Study on Extraction Process of Grey Jujube Oligosaccharides
Ultrasonic extraction process was used to extract grey jujube oligosaccharides.Taking yield of oligosaccharides as an index,based on a single factor experiment,orthogonal experiments were used to optimize extraction process.The obtained optimal ultrasonic extraction process conditions for grey jujube oligosaccharides were ultrasonic power 200 W,temperature 60℃,extraction time 40 min,and solid-liquid ratio 1∶10 g/mL.Under these conditions,three repeated experiments were conducted with a yield of 1.38%,and the grey jujube oligosaccharides had the functions of promoting the growth of Bifidobacterium.
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