Chemical Characterization and Biological Activities of Some Aromatic Plants in Aljouf, Saudi Arabia

No Thumbnail Available
Date
Authors
بشاير سلامه عبدالله الدغماني
Journal Title
Journal ISSN
Volume Title
Publisher
Saudi Digital Library
Abstract
Importance: Natural food additives, especially antioxidants, are the future of food preservation industry as synthetic ones could have a long-term potential harm to human health, including toxicity and carcinogenicity. Results: The volatile constituents of fresh and dried Mentha suaveolens L in Saudi Arabia (Aljouf area) for the whole plant, leaves, and stems were extracted via maceration and analyzed using Gas Chromatography (GC) and Gas Chromatography/Mass Spectrometry (GC/MS). According to our knowledge, this study was unique for including all parts of the M. suaveolens L. The volatile constituents of fresh and dried M. suaveolens L for each part contained 125 compounds. Carvone was the main volatile constituent for fresh and dried M. suaveolens L for the whole plant (43.65% and 39%, respectively), leaves (64.31% and 53.45%, respectively), and stems (58.8% and 49%, respectively). The volatile constituents of M. suaveolens L belonged to the carvone chemotype because the volatile extracts were rich in carvone. Also, the analysis of non-volatile constituents of fresh and dried M. suaveolens L whole plant, leaves, and stems was performed by High-Performance Liquid Chromatography (HPLC). Rosmarinic acid was the main phenolic compound of fresh and dried M. suaveolens L for the whole plant (2223.3µg/g and 21191.9µg/g, respectively), leaves (28002.5µg/g and 15165.1µg/g, respectively), and stems (6558µg/g and 8378.4µg/g, respectively). All Mentha extracts showed strong antioxidant activity because it was rich in phenolic compounds. For the first time, a fungus (Penicillium glabrum) isolated from white cheese was inhibited by Mentha extracts. Leaves of fresh M. suaveolens L presented a higher antifungal activity compared with the other hexane extracts. In comparison, fresh M. suaveolens L stems showed higher antifungal activity than the other ethanolic extracts. Application aspects: This study indicates that M. suaveolens L could be used to manufacture unique natural antioxidants and a flavoring component. Although the observed biological activities of M. suaveolens L extracts were less than those recorded for synthetic antioxidants, they have the advantage of being safe and available as natural food additives in large and cost-effective quantities.
Description
Keywords
Citation
Collections