Parbat Raj Thani
Community Forestry ,Nepal
Title: “Standardization of extraction techniques of picroside-I and picroside-II from “Kutki†(Picrorhiza kurroa Royle ex Benth.)â€
Biography
Biography: Parbat Raj Thani
Abstract
The present investigation entitled “Standardization of extraction techniques of picroside-I and picroside-II from “Kutki” (Picrorhiza kurroa Royle ex Benth.)” was carried out in the department of forest products, Dr. Y. S. Parmar university of Horticulture and Forestry, Nauni, Solan (India) during 2012-2014. The fresh roots and rhizomes of Picrorhiza kurroa were collected from Rohtang area of Himachal Pradesh. The freshly harvested material was ground into uniform powdered form after washing with water to remove the adhering materials and drying in shade. This powdered air dried roots and rhizomes of Picrorhiza kurroa was used for standardization of extraction methods of picroside-I and picroside-II. Four different extraction methods viz. soxhlet, extraction by refluxing, microwave assisted extraction and sonication assisted extraction were tested for extraction of picroside-I and picroside-II from the rhizome of Picrorhiza kurroa. Sonication assisted extraction for 36 minutes with methanol as solvent yielded 44.269 per cent extract with 6.825 per cent picroside-I and 5.291 per cent picroside-II content, which was better in comparison to other methods in terms of time consumption and yield.