CGTase was produced by inoculating Bacillus sp. C26 in 1 L of Horikoshi II medium and incubating at 37 °C and 200 rpm for 48 h. Cells and insoluble materials were removed by centrifugation at 4000 × g and 4 °C for 15 min. The cell-free supernatant was added with ammonium sulfate (80% saturation) and left at 4 °C overnight to precipitate the enzyme. The precipitated enzyme was dissolved in 50 mM phosphate buffer, pH 7.0 and further purified using dialysis bag with molecular weight cut-off 8000 Dalton. The activity of the partially purified enzyme was determined by phenolphthalein colorimetric method [18]. The protein concentration of the enzyme was determined by Folin Ciocaltue method [19]. This partially purified CGTase was used in the further step. The total activity and specific activity of crude enzyme were 1064 U and 15.59 U/mg, respectively. After partial purification, a 27.9-fold purification was achieved. The specific activity was increased up to 434.2 U/mg.