Nilima S. Rajurkar

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The antioxidant activity of wheatgrass, which is consumed as a dietary supplement, was estimated at different levels. The methods employed include FRAP (ferric reducing antioxidant power), ABTS (2,2'-azobis-3-ethylbenzthiazoline-6-sulfonic acid) and DPPH (1,1'-diphenyl-2-picrylhydrazyl) assays. Aqueous and ethanol extracts of wheatgrass grown under(More)
Salinity is an important abiotic environmental stress factor threatening agricultural productivity throughout the world. The detrimental effects of salinity stress are observed at cellular, organ and whole plant level at osmotic phase (early/short-term response) and ionic phase (late/long-term response). High salinity exerts its negative impact on major(More)
Elemental analysis of some herbal plants used in the control of diabetes has been done by the techniques of Neutron Activation Analysis (NAA) and Atomic Absorption Spectroscopy (AAS). The elements Mn, Na, K, Cl, Al, Cu, Co, Pb, Ni, Cr, Cd, Fe, Ca, Zn and Hg are found to be present in different plants in various proportions.
(125)I sources were prepared by adsorption of (125)I on palladium-coated silver wires. The effect of reducing agent on percentage adsorption of (125)I was studied and the amount of adsorbed activity on source core was studied by repeated adsorption cycles. The activity per source in the sources produced from the same batch varied with coefficient of(More)
The Adiantum capillus veneris was screened for phytochemicals and metal content. The antioxidant activity was also determined by different methods. It was observed that it contains 8.3 % moisture, 11.44 % ethanol extractable matter and 24.00 % water extractable matter. The soxhlet extraction of Adiantum capillus veneris showed the presence of phenolics and(More)
The present paper deals with the determination of the self-diffusion coefficients of 134 Cs(+) ions in CsI, CsBr and CsCl over the concentration range of 5 x 10(-6)-0.01 M and of electrolyte diffusion coefficients of CsI, CsBr and CsCl (5 x 10(-5)-0.1M) labelled with 134 Cs(+) in 1% agar gel at 25 degrees C. These diffusion coefficients are compared with(More)
Membranes for preconcentration of molecular iodine were developed by two different routes: (i) UV-grafting of 1-vinyl-2-pyrrolidone in the pores of microporous poly(propylene) host membrane (grafted membrane), and (ii) physical immobilization of preformed poly(vinylpyrrolidone) (PVP) in a plasticized cellulose triacetate matrix to form the polymer inclusion(More)
I bone densitometry sources find extensive application in the diagnosis of osteoporosis by using single photon absorption (SPA) technique. Silver pellets of size ~ 2.5 mm (f) x 0.6 mm (l) were developed as base matrix for adsorption of I. Determination of specific surface area and pore size analysis of plain silver and palladium coated silver pellets was(More)
A molecular iodine selective membrane has been used for preconcentration of I(2) generated in situ by iodometric reaction of IO(3)(-) with excess I(-) in acidic medium (pH 1-2). This iodometric reaction amplifies the iodine content six times resulting in enhancement of analytical response ranging from three times for molecular methods to six times for(More)
Electrolyte diffusion coefficients of CsBr in water have been measured using 137Cs isotope with an open ended capillary technique without stirring. The measurements were done at 25 degrees C over the concentration range of 10(-6) -0.25 M and the measured values are compared with the theoretical values of diffusion coefficients estimated on the basis of(More)