SUBCRITICAL ÑÎ2-EXTRACTS FOR EDIBLE OILS MANUFACTURING
When producing a vegetable oil, the question of the efficient use of spicy aromatic
raw materials becomes rather important.
The extracts of herbs and spices received using subcritical liquid carbon dioxide
(ÑÎ2) extraction are absolute substitutes of dry spicy aromatic raw materials
for oil manufacturing.
The application of subcritical ÑÎ2-extracts allows to fully utilize the natural
resources of the plants, to raise the effects and quality of various products.
An advantage of the extracts is also the fact that they keep digestible substances,
ether oils, water-soluble vitamins and others pharmacologically active compounds
of the original plants.
The developed subcritical liquid carbon dioxide (ÑÎ2) extraction technology enables
manufacturing of high quality food-grade products that meet all the necessary
requirements to the highest level. The extracts possess high dissolving ability
and are totally free of harmful substances.
The aroma of ÑÎ2-extracts is much richer and deeper than the one of the natural
dry spices.
Moreover, ÑÎ2-extracts increase shelf life of the oil and protect it from rancidity
as they contain powerful natural antioxidants. For example, a subcritical ÑÎ2-extract
of rice or millet bran can prevent fast rancidification of mustard oil, while
not changing the taste and smell of the oil.
The best way to introduce ÑÎ2-extracts is at the final stage of a technological
chain of oil production. In order to save oil's initial properties and improve
its organoleptic properties, we recommended using the following subcritical ÑÎ2
extracts:
- parsley - 750g per 1 ton of deodorized oil;
- dill - 250 g per 1 ton of deodorized oil;
- dill, celery and pepper - 250 g per 1 ton of oil.
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