A rapid method was developed for the evaluation of forskolin in Coleus forskohlii Briq. (Lamiaceae). Forskolin was quantitated in the root and stem of dried C. forskohlii and in 17 market products by reversed-phase liquid chromatography (LC) with a photodiode array detector at 210 nm. The temperature was held constant at 30 degrees C, and the retention time of forskolin was approximately 6.8 mi...

Ever since the discovery of the element iodine by Courtois (1) in 1812 and the first clinical uses of this substance in the treatment of goiter by Prout (2) in 1816 and by Coindet (3) in 1820, almost continuous researches on the relationship of iodine to thyroid function have been in progress. The greatest obstacle in the way of these investigations has been the lack of a reliable method for th...

The organic source of nutrients would be a promising practice for Valeriana jatamansi cultivation which maintains its curative value. A set experiments was conducted at Hill Zone West Bengal, Kalimpong two consecutive cycles to standardize nutrient management in V. optimum growth and economic yield. Different sources such as farm yard manure (FYM), bio-fertilizer (BF), vermicompost (VC) were ap...