Biosynthesis of Pullulan and Its Applications in the Food Industry

Abstract:

Pullulan is an extracellular water-soluble polysaccharide synthesized by Aureobasidium. Due to its unique film-forming properties, biodegradability, and biocompatibility, pullulan has attracted considerable attention in the food industry. In recent years, pullulan has played an important role in areas such as food additives and food preservation. However, its industrial production faces challenges such as low yields and high production costs, which limit its widespread application in the food industry. The author reviews and summarizes the research progress in pullulan-producing strains, factors influencing biosynthesis, and regulatory mechanisms, providing insights for optimizing low-cost fermentation processes and enhancing the utilization of pullulan in the food industry.