Recent Advances in Supercritical CO Extraction of Pigments, Lipids and Bioactive Compounds from Microalgae.

Supercritical CO extraction is a green method that combines economic and environmental benefits. Microalgae, on the other hand, is a biomass in abundance, capable of providing a vast variety of valuable compounds, finding applications in the food industry, cosmetics, pharmaceuticals and biofuels. An extensive study on the existing literature concerning supercritical fluid extraction (SFE) of microalgae has been carried out focusing on carotenoids, chlorophylls, lipids and fatty acids recovery, as well as the bioactivity of the extracts.

Extracts from Protect Mesenchymal Stromal Cells from Oxidative Stress Induced by Hydrogen Peroxide.

Microalgae as unicellular eukaryotic organisms demonstrate several advantages for biotechnological and biological applications. Natural derived microalgae products demand has increased in food, cosmetic and nutraceutical applications lately. The natural antioxidants have been used for attenuation of mitochondrial cell damage caused by oxidative stress.

Supercritical CO Extraction of High-Added Value Compounds from : Experimental Design, Modelling and Optimization.

Microalgae are well-known for their high-added value compounds and their recovery is currently of great interest. The aim of this work is the recovery of such components from through supercritical fluid extraction (SFE) with CO. The effect of the extraction temperature (40-60 °C), pressure (110-250 bar), and solvent flow rate (20-40 g/min) was tested on yield, the extract's antioxidant activity, and the phenolic, chlorophyll and carotenoid content.

Experimental Design and Optimization of Recovering Bioactive Compounds from through Conventional Extraction.

Microalgae contain an abundance of valuable bioactive compounds such as chlorophylls, carotenoids, and phenolics and, consequently, present great commercial interest. The aim of this work is the study and optimization of recovering the aforementioned components from the microalgae species through conventional extraction in a laboratory-scale apparatus using a "green" mixture of ethanol/water 90/10 /. The effect of three operational conditions-namely, temperature (30-60 °C), duration (6-24 h) and solvent-to-biomass ratio (20-90 mL/g), was examined regarding the extracts' yield (gravimetrically), antioxidant activity, phenolic, chlorophyll, and carotenoid contents (spectrophotometric assays), as well as concentration in key carotenoids, i.