production, Fermentation Characteristics, and Microbial Abundance In Vitro.Animals : an open access journal from MDPI · 2022Article
- Bulgarian Medicinal Extracts as Natural Inhibitors with Antiviral and Antibacterial Activity.Plants (Basel, Switzerland) · 2022Article
- Does phenotyping ofFrontiers in plant science · 2022Review
- Chemical Composition and Bioactive Antioxidants Obtained by Microwave-Assisted Extraction ofFrontiers in nutrition · 2022Article
- Mangiferin and Hesperidin Transdermal Distribution and Permeability through the Skin from Solutions and Honeybush Extracts (Molecules (Basel, Switzerland) · 2021Article
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Authors and funding
10 authors.
Funding
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Abstract
The polyphenol content and antioxidant capacity of hyperforin and hypericin-standardized H. perforatum L. extracts may vary due to the harvest time. In this work, ethanol and ethanol-water extracts of air-dried and lyophilized flowers of H. perforatum L., collected throughout a vegetation season in central Poland, were studied. Air-dried flowers extracts had higher polyphenol (371 mg GAE/g) and flavonoid (160 mg CAE/g) content, DPPH radical scavenging (1672 mg DPPH/g), ORAC (5214 µmol TE/g) and FRAP (2.54 mmol Fe
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