Abstract
Medicinal and Aromatic Plants (MAPs) play an essential role in global health systems, since more than 80% of population use natural products in primary healthcare. Given that the global use of herbal medicines is exponentially increasing, as well as many MAPs products are introduced into the market, many cultivation practices are applied to produce high quality and standardized plant raw materials. Thus, the present study focuses on the chemical fingerprints of two cultivated Sideritis species. In Cyprus, Sideritis cypria Post and S. perfoliata L. subsp. perfoliata are widely used in traditional medicine. To date, there is no research work presenting the comparative chemical profiling between the aforesaid species using NMR methods. In this study, 1D and 2D NMR experiments were used to compare the chemical fingerprints of these species originated from conventional cultivation practices. Iridoids (ajugol, monomelittoside, and melittoside) and one flavone (4′-methyl-isoscutellarein 7-O-[6‴-O-acetyl]-β-D-allosyl(1→2)glucoside) were present in the infusion of S. perfoliata subsp. perfoliata. The phenylethanoid glycoside, acteoside, was detected in both samples. The phytochemical profiles of these cultivated species were similar to those of Sideritis species, indicating the positive impact of cultivation practices in MAPs.
Highlights
Medicinal and Aromatic Plants (MAPs) are sources of specialized products with therapeutic potential which could lead to the discovery of new drugs [1]
In Cyprus, the infusions of the aerial parts of S. cypria Post and S. perfoliata L. subsp. perfoliata are used in traditional medicine as agents for various ailments such as stomach discomforts, respiratory disorders, influenza, and common cold [3]
Harvesting was performed from one-year-old plants cultivated at Athalassa farm (Nicosia, Cyprus) by the Department of Agriculture of Ministry of Agriculture, Rural Development and Environment of Cyprus (Sideritis cypria) in 2019 and at Akrotiri (Limassol, Cyprus) (Sideritis perfoliata subsp. perfoliata) in 2018
Summary
Medicinal and Aromatic Plants (MAPs) are sources of specialized products with therapeutic potential which could lead to the discovery of new drugs [1]. The cultivation of MAPs is considered as a great aspect for developing high quality and standardized natural raw materials in adequate quantity for industrial scale production, as well as for avoiding their potential extinction. As the cultivation of MAPs is continuously increasing, rapid and precise analytical methods for identifying their chemical fingerprint are essential need. Nuclear Magnetic Resonance (NMR) fingerprinting has enabled and accelerated analytical procedures and authentication process of plant extracts, since NMR method is a fast, simple, reproducible, and non-destructive technique [2]. Previous studies on extracts and infusions of these species revealed their rich nutrition and phytochemical profiles, as well as their great in vitro biological effects, including antioxidant, anti-inflammatory, antimicrobial, and cytotoxic activities [4,5,6,7,8,9]
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