Extraction & assessment of physicochemical parameters of Rubus Laciniatus by using classical and instrumental technique

Abstract

ABSTRACT

In this work extraction process was used to study the various parameters of RUBUS LACINIATUS. Dye extracted from the fruits of sample in aqueous medium.  Acidic and basic characteristics of dye were determined by classical method as well as pH technique. Conductivity method was used to evaluate the molar and specific conductance at 25±1⁰C. Viscometer was used to determine the viscosity of extracted dyes from 10±1⁰C to 50±1⁰C. Further, elucidated the different type of parameters such as relative, specific and reduced viscosity respectively. Inspite, of these graphical and theoretical methods was applied for the determination of intrinsic viscosity. Surface tension of dye measured at 25±1⁰C by distinct methods. By using surface tension the surface excess concentration was examined with the help of Gibbs adsorption isotherm modal. Activation energy and frequency factor estimated from viscosity at 283±1k^- to 323±1k^-. Gibbs free energy and activation enthalpy determined by co-relating the activation energy and frequency factor.