UPLC-PDA-ESI-QTOF-MS/MS and GC-MS analysis of Iranian Dracocephalum moldavica L.

Azin Fattahi,Abolfazl Shakeri,Yvan Vander Heyden,Seyedeh Faezeh Taghizadeh,Hanieh Rahmani,Zahra Tayarani-Najaran,Mourad Kharbach,Javad Asili,Karen Segers

doi:10.1002/fsn3.2396

Abstract

Dracocephalum moldavica L. is a significant component in the Iranian food basket. This study aimed to investigate the bioactive compounds and biological activities of different extracts obtained from D. moldavica aerial parts. From the aerial parts, a crude methanolic (MeOH) extract and its four sub‐fractions, that is, petroleum ether (Pet), ethyl acetate (EtOAc), n‐butanol (n‐BuOH), and aqueous (water) extracts were obtained. The total phenolic and flavonoid contents as well as the antioxidant and cytotoxic activities of the extracts were determined. Moreover, the phytochemical profiles of the essential oil (EO) and of those extracts with the highest antioxidant activity measured by GC/MS and UPLC–PDA‐ESI–QTOF–MS/MS. Results showed that the highest concentrations of phenols and flavonoids as well as the most potent antioxidant potential according to the DPPH method were determined in the EtOAc and MeOH extracts with IC50 values of 22.0 and 34.4 µg.ml‐1, respectively. Quantitative analysis of these extracts was subsequently performed by UPLC–PDA‐ESI–QTOF–MS/MS. Both extracts contained mainly rosmarinic acid, caffeic acid, and 2‐hydroxycinnamic acid, which may be responsible for their high antioxidant activity. Moreover, none of the extracts showed cytotoxic effects against MCF7, SW48, and a normal cell line of mouse embryonic fibroblast cells (NIH/3T3) in the tested concentrations (up to 400 μg.ml‐1). Additionally, GC‐MS analysis showed that oxygenated monoterpenes (55.4%) were the main constituents of the EO of D. moldavica.

Highlights

The daily intake of sufficient vegetables has an important role in preventing several diseases (Barends et al, 2019)
This study aimed to investigate the bioactive compounds and biological activities of different extracts obtained from D. moldavica aerial parts
Results showed that the highest concentrations of phenols and flavonoids as well as the most potent antioxidant potential according to the DPPH method were determined in the EtOAc and MeOH extracts with IC50 values of 22.0 and 34.4 μg.ml-1, respectively

Summary

Introduction

The daily intake of sufficient vegetables has an important role in preventing several diseases (Barends et al, 2019). D. moldavica (Moldavian balm) is a common edible vegetable used daily for the preparation of many Iranian dishes. It belongs to the Lamiaceae family, is up to 80 cm tall, and is native to central Asia (Yousefzadeh et al, 2018). The plant is applied as analgesic, anticonvulsive, anti-inflammatory, sedative, wound healing, and in the treatment of cardiovascular disorders (Yousefzadeh et al, 2013). In TCM in a clinical trial the aqueous extract of D. moldavica was shown to be effective in the treatment of cardiovascular disease, asthma, fatigue insomnia, and neurasthenia In TCM in a clinical trial the aqueous extract of D. moldavica was shown to be effective in the treatment of cardiovascular disease, asthma, fatigue insomnia, and neurasthenia (N. Yu et al, 2015)

Objectives

Results

Conclusion