CERTAIN PROPERTIES OF Β-GLUCOSIDASE FROM YUCCA GLORIOSA FLOWERS

Area of Science:

• Biotechnology
• Plant Biochemistry
• Medicinal Chemistry

Background:

• Steroid drug synthesis relies on efficient plant-derived precursors.
• Yucca gloriosa is a known source of tigogenin, crucial for steroid production.
• Yucca gloriosa flowers offer advantages over leaves for tigogenin extraction.

Purpose of the Study:

• To investigate the properties of beta-glucosidase from Yucca gloriosa flowers.
• To identify enzyme forms and their substrate specificities.
• To determine optimal conditions for the flower beta-glucosidase for tigogenin production.

Main Methods:

• Enzyme isolation and characterization from Yucca gloriosa flowers.
• Assay of beta-glucosidase activity using natural and synthetic substrates.
• Determination of optimal pH and temperature for enzyme activity.
• Thermal stability assessment of the enzyme.

Main Results:

• Two forms of beta-glucosidase were identified with differing substrate specificities.
• The first enzyme form efficiently hydrolyzes both natural and synthetic substrates.
• Optimal conditions for the first enzyme form were pH 6.3 and 47°C.
• The flower enzyme's optimal temperature (47°C) is higher than the leaf enzyme's (37°C).
• Enzyme activity significantly decreased at higher temperatures (57°C and 67°C).

Conclusions:

• Yucca gloriosa flowers are a promising source for tigogenin production due to their high enzyme activity.
• The identified beta-glucosidase form from flowers is suitable for industrial steroid synthesis.
• Optimized conditions enhance the efficiency of tigogenin extraction from Yucca gloriosa flowers.