Equilibrium and kinetic studies of methylene blue and rhodamineb onto prepared activated kaza’s carbons.

Three Activated Kaza’s Carbons viz. NPTC, NLLC andNCC, are prepared from some Bio- Materials – Phaseolus trilobus, Leucena leucocephala and Casurina. These carbonsare used to adsorb dyes Methylene blue and Rhodamine B from aqueous solution. Adsorption equilibrium data and kinetic processes were studied. The Langmuir isotherm provides the best correlation for the experimental data, where as Temkin and Dubinin – Radushkevich (D-R) isotherms also fit to the experimental data. In the kinetic studies the best fit Model was assessed by the squared some of errors (SSE) values. Adsorption of dyes, Methylene Blue ( MB ) and Rhodamine B ( RB ) ,on to adsorbents could be described by pseudosecond order equation. The adsorption process has good co-ordinance with pore diffusion and Elovich equations.

Preparation of activated kaza’s carbons from bio-materials and their characterization.

Prepared three different activated carbons from parts of three different bio-materials viz., Phaseolus trilobus, Leucena leucocephala and Casuarina collected from agricultural field. In the present study phsicochemical and surface characterstics of these prepared carbons have been discussed. For surface characterization FTIR and EDAX methods were used.

Effects of Vitamin E, morin, rutin and quercetin against dox induced oxidative stress.

Doxorubicin (DOX) is a potent chemotherapeutic agent for the treatment of a variety of human malignancies. Increasing oxidative stress appears to play a major model to increase free radical producing and decrease activities of endogenous antioxidant enzymes. The present study, the development of oxidative stress was prevented by using natural antioxidant vitamin E (50 IU/kg body weight) and flavonoids morin, rutin and quercetin a poly phenolic compounds available in plants. The four weeks treatment of flavonoids (20mg/kg body weight) was affectively reduced the oxidative stress by DOX (10mg/kg body weight) on two dose treatment. The flavonoids maintained the biochemical parameters at optimum levels and they were significantly controlled by the flavonoids. The conclusion of this study is that the flavonoids are natural antioxidants, that they can ameliorate the biochemical markers. The authors suggest that the diet rich flavonoids can useful in the protection of certain diseases like cardiomyopathy (CAD, hypertension, heart failure and stroke), diabetes, cancers and oxidative stress etc., and this model can suggests that fields of Biochemistry and Pharmacology had good scope to evaluate the metabolic diseases and disorders.