Qualitative Analysis of Aflatoxin from Aspergillus flavus isolates

Different isolates of Aspergillus flavus were isolated from five varieties of groundnut. These isolates were grown on liquid SMKY medium. By using TLC the cultural filtrate produced by these isolates were screened for Aflatoxin production. About 80% of A. flavus isolates were found to produce aflatoxin, out which 100% isolates produces aflatoxin (B1), 30% isolates produces B1 and B2, 10% isolates produces B1 and G1 aflatoxin

Potentiostatic studies on indirect electrochemical reduction of vat dyes

Dispersed vat dyestuffs can be electrochemically reduced by indirect electrolysis using ironetriethanolamine complex as a reducing agent. The application and mechanism of indirect electrolysis as a reduction technique are described in detail in this paper. Electrochemically reduced vat dye is tested on a laboratory scale in dyeing experiments, and the results of different reduction conditions are discussed. The influence of the concentration of the complex-system on the build-up of colour depth, shade and fastness is discussed and compared with samples of the standard dyeing procedure using sodium dithionite as the reducing agent. The new process offers environmental benefits as well as prospects for improved process stability, because the state of reduction in the dye-bath can be readily monitored by measuring the reduction potential