Figure 7: 500 MHz 1H NMR spectra of FAMEs of algal oils. Spectra 1= Tetraselmis (TSG4F2SPS), spectra 2 = TSG4F2SPSP2 and spectra 3 = Spirulina (SPRM6). Signals marked 1=C18:1; 2 and 4=C18:2; 3, 5 and 6=C18:3 + C22:6.