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Table 3 Lipid level and composition in biofilms and their isolated components

From: Applications of microalgal biofilms for wastewater treatment and bioenergy production

Lipids/fatty acids Formulas Biofilm #52 BAPS-52-1 BAPS-52-2 BAPS-52-3 BAPS-52-4 BAPS-52-5
Lipid concentration   6.3 ± 1.2 5.2 ± 1.0 6.3 ± 1.8 6.9 ± 2.1 25.1 ± 4.8 20.2 ± 5.2
Lauric acid C12:0 4.3 ± 0.9 10.0 ± 2.2 3.0 ± 0.8 2.0 ± 0.7 ND ND
Myristic acid C14:0 1.3 ± 0.2 ND 1.2 ± 0.3 2.2 ± 0.4 6.1 ± 1.9 5.2 ± 1.3
Palmitic acid C16:0 28.3 ± 5.1 27.1 ± 6.2 26.8 ± 4.8 28.1 ± 6.0 28.6 ± 6.0 31.0 ± 6.0
Stearic acid C18:0 7.01 ± 1.8 4.0 ± 0.9 3.3 ± 0.7 21.8 ± 5.0 3.2 ± 0.8 1.2 ± 0.3
SAFAs   40.9 ± 8.5 41.1 ± 8.2 34.3 ± 6.8 53 ± 10.6 37.9 ± 7.2 37.4 ± 6.8
Palmitoleic acid C16:1 7.4 ± 1.6 0.2 ± 0.1 8.9 ± 2.1 8.8 ± 1.6 31.1 ± 7.2 33.0 ± 6.3
Oleic acid C18:1 8.5 ± 1.9 5.2 ± 1.3 16.8 ± 4.0 5.4 ± 1.3 1.6 ± 0.3 2.1 ± 0.5
Gondoic acid C20:1 ND ND 0.5 ± 0.2 ND ND ND
MUFAs   15.9 ± 4.0 5.5 ± 1.3 26.2 ± 5.3 13 ± 3.1 32.7 ± 7.1 35.1 ± 6.0
Hexadecadienoic acid C16:2 3.7 ± 0.5 4.5 ± 1.0 0.6 ± 0.1 ND 3.1 ± 0.9 1.1 ± 0.2
Linoleic acid C18:2 12.1 ± 2.8 16.2 ± 4.2 11.4 ± 3.9 8.0 ± 2.8 0.8 ± 0.2 0.9 ± 0.2
Linolenic acid C18:3 9.8 ± 2.1 15 ± 3.9 11.5 ± 3.2 12.6 ± 3.0 0.7 ± 0.3 ND
Arachidonic acid C20:4 ND ND ND ND 5.0 ± 2.8 2.5 ± 1.8
Eicosapentaenoic acid (EPA) C20:5 4.2 ± 1.0 ND ND ND 12.1 ± 4.4 15.0 ± 4.9
Docosahexaenoic acid (DHA) C22:6 1.1 ± 0.3 ND ND ND 4.1 ± 1.9 3.1 ± 1.5
PUFAs   30.9 ± 6.9 35.7 ± 7.5 23.5 ± 5.0 20.1 ± 4.2 25.8 ± 5.1 22.6 ± 4.0
Others   12.3 ± 4.2 17.7 ± 5.8 15.8 ± 3.8 14 ± 4.1 3.3 ± 1.1 4.9 ± 1.9