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Essential oil is extracted from many aromatic medicinal plants by hydro distillation, solvent extraction, cold pressing, and supercritical fluid extraction method. This essential oil has used in various products such as cosmetics, household cleaning products and air fresheners, hygiene products, agriculture, and food, as well as in medicinal uses. Additionally, they possess various medicinal activities, including antioxidant, anti-inflammatory, antimicrobial, antiviral, and anti-carcinogenic. Essential oil also shows digestive activity and photo toxicity like, lavender essential oil is affecting the gastrointestinal function through activation of the vagus nerve and citrus bergamia form mono- and bi-adducts under UV light, and subsequently lead to mutagenicity and cytotoxicity.
