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About oregano essential oil

According to a study published in the Journal of Feed Research on the antioxidant and inhibitory effects of Oregano essential oil, wormwood essential oil and rosemary essential oil in vitro, according to the study, the antioxidant properties of rosemary essential oil are superior to oregano essential oil and wormwood essential oil, but lower than the chemical antioxidant properties. Oregano essential oils, wormwood essential oils and rosemary essential oils have significant antibacterial properties.

Oregano, peppermint oregano plant, originated in Greece, because of its strong smell, in Spain, the Mediterranean region as a spice for a long time, is a hardy perennial herb, there are 8 varieties, China’s oregano resources are mainly concentrated in the northwest, North China, as a traditional Chinese herbal medicine, oregano itself can be used to treat inflammation, prevent colds and relieve diarrhea.
Oregano contains more than 50 compounds, and Oregano essential oil contains 94% of the total, which is known as “natural antibiotics.”
The chemical composition of Oregano essential oil:

The main components of Oregano essential oil are phenolic compounds. According to the composition analysis of Oregano essential oil, Oregano leaf essential oil contains 46 compounds, including the content of vecholl (35.46%), followed by thymol, para-cymenin, rorosemary acid and caryophyllene.
GC-MS analysis showed that in addition to the above components, oregano essential oil also contained 2-isopropyl-1-methoxy-4-methylbenzene and terpinene. In addition, according to the analysis of oregano essential oil of different origin and different quality, the content of Oregano essential oil of different origin will be different (0.03%-8%) and composition.

(1) Antibacterial function
Studies have confirmed that oregano essential oil has significant inhibition and killing effect on gram-positive bacteria, gram-negative bacteria, molds and yeasts. The main bacteriostatic components are phenolic compounds such as carvacrol and thymol with phenolic structure. By changing the permeability of cell membrane, they lead to the leakage of intracellular substances, the loss of membrane potential, and can inhibit the respiration of mitochondria, causing bacteria
Body death. An in-depth study of the antibacterial effect of Oregano oil has found that Himalayan Oregano oil can kill the superbug methicillin-resistant Staphylococcus aureus, and the antibacterial effect is better than 18 antibiotics. Further studies have found that low doses of oregano oil can have antibacterial effects comparable to conventional antibiotics (streptomycin, penicillin and vancomycin), and are not resistant.
In view of the excellent antibacterial effect of Oregano essential oil, and the characteristics of non-drug resistance, Oregano essential oil is now often used in the non-resistant aquaculture industry, and it is one of the green, safe and efficient natural active ingredient drug additives approved by the Ministry of Agriculture and Rural areas.

(2) Antioxidant effect
Human body health is closely related to antioxidant. In the normal metabolic process of the body, all kinds of active oxygen species including superoxide anion free radical and hydroxyl free radical are produced. If these active oxygen species are not removed in time, they will damage tissues and organs
Official, which leads to the occurrence of a variety of diseases, accelerate the aging of the body. Many studies have confirmed that oregano essential oil contains a high concentration of antioxidants, which can protect the body from oxidative damage. Many degenerative diseases are related to oxidative damage, and immediate supplementation of antioxidants can effectively improve the development of degenerative diseases. Studies on AIDS have shown that long-term intake of antioxidant-rich plants (e.g
Such as oregano) can improve the immune function of AIDS patients. The main antioxidant components in oregano essential oil are carvacrol and thymol, whose antioxidant activity is higher than vitamin E and equivalent to the antioxidant butyl hydroxyanisole. Its antioxidant mechanism is related to the structure of carvacrol and thymol. The hydroxyl group of phenolic chemicals provides hydrogen ions for free radicals, improves the activity of antioxidant enzymes, and thus delays peroxidation
The process. Studies on the antioxidant properties of 39 herbal essential oils show that oregano essential oils have the highest antioxidant activity, which is much stronger than fennel essential oils and peppermint essential oils, among which the antioxidant properties of fennel essential oils are only 50% of oregano essential oils, and the antioxidant properties of peppermint essential oils are only 30% of oregano essential oils. The antioxidant properties of Oregano essential oil, now often used in the biological preservation industry, can maintain the stability of bioactive substances, prevent the degradation of unsaturated fatty acids and the inactivation of nutrients. And the antioxidant properties of oregano essential oil will increase with the increase of the amount of Oregano essential oil.

(3) Enhance immune function
Studies have shown that oregano essential oil enhances the body’s immune capacity by increasing the body’s immunoglobulin content. Add oregano essential oil at 40 g·t-1
Animal feed can significantly increase the serum IgA, IgG, IgM and other immunoglobulins concentration of calves, reduce the number of leukocytes and neutrophils in the blood of postpartum cows, and promote the uterine recovery of postpartum cows.

(4) Anti-inflammatory effect
Oregano oil has good anti-inflammatory properties due to its high content of rosmarinic acid, a recognized anti-inflammatory ingredient. Studies have shown that rosmarinic acid relieves asthma and allergy symptoms by reducing the number of eosinophils and neutrophils
Therefore, oregano essential oil is often used to treat asthma and relieve allergies. In addition to the anti-inflammatory component of rosmarinic acid, β-caryophyllene and thymol also have some anti-inflammatory functions.


According to the research reality, at present, there are more and more studies on essential oils for daily life and various daily necessities, oregano essential oils can be used for sterilization, as if, antioxidant and other needs, green biomaterials are increasingly subject to light and application potential.

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