【摘要】 采用超临界CO2流体萃取技术脱除蒙古口蘑中脂类及色素物质,并研究其对蒙古口蘑多糖提取率的影响。通过正交试验方法确定超临界CO2流体萃取的最佳工艺条件为:萃取压力30MPa、萃取温度45℃、萃取时间60min、CO2流量25L/h,萃取率为2.06%。萃取后所得蒙古口蘑粉为乳白色,风味纯正,脂肪含量0.01%。以其为原料提取蒙古口蘑多糖,多糖色泽乳白,无异味,提取率为6.24%,分别为溶剂处理及未处理试样的4.2倍和1.8倍。更多还原

【Abstract】 To degrease and to decolor on mongolia mushroom through supercritical CO2 fluid extraction, the effects of this methodon polysaccharide extraction were studied . The optimum conditions of supercritical CO2 fluid extraction were determinedthrough orthogonal test: the pressure 30 MPa, temperature 45℃, time 60min, CO2 flow 26L/h. The percentage of extraction is2.11%. The color of product is milk white, the flavor pure and the fat content 0.01%. By using this material to extract the mongoliamushroom polysaccharide, the extraction rate of polysaccharide is 6.24% and the polysaccharide’s color is milk white with nostrange smell. The extraction rate is 4.2 times and 1.8 times in comparison with non- supercritical CO2 fluid extraction andtreatment by solvent respectively.更多还原