Abstract
Essential oils (EOs) are natural products obtained from different parts of a plant, such as flower, leaves, stems, fruits, seeds, roots, barks, or resin. It represents an important part of traditional pharmacopeia practices in healing of human ailments. It is used as raw materials in cosmetics, spices, foods, perfumes, and in treatment of several health disorders. There are several methods for extracting EOs from plants. They are the methods like hydro-distillation, steam distillation, hydro diffusion and cold pressing to name a few. The use of EOs as antimicrobial and pharmaceutical agents for curing various diseases has gained a considerable attraction of researchers in recent times. The complex mixture of EOs and their constituents have been reported to inhibit human pathogens, insects, and another harmful organism. The current review focusses on the chemical bioactive components of EOs, methods of extraction, chemical constituent, different plants as source of extraction and its application towards the treatment of various diseases in our day to day life, in vivo validation of essential oil, nanoformulation of essential oils.
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