超临界二氧化碳流体萃取啤酒花的工艺参数选择

Selection of Technological Parameters on Hop by Supercritical CO_2 Fluid Extraction

以颗粒啤酒花为原料，采用超临界CO2流体萃取可明显降低α-酸损耗，提高啤酒花的利用率。适宜的工艺参数为：直径1mm左右的粉碎啤酒花颗粒，萃取压力20～25MPa，萃取温度40～50℃，革取时间3～4h，分离压力5～6MPa，分离温度35～55℃，CO2流量40～45L／h。

The hop concrete was produced with dried hop pellet by the supercritical CO2fluid extraction which decreased the α-acid loss and increased the use rate of hop. The suitable technological parameters were 1 mm in diameter of the smashed hop pellet, extraction pressure,20～25 Mpa extraction temperation 40～45℃extraction time 3～4 hr, separation pressure 35～55 ℃, separation temperature 35 ～55℃, and the rate of CO2 flow 40～45 L/h..