Results 51 to 60 of about 2,322 (195)
Journal of Chemometrics, Volume 40, Issue 6, June 2026.ABSTRACT This study investigates the performance of near‐infrared (NIR)‐based partial least squares (PLS) regression models for quantifying hyperforin in Hypericum perforatum L., with particular emphasis on temporal validation and robustness analysis. Dried and ground Hypericum samples were analyzed using three different NIR spectrometers: one benchtop
Nele‐Elin Schröter, Knut Baumann
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Cytotoxic acylphloroglucinols from the aerial parts of Hypericum hirsutum L. (Hypericaceae) [PDF]
PharmaciaA phytochemical investigation of the dichloromethane extract of the aerial parts of Hypericum hirsutum L. led to isolating the main polyprenylated acylphloroglucinols (1 and 2).
Zlatina Kokanova-Nedialkova +2 more
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Revista Verde de Agroecologia e Desenvolvimento Sustentável, 2023 Forest fragmentation leads to various environmental problems. It causes edge effects that can decrease biodiversity, promote the growth of lianas, and affect the production of epicuticular wax.
Ramôn da Silva Santos +5 more
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Methods of obtaining hypericaceae herb extract for the food industry
Proceedings of the Voronezh State University of Engineering Technologies, 2022 Hypericaceae herb contains biologically active compounds, flavonoids (1.5–5%), naphthodianthrons, phloroglucins, tannins (10-13%), essential oil (0.1–0.33%) and other compounds. In accordance with the patent RU 2,067,452 C1, St. John's wort extract is obtained using a solvent system acetone-70% ethanol – 30% ethanol.
A. V. Drannikov +5 more
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Greater Thermal Plasticity Toward Heterogeneous Range‐Edge Environments of Three Hypericum Species
Ecology and Evolution, Volume 16, Issue 5, May 2026.Predictions from the highest‐ranked models testing the effect of range position (RP) and environmental heterogeneity (EH) on trait plasticity, with population‐specific plasticity values in blue (Hypericum montanum), red (H. perforatum), and green (H. maculatum).
S. H. M. Koivusaari +10 more
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FIGURE 2 in Hypericum perryongii (Hypericaceae), a new species from Philippines
, 2021 FIGURE 2. Hypericum perryongii Galindon sp. nov. A. Flowering branchlet. B. Leaf, abaxial view. C. Sepal. D. Petal. E. Fruit. F. Seed. A, D by Samuel Guarino; B, C, E, F by J.M.M. Galindon.
Tandang, Danilo N. +6 more
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Wellcome Open ResearchWe present a genome assembly of Hypericum androsaemum (Tutsan; Streptophyta; Magnoliopsida; Malpighiales; Hypericaceae). The genome sequence has a total length of 384.54 megabases.
Maarten J. M. Christenhusz
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Antinociceptive Properties of St. John's Wort ) and Other Species
Natural Product Communications, 2016 This review aims at a coherent summary of the results obtained from various studies that concern analgesic-like activity of the extracts of H. preforatum L. and thirteen other Hypericum L. species (Hypericaceae).
Nikola M. Stojanović +3 more
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Leaf Phytognostic Characters of Six Species of Hypericum L. (Hypericaceae) [PDF]
RA Journal of Applied Research, 2017 Most of the studies on Hypericum genus deals with the phytochemical and pharmacological properties and the morphoanatomical data are scarce, although sometimes some species are poorly identified. In order to obtain differentiating phytognostic characters, the micromorphological, anatomical and histochemical study of mature leaves of six Hypericum ...
Teixeira, Generosa, Monteiro, Ana
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Chromosomal observations on Eliea (Hypericaceae), a monospecific Madagascar endemic
Journal of the Botanical Research Institute of Texas, 2023 A meiotic chromosome number of n=9 is reported for Eliea articulata, a monospecific genus of Hypericaceae endemic to Madagascar. This first report for the genus is a new number for the small tribe Cratoxlyeae which includes only one other genus, Cratoxylum.
Frank Almeda, Ricardo Pacifico
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