Purification and Characterization of Invertase from Aspergillus terreus
Abstract
Invertase was produced from Aspergillus terreus under optimized culture conditions at six days of incubation with pH 7.0 and 25°C, in Czapek Dox media by solid state fermentation (SSF). The enzyme was partially purified by dialysis followed by DEAE-column chromatography. Purification fold and enzyme yield, while stabled at 20-40°C with pH 3.0-5.0. The activation energy for substrate conversion was 1.87Kcal/mol. Thin layer chromatography (TLC) shown that glucose and fructose were the products of sucrose hydrolysis. The partial purified enzyme was immobilized with different metals, while Fe+3 gave highest activity with residual activity 76.52%. Storage activity for immobilized enzyme at 4°C after 2 and 4 weeks were 70.94 % and 58.42% respectively.
Key words: Invertase, Purification, ImmobilizationTo list your conference here. Please contact the administrator of this platform.
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ISSN (Paper)2224-7467 ISSN (Online)2225-0913
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