Chemistry of Kupipakwa Rasayanas – A Review
Kupipakwa Rasayanas are very popular and commonly prescribed preparations among the Ayurvedic physicians, and are looked upon as panacea. These are prepared in a specially designed glass bottle by gradual heating immersion in sand bath (Valuka Yantra). Particular chemical processes are involved in these preparations which also bear testimony to the great chemical knowledge prevailing in ancient India. In the present review, the probable chemistry of Kupipakwa Rasayanas has been discussed.
PRELIMINARY QUALITATIVE SCREENING, PHYSICOCHEMICAL STANDARDIZATION AND ANTIMICROBIAL ACTIVITY OF A HERBO MINERAL SIDDHA FORMULATION GANDHAGA
extracting the chemical to target the effect led to suggestion that most drugs are devoid of activity which may due to the in-vitro methods and lack of solubility of the drug. This paves way to support traditional formulations, where drug parts are added as such and processed and the finished product administered with suitable adjuvants (Gunshot method to treat the individual as a whole). The objective of the present study to evaluate the organoleptic characters, acid and basic radicals, pH, phytochemicals, standardize physico chemically to authenticate the sulphur based classical Siddha formulation Gandaka karuppu and also to evaluate the antimicrobial activity. The Results revealed, the presence of sulphate, chloride, carbonate, fluoride and iron and ammonium, acidic pH, no significant antimicrobial activity , higher acid insoluble ash values which might be due to higher mineral content present in the finished product. The Organoleptic characters and other physicochemical values signify the good quality and purity of the herbo-mineral drug Gandhaga karuppu.
Optical rotatory dispersion and absolute configuration—III
Abstract Optical rotatory dispersion measurements on pyrrolidine, piperidine, and tetrahydro-isoquinoline alkaloids indicate that the absolute configuration of the α-asymmetric center may be assigned directly from the dispersion curve, provided either that the nitrogen atom is not protonated, or that the compound contains a chromophore absorbing above 200 mμ.