Optimization of Microwave-Assisted Technology for Extracting 1-deoxynojirimycin from Mulberry Tea by Response Surface Methodology

Abstract

In order to improve the utilization ratio of mulberry tea 1-deoxynojirimycin (DNJ), mulberry tea was prepared based on the common production process of green tea, and corresponding experimental design and statistical analysis were set using Design-Expert software. The results suggested microwave power 602.28 W and processing time 11.41 min were found to be optimal for microwave-assisted extraction DNJ. The confirmatory experiment showed the coincidence rate of detection was 99.58%. It provided a reference for efficient use of mulberry tea DNJ for people who would drink mulberry tea to control blood glucose levels or to prevent diet-induced obesity.