The Effect of Increase of Concentration of Formaldehyde in The PEM of 1.5 31211 SMJ8 on the Proton Release and Degree of Mo6+ Reduction to Mo4+ during the Exposure to Sunlight

Abstract

1.531211SMJ8 Jeewanu, the autopoeitic eukaryote, was prepared under oxygenic conditions and the effect of addition of different concentrations of formaldehyde in the PEM on the degree of  Mo ⁶⁺ reduction to Mo⁴⁺and the proton release during exposure to sunlight was investigated. It was observed that on exposure to sunlight, the colourless form Mo⁶⁺ is changed to blue coloured Mo⁴⁺ in the PEM. The blue colour appeared after 10-15 minutes of exposure. The intensity of the blue colour was measured as absorbance with the help of a double cell photoelectric colorimeter. The pH of the five PEM solutions having different concentrations of formaldehyde was measured with the pH meter at different exposure period. The optimum formation and growth of the Jeewanu took place only up to 5.68% formaldehyde concentration in the PEM. Further increase in the concentration of formaldehyde in the PEM hinders the Jeewanu formation. The increase in the photochemical release of protons with increasing period of exposure was sharper in lower concentrations of formaldehyde in the PEM

Keywords: SMJ8, Jeewanu, PEM, autopoeitic, eukaryote, pH, formaldehyde, colour intensity