Bibliographic Details
| Title: |
Cultivated St. John’s Wort Flower Heads Accumulate Tocotrienols over Tocopherols, Regardless of the Year of the Plant |
| Authors: |
Ieva Miķelsone, Elise Sipeniece, Inga Mišina, Elvita Bondarenko, Paweł Górnaś |
| Source: |
Plants, Vol 14, Iss 6, p 852 (2025) |
| Publisher Information: |
MDPI AG, 2025. |
| Publication Year: |
2025 |
| Collection: |
LCC:Botany |
| Subject Terms: |
Hypericaceae, herb, aerial part, tocol, α-tocopherol, phytochemicals, Botany, QK1-989 |
| More Details: |
St. John’s wort (Hypericum perforatum L.) has been extensively utilized across various traditional medicinal systems, including ancient Greek medicine, traditional Chinese medicine, and Islamic medicine. H. perforatum is a well-known medicinal plant due to the presence of hypericin and hyperforin, which are natural antidepressants. Recent studies indicate that the inflorescences of wild H. perforatum are a source of rare tocotrienols, primarily δ-T3. Similar studies are lacking for cultivated species. H. perforatum was grown for three years. At full bloom each year, the plant was cut and separated into its parts: stems, leaves, flower buds, and flowers. Tocotrienols (T3s) were present in each part of the H. perforatum. The lowest concentration of tocotrienols was recorded in stems and the highest in flower buds (1.7–4.2 and 88.2–104.7 mg/100 g dry weight, respectively). Flower buds and flowers were the main source of α-T3 and δ-T3 tocotrienols. The plant part has a significant impact on the tocochromanol profile and concentration, while the year of harvest/plant aging does not. The present study demonstrates that cultivated H. perforatum flower heads are the first known flowers with relatively high concentrations of tocotrienols. St. John’s wort flower buds accumulate tocotrienols over tocopherols, regardless of the year of the plant. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2223-7747 |
| Relation: |
https://www.mdpi.com/2223-7747/14/6/852; https://doaj.org/toc/2223-7747 |
| DOI: |
10.3390/plants14060852 |
| Access URL: |
https://doaj.org/article/03f58f18a64e4e2ab701246ab6354b2a |
| Accession Number: |
edsdoj.03f58f18a64e4e2ab701246ab6354b2a |
| Database: |
Directory of Open Access Journals |
