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Table 4 Metabolites of the MCEs from different solvent systems and their respective retention times obtained by GC–MS

From: Phytochemical screening, metabolite profiling and enhanced antimicrobial activities of microalgal crude extracts in co-application with silver nanoparticle

Compounds Rt (min) HEX MET ETH
N. oculata T. suecica Chlorella sp. N. oculata T. suecica Chlorella sp. N. oculata T. suecica Chlorella sp.
(%) (%) (%) (%) (%) (%) (%) (%) (%)
Fatty acid
 Tetradecanoic acid 29.26     1.06 0.76 2.41    
 n-Hexadecanoic acid 33.6        5.73 9.75 3.83
 9,12,15-Octadecatrienoic acid, (Z,Z,Z)- 37.1        12.08   
 1-Nonadecene 34.2        3.73   10.74
 n-Tetracosanol-1 38.1         1.26 6.76
 Ergost-7-en-3-ol 55.7 2.12 14.30 16.58       
 Ergost-5-en-3-ol, (3.beta.,24r)- 54.7         12.33  
Alkane
 Eicosane 43.4 3.55 2.67 1.56       
Ester  
 9,12-Octadecadienoic acid, methyl ester 32.07     4.22   1.58    
 7,10,13-Hexadecatrienoic acid, methyl ester 32.17     5.59 0.48 1.52    
 Hexadecanoic acid, methyl ester 32.79     5.55 10.92 6.75    
 9,12,15-Octadecatrienoic acid, methyl ester, (Z,Z,Z) 36.3     16.83 13.23 7.34    
 Diisooctyl phthalate 43.90 2.23 4.15 2.73 6.28 6.97 12.43    
 1,2-Benzenedicarboxylic acid, bis (2-methylpropyl) ester 31.4   0.26 12.41       
 Diethyl Phthalate 25.1        3.40 5.68 2.79
Phenol
 2,4-Di-tert butylphenol 23.1     4.06 1.2 0.98    
 Cont. Phenol, 2,2′-methylenebis[6-(1,1-dimethylethyl-4-methyl- 41.8 6.69   1.69       
Terpene
 Neophytadiene 30.9 1.77 0.42 11.28 8.96 4.4 6.99 9.24 13.57 19.81
 Phytol 36.5 29.49 8.18 14.55     8.73 8.40 6.82
Amide group
 13-Docosenamide,(Z)- 47.7 1.62 48.39   17.79 16.01   17.46 9.62  
Vitamin
  Vitamin E 52.7 1.74         
Others
 Benzenamine, 4-octyl-N-(4-octylphenyl)- 50.3     8.13 1.94 5.27    
  Heptasiloxane, hexadecamethyl- 38.2        4.12 11.3  
 Cyclononasiloxane, octadecamethyl- 45.02        5.77 8.94