26
11.2021

Supercritical carbon dioxide extraction

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If you are familiar with the field of natural cosmetics, then extracts obtained via supercritical CO2 may not be completely new to you.

It can be said that these extracts occupy a very important position among natural active ingredients because they have a greater concentration of active substances and better compatibility with the skin.

In addition, they make it possible to produce natural cosmetics in a sustainable manner. Supercritical CO2 is a revolutionary technology that makes it possible to obtain highly concentrated active ingredients without altering their composition. This results in higher stability and efficacy than other types of extracts, such as aqueous extracts (which require preservatives).

Maybe even if you work in the cosmetic industry, you still don't know how using this supercritical CO2 extract can benefit your business.

Well, don't miss this article, because here we explain everything you always wanted to know about this extract but were afraid to ask (or no one knew how to explain it to you).

What is supercritical CO2 extraction www.careddi.com/brc/66.htm?
For this type of extract, CO2 is used as a solvent. In addition to being chemically stable, this type of solvent leaves no trace and can be recovered at the end of the process.

However, in order to truly act as a solvent, the pressure and temperature conditions must be applied to CO2 above its critical point (hence the name supercritical CO2).

Only when the CO2 is under these supercritical conditions does the gas become a fluid, lipophilic solvent, thus giving it a very high extraction capacity.

The yield of this extraction method is far superior to other methods such as distillation and hydroalcoholic extraction. In addition, in cases where cold-pressure extraction performance is poor, extraction with petroleum solvents (e.g. hexane) instead is ideal. Low or unsuitable feedstock.

Moreover, this type of technique is very versatile, since by simply adjusting the parameters, it is possible to obtain.

Selective extracts: contain mainly the aromatic part of the raw material.
Active extract: contains the "active" part of the raw material.
Total extract: can contain all the lipid components, including the wax or unsaponifiable fraction, or, if desired, only the natural vegetable oils of the raw material.
Carbon dioxide, a harmless gas
Contrary to what many people think, carbon dioxide is not a dangerous gas for humans because it is present in the atmosphere in small amounts and is completely harmless to humans. In fact, every time we breathe in new air, humans exhale carbon dioxide.

When CO2 is present in very high concentrations, problems arise. It is then that excess CO2 - at much higher than normal levels - irreversibly affects people's health and causes the greenhouse effect, which is behind global warming.

This clearly shows that emitting carbon dioxide into the atmosphere does not have a direct impact on human health. What's more: plants also consume CO2 for photosynthesis and to produce oxygen, which clearly shows that it is an essential gas for the ecosystem.

This is why it is important to know that the use of supercritical CO2 extraction is the most sustainable and least polluting process in industry, because the gas can be reused.

But not only that: in addition, its extraction capacity avoids the use of other, less environmentally friendly processes; and no emissions are released during the extraction process.

The main advantages of supercritical CO2 extracts
The advantages of using such extracts are indisputable for the following reasons.

These extracts do not require preservatives: fat-soluble extracts are stable.
They are highly concentrated: this saves on application, as only small doses are needed to obtain maximum effect in cosmetic formulations.
They are very environmentally friendly: these extracts are sustainable since they do not produce emissions during the extraction process. In addition, there are no solvents, additives, metal catalysts or traces of heavy metals.
The aromas produced by these extracts are more natural: this type of extraction allows for high yields and maximum concentration of "aromatic" substances. As a result, the odor obtained is very close to that of the original plant or raw material used for extraction.
They have a longer life: they do not degrade over time, since extraction at low temperatures and in oxygen-free conditions prevents the degradation and/or oxidation of the oil.
GRUP BARCELONESA, your supplier of supercritical CO2 extraction
You may be wondering what makes the extracts we obtain through supercritical CO2 extraction more interesting than other products on the market.

At Grup Barcelonesa, we are partners with the Tunisian manufacturer Actif Precieux, a company whose expertise in the development of such extracts is exceptional.

Thanks to this partnership, we are able to offer our customers in the natural cosmetics sector supercritical CO2 extracts with a higher degree of purity than all other products on the market. While other distributors use additives to speed up the extraction process, our solution is the purest for two reasons.

Refined extraction technology: In order to make the extraction process profitable, no additives (such as alcohol or solvents) are needed. Our supercritical CO2 extracts are able to perform this process based on CO2 alone, without even resorting to said additives to obtain excellent results.
In-depth knowledge of the raw material: botanical information about the various flowers and plants is essential to be able to provide our customers with the best results per extraction and thus obtain a greater proportion of the product. This is possible because in Barcelona we offer our customers co-extracts (active substances of one raw material as a solvent for another raw material in order to obtain the purest extract).
Would you like to know more about our supercritical CO2 extraction?
If you think that supercritical CO2 extracts can be used for the manufacture of natural cosmetics, we will be happy to provide you with all the information you need.

You can contact our sales department via the "Visit Page" button below.

發表於2021.11.26
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