Optimization of ultrasonic-microwave assisted extraction of oligosaccharides from lotus (Nelumbo nucifera Gaertn.) seeds

The traditional technology replaced by ultrasonic or microwave assisted extraction has attracted considerable research interest. In order to maximize the yield of different degree polymerized oligosaccharides from lotus seeds, response surface methodology (RSM) was applied for optimization by ultrasound-microwave assisted extraction (UMAE) in this study. The results indicated that the optimal conditions for UMAE of lotus seed oligosaccharides...