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Ua66/7/2 Hilltopper News, Wku Chemistry

WKU Archives Records

Newsletter created by and about the WKU Chemistry department.

Alkali Extraction Test As A Predictor For Self-Heating In Coal, Arshad Parvez

Masters Theses & Specialist Projects

The self-heating of coal is a serious problem that has always affected the coal industry. Self-heating has been studied around the world for more than 100 years by many investigators, yet no accurate method of predicting self-heating in coal has been developed.

The objective of this research was to investigate the factors contributing to the self-heating in coal and to develop methods to predict the self-heating in coal and to develop methods to predict the self-heating susceptibility of various coals. A data bank containing analytical data, transportation histories, and results from laboratory tests was established at Western Kentucky University. A …

The Esterases Of The Galleria Mellonella Larvae, Salmah Juraimi

Masters Theses & Specialist Projects

Some properties of esterases of the greater wax moth larvae, Galleria mellonella (L.) were examined and the enzyme partially purified. Tris buffer was chosen as the buffer system over veronal buffer. The former causes less hydrolysis of the acetylsalicylic acid. Esterase activities were determined with acetylasalicylic acid in tris buffer (00.05 M, pH 7.85 with 0.1 M EDTA) and with acetyl-p-hydroxybenzoic acid in the same buffer. The enzyme was partially purified by combination of acetone powder preparation, ammonium sulfate precipitation, ion-exchange chromatography, and gel filtration.

The starting enzyme preparation was obtained from aceton powder preparation. The ratio of esterase activity …