Amylolytic activity of Byssochlamys fulva

Area of Science:

• Enzymology
• Biochemistry
• Microbiology

Background:

• Enzymes are crucial biological catalysts with diverse industrial applications.
• Glucoamylases are important enzymes for starch hydrolysis.
• Identifying novel enzymes with desirable properties is essential for biotechnological advancements.

Purpose of the Study:

• To investigate the production and properties of glucoamylase from Byssochlamys fulva.
• To characterize the optimal activity conditions and kinetic parameters of the enzyme.

Main Methods:

• Enzyme production by Byssochlamys fulva.
• Enzyme activity assays at varying temperatures and pH.
• Determination of kinetic parameters (Km, Vmax) using amylopectin.
• Molecular weight estimation via gel filtration.

Main Results:

• Byssochlamys fulva secretes a glucoamylase (EC 3.2.1.3).
• The enzyme exhibits maximal activity at 50°C and a broad pH optimum of 4.0-5.2.
• Kinetic analysis revealed Km of 0.15% and Vmax of 17.9 mg glucose L⁻¹ min⁻¹ for amylopectin.
• Estimated molecular weight of the glucoamylase is 34 kDa.

Conclusions:

• Byssochlamys fulva is a source of a robust glucoamylase.
• The enzyme's stability and broad pH optimum suggest potential for industrial use in starch processing.
• Further research can explore enzyme purification and application optimization.