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Table 2 Determination of chemical compounds of partially purified extract filtrate of chloroform and ethyl acetate from Ulva fasciata and Enteromorpha flexuosa using infrared (IR)

From: Biological control of soil borne cucumber diseases using green marine macroalgae

Macroalgae No. Chloroform Ethyl acetate
Wave number (cm−1) Functional group Wave number (cm−1) Functional group
Ulva fasciata 1 3422.06 N–H (Amine) 3428.81 N–H (Amine)
2 2960.2 C–H (Alkan) 2990.09 C–H (Alkan)
3 2920.66 C–H (Alkan) 1763.58 C=O (Carbonyl)
4 2852.2 C–H (Alkan) 1642.09 C–Br (Alkyl halide)
5 1708.62 C=O (Carbonyl) 1377.89 C–H (Alkan)
6 1647.88 C=C (Alkene) 1243.86 C–F (Alkyl halide)
7 1458.89 C=C (Aromatic) 1054.87 C–O (Ether)
8 1259.29 C–F (Alkyl halide) 799.35 C–Cl (Alkyl halide)
9 1026.91 C–O (Ether) 629.644 C=C (Alkene)
10 861.06 =C–H (Alkene) 442.583 (Alkyl halide)
11 779.35 C–Cl (Alkyl halide)   
12 700.034 C–Cl (Alkyl halide)
13 457.047 (Alkyl halide)
Enteromorpha flexuosa 1 3417.24 N–H (Amine) 3430.74 N–H (Amine)
2 2958.27 C–H (Alkan) 2990.09 C–H (Alkan)
3 2928.38 C–H (Alkan) 1763.58 C=O (Carbonyl)
4 2871.49 C–H (Alkan) 1633.41 C-Br (Alkyl halide)
5 1727.91 C=O (Carbonyl) 1378.85 C–H (Alkan)
6 1646.91 C=C (Alkene) 1243.86 C–F (Alkyl halide)
7 1462.74 C=C (Aromatic) 1053.91 C–O (Ether)
8 1385.6 N–O (Nitro) 799.35 C–Cl (Alkyl halide)
9 1260.25 C–F (Alkyl halide) 621.931 C=C (Alkene)
10 1152.26 C–F (Alkyl halide) 417.513 (Alkyl halide)
11 1027.87 C–O (Ether)   
12 862.989 =C–H (Alkene)
13 802.242 C–Br (Alkyl halide)
14 695.212 =C–H (Alkene)
15 452.225 (Alkyl halide)