Abstract
Mechanochemical-assisted extraction (MCAE) method was applied to the extraction of polysaccharides from the bamboo leaves. The MCAE parameters were investigated via response surface methodology design experiments, the processing conditions were optimized as follows: milling time 30 min, liquid-solid ratio 2:1, extraction time 48 min. Under these conditions, the experimental value of (11.40 ± 0.12)% corresponded with the value predicted by the model and was higher than super fine-grinding extraction (SFGE) of (11.17 ± 0.15)% and heat reflux extraction (HRE) of (10.92 ± 0.17)%. The mechanism of mechanochemical-assisted extraction (MCAE) was discussed based on scanning electron microscope. Compared to HRE, the extraction time was significantly shortened, the water consumption and extraction temperature were also lowered. MCAE is a good choice for the efficient extraction of polysaccharides from bamboo leaves.
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