Proteases are hydrolytic enzymes that slice peptide bonds between amino
acid residues and these enzymes have various industrial applications including
detergent, food, pharmaceutical, leather and diagnostic reagent industries.
Among them, alkaline proteases, the most commercialized enzymes in the
industry, are of particular interest due to their potential applications in the
detergent industry as cleaning additives. In this study, a novel alkaline
protease from Bacillus sp. strain EL-GU1 was
reported showing highest activity at pH 6 and 25°C. The novel protease was
purified by using ammonium sulfate precipitation and identified by 16S rDNA
sequencing. Highest activity was observed as 3300 µmol/min-1mg-1 when casein used as a
substrate. Kinetic parameters of the enzyme were determined; KM, Vmax,
kcat and catalytic efficiency values were calculated as 1.4 mM, 1
mM/s, 2.10-7 s-1, 0.14 10-7 s-1M-1,
respectively. These results indicated that the novel cold active protease from Bacillus sp. strain EL- GU1 can be a good
candidate for the detergent industry
One
of the important hydrolytic enzymes are proteases that slice peptide bonds
between amino acid residues. Proteases have various industrial applications
including detergent, food, pharmaceutical, leather and diagnostic reagent
industries. Among them, the most commercialized enzymes are alkaline proteases
in the industry. Due to their potential applications in the detergent industry
as cleaning additives, they are of particular interest. In this study, a novel
protease from Bacillus sp. strain EL-GU1 was
reported showing highest activity at pH 6 and 20°C. The novel protease was
purified by using ammonium sulfate precipitation and identified by 16S rDNA
sequencing. Highest activity was observed as 3300 µmol/min-1mg-1 when casein used as a
substrate. Kinetic parameters of the enzyme were determined; KM, Vmax,
kcat and catalytic efficiency values were calculated as 1.4 mM, 1
mM/s, 2.10-7 s-1, 0.14 10-7 s-1M-1,
respectively. These results indicated that the novel cold active protease from Bacillus sp. strain EL- GU1 can be a
good candidate for the detergent industry.
Primary Language | English |
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Subjects | Engineering |
Journal Section | Articles |
Authors | |
Publication Date | July 31, 2019 |
Published in Issue | Year 2019 |