Author(s): Komal Dwivedi, Dr. Ekta Sharma and Dr. Nargis Fatima

Abstract:
Medicinal plants are attaining a large amount interest recently because of their use in ethno medicine treating common disease such as cold, fever and other medicinal claims are now supported with sound scientific evidences. Study on medicinal plants started with extraction procedures that play a critical role to the extraction outcomes and also to the consequent assays performed. A huge range of technologies with different methods of extraction is available nowadays. Hence, this review aim to describe and compare the most commonly used methods based on their principle, strength and limitation to help evaluating the suitability and economic feasibility of the methods. The majority of the phytochemicals from plant sources such as phenolic and flavonoids have been reported to have positive impact on health and cancer prevention. Extraction is the key process for natural dyes and secondary metabolites for making eco-friendly dyed and finished fabric in global textile industries. In recent days their demands are increasing towards ecofriendly textiles especially in terms of dying, printing and finishing. Now a day many natural dyes and pigments are available for printing and dyeing but for finishing of textile there are so many challenges for extraction of secondary metabolites such as alkaloids, flavonoids, oils, steroids and terpenoides In functional textiles the microencapsulation technique is preferred to incorporate antimicrobial property, deodorant or fragrance property, fireproof property and wound healing property.