运用超临界CO2萃取技术,从韭菜籽中萃取出韭菜籽油,研究韭菜籽粉碎粒度、萃取压力、萃取温度、萃取时间及CO2流量对萃取率的影响。结果表明,韭菜籽粉碎粒度为50~60目,萃取压力为22~25MPa,萃取温度为45℃,萃取时间为2.5h,CO2流量为3.0L/h,该条件下萃取率达17%以上。
The seed oil of Allium tuberosum is extracted by supercritical CO2 fluid extraction, and the result shows that granule sizes 50~60 mesh, extraction pressure 22~25 MPa, extraction temperature 45 ℃, extraction time 2.5 h and CO2 flow rate on the production 3.0 L/h, after investigating the ifluences of above-mentioned three factors on oil yield, which reached above 17% under the feasible operating conditions.