Results 31 to 40 of about 16,887 (217)

Cell Suspension Cultures and High Frequency Shoot Regeneration of Some Hypericum species

open access: yesJournal of Agricultural Sciences
The Hypericum genus is significant both medically and economically due to its bioactive compounds. This study utilized plant biotechnology techniques to develop an efficient and reliable adventitious shoot regeneration and suitable cell suspension ...
Hussein Abdullah Ahmed Ahmed   +3 more
doaj   +1 more source

A method for obtaining aqueous and dry ethanol extracts of grass (a mixture of flowers with leaves) and a stalk of St. John's wort (Hypericum perforatum L.) with inhibitory activity on the replication of the SARS‐CoV‐2 coronavirus in vitro

open access: yesЮг России: экология, развитие, 2023
Aim. In vitro evaluation of the inhibitory activity of aqueous extracts and dry ethanol extracts of St John's wort (Hypericum perforatum L.) on the replication of SARS-CoV-2 according to three experimental schemes – direct inactivation (neutralisation ...
Е. I. Каzachinskaia   +8 more
doaj   +1 more source

Hypericum sp.: essential oil composition and biological activities [PDF]

open access: yes, 2012
Phytochemical composition of Hypericum genus has been investigated for many years. In the recent past, studies on the essential oils (EO) of this genus have been progressing and many of them have reported interesting biological activities. Variations in
A Baruah   +158 more
core   +1 more source

Development of methods for express-evaluation of resources of Hypericum perforatum L.

open access: yesБіологічні студії, 2013
The results of development of the model of resource evaluation of Hypericum perforatum L. in the field, based on statistical analysis of raw-material-relevant characteristics of populations of this species, including multivariate regression analysis, are
V. M. Minarchenko
doaj   +1 more source

Effect of Extraction Conditions on the Phenolic Content and DPPH Radical Scavenging Activity of Hypericum perforatum L.

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2020
In this study, various extracts of Hypericum perforatum L. were investigated in terms of their extraction yields. For this purpose, five solvent systems including 70%EtOH-30% H2O (A), 50%EtOH-50% H2O (B), 30%EtOH-70% H2O (C), 100% EtOH (D), and 100% H2O (
Fadime Seyrekoğlu, Hasan Temiz
doaj   +1 more source

Therapeutic Effects Of Hypericum perforatum L.

open access: yesHop and Medicinal Plants, 2022
Hypericum perforatum L. popularly called St. John's wort is a medicinal plant recognized especially for its therapeutic effects used in moderate depressive states. The article presents the importance of alternative medicine and also highlights the therapeutic effects of St.
Andreea Mădălina BORCĂ   +2 more
openaire   +1 more source

Identification of light-independent inhibition of human immunodeficiency virus-1 infection through bioguided fractionation of [PDF]

open access: yes, 2009
Background Light-dependent activities against enveloped viruses in St. John's Wort (Hypericum perforatum) extracts have been extensively studied. In contrast, light-independent antiviral activity from this species has not been investigated. Results Here,
Widrlechner Mark P   +15 more
core   +2 more sources

The Impact of Hypericum perforatum L. as an Organic Free-Radical Scavenger in Biodiesel-Diesel Blends

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
The extraction of Hypericum perforatum L. (HP) was performed using the Soxhlet extraction method to evaluate its potential as an organic free-radical scavenger in biodiesel-diesel blends.
Nalan Türköz Karakullukçu
doaj   +1 more source

Influence of high-rise level on structure of variability of reproductive sprout Hypericum Perforatum L. in the conditions of Dagestan

open access: yesЮг России: экология, развитие, 2015
The results of research of 9 populations Hypericum perforatum L. collected from different heights in natural conditions are presented in article. Variability of vegetative and reproductive members depending on an origin is revealed.
M. M. Mingazheva   +2 more
doaj   +1 more source

Bioaccumulation of macronutrients in herbaceous plants of the Sławno glaciolacustrine plain, northern Poland

open access: yesActa Fytotechnica et Zootechnica, 2018
The studies aimed to compare bioaccumulation and translocation of macronutrients from roots to above-ground organs for six species of herbaceous plants (Taraxacum officinale, Rumex acetosa L., Plantago major L., Plantago lanceolata, Potentilla anserina L.
Jerzy Jonczak, Agnieszka Parzych
doaj   +1 more source

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