Abstract
The plants from genus Origanum are common folk Chinese herbs used to treat a variety of diseases. They are also used as a spice, a seasoning, and an ornament. Origanum plants are rich in essential oils and also have other compounds including terpenoids, flavonoids, organic acids, and sterols. They have a variety of biological activities such as antispasmodic, anti-inflammatory, growth-promoting, antibacterial, antioxidant, and anticancer properties. The chemical components and biological effects of genus Origanum were summarized by different scientific databases such as Web of Science, SciFinder, Baidu Scholar, PubMed, ScienceDirect, and SpringerLink. In conclusion, recent studies were mainly focused on the activities of their essential oils. The research studies for nonvolatile constituents and their pharmacological activities are few. Therefore, research on compounds in genus Origanum plants can be strengthened and their application prospect can be explored so as to make better use of the resources of these plants.
Highlights
Introduction e genusOriganum (Lamiaceae) is an annual, perennial, and shrubby herb
Wang added oregano essential oils (OEO) to broilers, and the results showed that at 42 days of age, the activity of acid α-naphthyl acetate esterase in T lymphocyte and the T lymphocyte conversion rate in the 100 mg/kg OEO group increased by 16.56% and 13.90%, respectively, compared with the control group (P < 0.05), which significantly enhanced the cellular immunity of broilers [45]
The essential oils of genus Origanum are the research focus and the components were mainly analyzed by GC-MS. e results showed that essential oils’ compositions and content depend on the different parts of the plants and the origin of the plants. e main chemical components of essential oils are terpenoids and they have many pharmacological activities such as antibacterial, antioxidant, anticancer, anti-inflammatory, immune regulative, hypoglycemic, and growth promoting
Summary
23 flavonoids (93–115) (Figure 4) were isolated from genus Origanum [9–14]. Compounds 93–107 belong to flavonoids, 108–111 belong to flavonols, and 112–115 belong to flavanone and their glycosides. 20 organic acid compounds (116-135) (Figure 5) were isolated from genus Origanum [9–16], mainly including phenols, cinnamic acids, and salvianolic acids. E terpenoids oleanolic acid (136), arbutin (137) [13], sterol stigmasterol (138) [11], β-sitosterol (139), and daucosterol (140) were isolated from genus Origanum (Figure 6) [15]. Piperitol ymol p-Cymen-2-ol Terpinen-4-ol α-Terpineol p-Cymen-8-ol trans-Dihydrocarvone. Carvacrol methyl ether Benzene, 1-methoxy-4-methyl-2-(1-methylethyl) ymol acetate Carvacrol acetate α-Campholenal. Greece Peloponissos Pakistan Peloponissos Crete Izmir, Turkey Salerno, Montecorice Izmir, Turkey.
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