【摘要】 本试验旨在研究采用超临界二氧化碳从杏仁中提取油的条件。通过探索粒度、萃取时间、操作压力、萃取温度及添加剂 (二氧化硅 )对杏仁油萃取率的影响 ,结果表明 :粒度、温度和压力会影响杏仁油的萃取率 ;添加二氧化硅 (与原料质量比为 1∶1)可大大提高萃取率 ;在各种萃取条件下 ,萃取速度在第一小时内达到最大更多还原

【Abstract】 With variables of particle size,operating time,working pressure,temperature and addition of SiO 2,the supercritical CO 2 extraction of almond oil was investigated.The following results were indicated:(1) Particle sizes operating time and woking pressure influenced the extraction yield of almond oil;(2)Adding SiO 2 (almond:SiO 2=1∶1,w/w)greatly increased the oil yield;(3)The extracting speed reached its peak point in the first hour under all extracting conditions.更多还原