Application of Supercritical Fluid Extraction (SFE) of Tocopherols and Carotenoids (Hydrophobic Antioxidants) Compared to Non-SFE Methods

Natural antioxidants have renewed value for human health and the food industry. Green labeling is becoming an important attribute consumers impacting processing formulations. Clean label another that ranked third after “free-from” claims “a good source” of nutrient claims. attributes also are higher than local, seasonal, organic. Techniques able to preserve valuable characteristics natural antioxidants, while eliminating even trace amounts solvent residues from their extraction processing, important. Supercritical fluids (SCF) effective green technology can be adopted antioxidants. This review focused on application supercritical carbon dioxide (SCCO2) extracting hydrophobic antioxidant compounds with emphasis oilseed crops carrots. The information provided about parameters helps guide optimization yield tocopherols carotenoids. Pressure most parameter tocopherol among other parameters, such as temperature, time, CO2 flow rate. For carotenoid extraction, both pressure temperature a large impact yield. Higher yields greater purity extracts, larger retention bioactivity main advantages fluid (SFE) in comparison conventional techniques. benefits SCF may open new opportunities valuable, co-streams use bioactive compounds.