Coffee oil contains some unhealthy substances, among which the diterpenes compound caffeol (cafestol) and coffee white alcohol (kahweol) will increase the concentration of triglycerides and cholesterol in the blood.
Studies have pointed out that drinking 60 mg of coffee oil a day is enough to increase the low-density lipoprotein cholesterol and triglycerides in the body. If the coffee bean contains 1% coffee oil, if you drink more than 6 grams of coffee, you can If you consume more than 60 mg of coffee oil, it is not good for your health.
We conducted an experiment using supercritical extraction technology to remove coffee grease.
Supercritical CO2 extraction machine for experiment
Crush to coffee bean, about 500 grams
Pressure (20MPa) extraction for 25 minutes
Extraction 1 Obtained 23 grams of coffee extract
Pressure (30MPa) extraction for 40 minutes
Extraction 1 Obtained 28 grams of coffee extract
Extract obtained total of 5.3g.
Coffee powder after extraction.
The extract is 500g, and the extract is 56.3g.
Supercritical CO2 fluid extracts fat from coffee beans
Pulverization degree:80 mesh
Extraction pressure: 30 MPa
Extraction temperature: 50°C
Separation pressure I: 10 MPa
Separation I temperature: 60°C
Separation pressure II: 5 MPa
Separation II temperature: 25°C
Extraction time:65 min