Characterization of Bioactive Compounds and Antioxidant Activity of Medicinal Plants: 2nd Edition

A Special Issue of Horticulturae (ISSN 2311-7524) belonging to the section "Medicinals, Herbs, and Specialty Crops".

Deadline for manuscript submissions: 20 September 2026 | Viewed by 2605

Editor


E-Mail Website
Guest Editor
Laboratório de Química de Produtos Naturais, Universidade do Estado do Pará, Belém 66095-015, PA, Brazil
Interests: volaliles; essential oil; in vivo studies; pharmacology; pain; inflammation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Following the tremendous success of the first edition of the Special Issue “Characterization of Bioactive Compounds and Antioxidant Activity of Medicinal Plants” (https://www.mdpi.com/journal/horticulturae/special_issues/YQ7QE1M30I), we are eager to further advance research in this area.

Antioxidants are commonly used to inhibit, prevent or delay deterioration due to oxidation. They can act to reduce free radicals as a primary antioxidant or through a mechanism that does not directly reduce free radicals, such as a secondary antioxidant.

Due to the current trend of consumers' increasing demand for natural products caused by growing concerns about health, it is necessary to study the use of condiments and aromatic herbs as natural antioxidants to replace the widely used conventional BHA and BHT.

Free radicals, tiny molecules of unpaired free electrons, are produced mainly during physiological metabolism and pathological processes. They perform essential biological functions, such as defense against aggression, metabolism, energy production, fertilization and gene activation.

Therefore, considering the importance and antioxidant properties, this particular issue, titled "Characterization of Bioactive Compounds and Antioxidant Activity of Medicinal Plants: 2nd Edition," aims to present studies that report the chemical characterization of botanical species and their antioxidative potential and isolation of molecules with antioxidant properties.

Dr. Pablo Luis B. Figueiredo
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • plant extracts
  • essential oils
  • in vitro methods
  • antiradical activity
  • phenolic compounds
  • natural antioxidants

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

23 pages, 2171 KB  
Article
Rhododendron adamsii Flowers as a Potential Source of Tea-Derived Flavonoid Antioxidants
by Daniil N. Olennikov, Nina I. Kashchenko and Nadezhda K. Chirikova
Horticulturae 2026, 12(4), 484; https://doi.org/10.3390/horticulturae12040484 - 15 Apr 2026
Cited by 2 | Viewed by 2205
Abstract
Rhododendron adamsii Rehder, also known as sagan dali, is one of the most valued northern rhododendron species of Siberia and Mongolia as both a medicinal and food plant. Its flowers are traditionally used by indigenous communities in daily life to prepare teas [...] Read more.
Rhododendron adamsii Rehder, also known as sagan dali, is one of the most valued northern rhododendron species of Siberia and Mongolia as both a medicinal and food plant. Its flowers are traditionally used by indigenous communities in daily life to prepare teas that are attributed with medicinal properties in local traditional medicine. However, the lack of reliable data on the chemical composition and bioactivity of R. adamsii flowers has limited their broader application and underscores the need for comprehensive studies to verify their beneficial properties. The application of liquid chromatography–mass spectrometry enabled the identification of fifty-four compounds in sixteen samples of different origins, with flavonoids representing the dominant group and belonging to various aglycone types. Among the identified metabolites were dihydroflavonols of the taxifolin series; flavonols of the myricetin, quercetin, and kaempferol series; as well as several minor flavonoid and non-flavonoid compounds. Thirty-seven of these compounds are reported for the first time in this species. The total phenolic content in R. adamsii flowers can reach 155.82 mg/g, of which up to 147.54 mg/g are flavonoids. The analysis revealed variation in both the qualitative profile and quantitative levels of individual compounds among different populations, suggesting the presence of distinct R. adamsii chemotypes. The preparation of flower tea was associated with high rates of flavonoid transfer into the decoction, particularly when pulverized raw material was used compared with unground or hand-ground samples. This was reflected in the enhanced antioxidant activity of the decoctions, which was maximal for pulverized flowers in in vitro assays against artificial and natural free radicals, as well as in nitric oxide scavenging and Fe2+-chelating tests. These results suggest that R. adamsii flowers and their tea represent a new possible source of flavonoids and after additional clinical evidence may serve as valuable antioxidant ingredients for the development of functional foods. Full article
Show Figures

Figure 1

Back to TopTop