Phytochemical Composition, Antioxidant and Antimicrobial Activity of Three Monarda Species: M. bradburiana L. C. Beck, M. × media Willd., and M. punctata L.

Author:

Gontar Łukasz1ORCID,Geszprych Anna1ORCID,Drutowska Andżelika12ORCID,Osińska Ewa1ORCID

Affiliation:

1. Department of Vegetable and Medicinal Plants Institute of Horticulture Sciences Warsaw University of Life Sciences 159 Nowoursynowska Street 02-776 Warsaw Poland

2. Research and Innovation Centre Pro-Akademia 9/11 Innowacyjna Street 95-050 Konstantynów Łódzki Poland

Abstract

AbstractPlants of the genus Monarda receive growing interest as the sources of herbal raw materials with wide range of potential applications in food, cosmetics, and phytopharmaceutical industry. This study aimed to evaluate the differences in chemical characteristics and biological activity among different organs of plants representing three underinvestigated species of this genus: Monarda bradburiana L. C. Beck, Monarda × media Willd., and Monarda punctata L. The content of phenolic compounds and the antioxidant activity of leaves, stems, and inflorescences were determined. Essential oil (EO) content, composition, and antimicrobial activity were also examined. M. punctata leaves and inflorescences had the highest EO content (4.43 % and 5.59 %, respectively), with carvacrol as a dominant constituent. Leaf EO was also rich in thymoquinone (17.48 %). In EOs of M. bradburiana and M. × media, thymol dominated. EOs inhibited the growth of all tested strains of microorganisms at a concentration of 0.625 μL×mL−1. The studied plant organs were rich in phenolic compounds, especially rosmarinic acid. M. bradburiana inflorescences were distinguished by high linarin content. Differences in flavonoid distribution seem to have special chemotaxonomic importance. Further research is needed to facilitate standardisation of the investigated plant organs as potential new herbal raw materials.

Publisher

Wiley

Reference58 articles.

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