The application discloses a high-purity
mogroside effective component gradient
coupling extraction process, and creatively deeply couples three technologies of gradient low-temperature
plasma wall breaking, double-medium synergistic
phase change extraction and membrane
coupling dynamic purification in view of the problems of low extraction rate, poor purity, easy damage of heat-sensitive components and
bitter taste residue in the prior art. Through the gradient
plasma treatment of 'first weak and then strong', the mild and efficient wall breaking of the
cell wall is realized at <=25 DEG C. The synergistic effect of the composite
enzyme solution and the
dimethyl carbonate /
ethanol compound extraction agent is utilized to realize the efficient enrichment of the
mogroside V and the synchronous separation of the bitter impurities. Then, the double-stage membrane
coupling technology of
ultrafiltration-
nanofiltration is used for dynamic purification at low temperature, and the traditional resin process is replaced. The process produces the technical effect of '1+1+1>3' through the cooperation of parameters and steps, the extraction rate of the
mogroside V of the
momordica grosvenori is >=90%, the purity of the product is >=98%, the
polysaccharide retention rate is >=90%, and the bitter impurities are completely removed.