Effect of Additives on the Activity of Tannase from <Emphasis Type="Italic">Aspergillus awamori</Emphasis> MTCC9299 |
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| Authors: | Vinod Chhokar Meenakshi Sangwan Vikas Beniwal Kiran Nehra Kaur S Nehra |
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| Institution: | (1) Department of Bio and Nano Technology, Guru Jambheshwar University of Science and Technology, Hisar, 125001, Haryana, India;(2) Department of Biotechnology, Choudhary Devilal University, Sirsa, 125055, Haryana, India;(3) Department of Biotechnology, F.G.M. Govt. College, Adampur, 125052, Haryana, India |
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| Abstract: | Tannase from Aspergillus awamori MTCC 9299 was purified using ammonium sulfate precipitation followed by ion-exchange chromatography. A purification fold
of 19.5 with 13.5% yield was obtained. Temperature of 30 °C and pH of 5.5 were found optimum for tannase activity. The effects
of metals and organic solvents on the activity of tannase were also studied. Metal ions Mg+2, Mn+2, Ca+2, Na+, and K
+
stimulated the tannase activity, while Cu+2, Fe+3, and Co+2 acted as inhibitors of the enzyme. The addition of organic solvents like acetic acid, isoamylalcohol, chloroform, isopropyl
alcohol, and ethanol completely inhibited the enzyme activity. However, butanol and benzene increased the enzyme activity. |
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