THE DEFINITIVE GUIDE: SUPERCRITICAL CO2 EXTRACTION PROCESS OF MILLET BRAN OIL

The millet bran oil extracted by supercritical CO2 extraction process contains high unsaturated fatty acids, especially containing up to 67.8% of linoleic acid.

Supercritical co2 extraction distillation of millet bran oil

What is millet bran oil

Millet is a by-product of the processing of millet after being shelled into refined millet. It is rich in various nutrients. The gluten oil produced by it is a healthy oil. The proportion of fatty acids contained is more consistent with the common cooking oil. Nutritional requirements, in addition to food, can also be widely used in medicine, health care products, cosmetics and other industries.

The best process for supercritical CO2 extraction of millet bran oil

The extraction conditions of gluten oil were used as indicators to study the process conditions of supercritical co2 extraction of gluten. The supercritical co2 fluid extraction-rectification study summarizes the effects of extraction pressure, extraction temperature, extraction time, co2 flow rate on oil yield, rectification pressure, and rectification temperature on rectification.

The results showed that the optimum extraction conditions were extraction pressure 30 MPa, extraction temperature 45°C, extraction time 2h, co2 flow 50kg/h, grain size 40 mesh, moisture content 7%. The oil yield under this condition was 19.69%.

Supercritical CO2 fluid fractionation
Supercritical CO2 fluid fractionation
Supercritical CO2 Extraction Machine for Tea Flavor

The most suitable conditions for supercritical co2 rectification of gluten oil are extraction pressure 30 MPa, extraction temperature 45 ° C, extraction time 2 h, co2 flow 50 kg / h, rectification column pressure 10 MPa, rectification temperature rectification I: 40 ° C, fine Distillation II: 45 ° C, rectification III: 50 ° C, rectification IV: 55 ° C.

By measurement, the supercritical extraction method extracts gluten oil containing high unsaturated fatty acids, especially containing up to 67.8% of linoleic acid. The physical and chemical indicators of extracting gluten oil by comparison of supercritical extraction method are better than the commercially available gluten oil. Therefore, fluid extraction-rectification by supercritical co2 is a better method for extracting gluten.

The use of supercritical co2 fluid to extract millet bran oil from millet bran has many advantages, such as high solubility in extraction, faster mass transfer rate, better flow and balance, and good adjustability.

And easy to control, and maintain the biological activity of nutrients in the gluten oil. And avoiding environmental pollution, the process is non-toxic and non-polluting, and achieves clean production.

The millet bran oil extracted by supercritical extraction contains high unsaturated fatty acids, especially containing up to 67.8% of linoleic acid.

Supercritical carbon dioxide extraction of turmeric essential oil

HOW TO CHOOSE THE RIGHT CO2 EXTRACTOR?

CO2 Extraction Machine Buyer’s Guide

As you can imagine, not all supercritical CO2 extractors are made the same.
For more than 30 years, we have customized many CO2 extraction machines (Tabletop CO2 Extractor) for many companies and university laboratories (1 lb CO2 extractor). Because each customer’s CO2 extraction process requirements are different, there are almost no identical machines.

How many liters of CO2 extraction vessel are needed?

The first factor that determines the size of the CO2 extraction vessel is the daily working hours of the plant, which determines the daily extraction batch. The vessel size of the CO2 extractor depends on the biomass to be processed per day.

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How many separators are needed?

How can I custom my separator when I need more terpenes in my How can I custom my separators when need more terpenes in CBD oil extraction process?
Waxes separation and Light oil separation in 1st separator;
Light oil separation in 2nd separator;
To trap lightest and volatile compounds in 3rd separator.
It is important to choose the right vessel size that will meet your current needs as well as future demand.

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How many pressure is best for your CO2 extraction process requirements?

The choice of CO2 extraction pressure is a changing factor. If the extraction pressure is too high, the useless substances in the plant will be extracted, such as wax and chlorophyll. If the extraction pressure is too low, the extraction time will be increased.

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How can the minimum operating costs be achieved?

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Further Reading: CBD Oil CO2 Extraction Machine