Table 2.

Compounds from microalgae extracted by novel green techniques.

Compound(s) of Interest	Species	Extraction Technique	References
C-phycocyanin Pigments	Spirulina maxima	Ultrasound	[39]
β-carotene	Chlorella sp.	Ultrasound	[40]
Polyphenols Flavonoids	Spirulina platensis	Microwave and Ultrasound	[41]
Lipids	Scenedesmus sp.	Microwave	[42]
Lipids	Scenedesmus obliquus & Scenedesmus obtusiusculus	Supercritical-CO2	[43]
Oil	Spirulina platensis	Supercritical-CO2	[44]
Docosahexaenoic acid	Schizochytrium limacinum	Supercritical-CO2 -vegetable oil	[45]
Lipids, Carotenoids	Chlorella vulgaris	Supercritical-CO2	[46]
Lipids	Chlorella vulgaris	Ultrasound & Bligh and Dyer method	[47]
β-carotene	Spirulina platensis	Ultrasound	[48]
Vitamins Phycocyanin Fatty Acids	Spirulina platensis	Microwave	[49]
Lipids	Chlorella sp.	Microwave and Ultrasound	[50]
Long-chain PUFAs	Schizochytrium sp.	Supercritical-CO2	[51]
Carotenoids Fatty Acids	Spirulina platensis	Microwave and Supercritical-CO2 -etOH	[49]
C-phycocyanin	Spirulina platensis	Ultrasound	[52]
Neutral Lipids	Chlorella vulgaris & Nannochloropsis oculata	Supercritical-CO2	[53]
Chlorophyll	Chlorella vulgaris	Ultrasound	[54]
Lipids	Scenedesmus obliquus	Ultrasound + solvent	[55]