Table 4.
Profile (g/kg) in free fatty acids, hydrocarbons, fatty alcohols, sterols, fatty aldehydes and terpenes of different sugarcane bagasse extracts.
| BAGASSE | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EtOH | AcO | EtAc | DCM | |||||||||
| Dodecanoic acid (FFA 12:0) | n.d c | n.a | 0.16 b ± 0.02 | 0.37 a ± 0.08 | n.d c | n.a | ||||||
| Myristic acid (FFA 14:0) | n.d b | n.a | 0.40 a ± 0.02 | n.d b | n.a | n.d b | n.a | |||||
| Palmitic Acid (FFA 16:0) | 2.86 c ± 0.62 | 6.52 a ± 0.86 | 6.92 a ± 0.62 | 4.33 b ± 0.58 | ||||||||
| Stearic acid (FFA 18:0) | 1.03 b ± 0.16 | 3.68 a ± 0.62 | 2.70 a ± 0.23 | 1.77 b ± 0.17 | ||||||||
| Oleic Acid (FFA 18:1 c9) | 1.57 c ± 0.47 | 4.50 a ± 0.06 | 4.37 a ± 0.17 | 2.49 b ± 0.28 | ||||||||
| Linoleic acid (FFA 18:2 c9c12) | 0.87 b ± 0.32 | 2.49 a ± 0.35 | 2.47 a ± 0.09 | 1.13 b ± 0.25 | ||||||||
| Arachidic acid (FFA 20:0) | 0.44 c ± 0.08 | 1.27 a ± 0.16 | 1.28 a ± 0.17 | 0.92 b ± 0.19 | ||||||||
| Behenic acid (FFA 22:0) | n.d c | n.a | 0.88 a ± 0.13 | 0.96 a ± 0.14 | 0.48 b ± 0.11 | |||||||
| Lignoceric acid (FFA 24:0) | 0.38 c ± 0.03 | 1.66 a ± 0.18 | 1.76 a ± 0.36 | 1.43 a ± 0.24 | ||||||||
| Octacosanoic acid (FFA 28:0) | 2.84 c ± 0.90 | 13.82 a ± 1.23 | 11.09 b ± 2.61 | 13.81 ab ± 1.50 | ||||||||
| Σ FFA | 9.98 c ± 1.68 | 35.38 a ± 2.94 | 31.92 ab ± 3.14 | 26.36 b ± 3.22 | ||||||||
| 1-Octacosanol (FOH 28:0) | 5.89 c ± 1.16 | 19.64 a ± 1.92 | 11.21 b ± 2.81 | 21.64 a ± 2.07 | ||||||||
| 1-Triacontanol (FOH 30:0) | 1.29 d ± 0.21 | 3.67 b ± 0.59 | 2.21 c ± 0.51 | 4.31 a ± 0.22 | ||||||||
| 1-Dotriacontanol (FOH 32:0) | 0.68 d ± 0.15 | 2.01 b ± 0.44 | 1.16 c ± 0.27 | 3.21 a ± 0.21 | ||||||||
| Σ FOH | 7.85 c ± 1.54 | 25.32 a ± 2.74 | 14.59 b ± 3.33 | 29.16 a ± 2.40 | ||||||||
| Heptacosane (C27:0) | 0.36 c ± 0.10 | 1.67 a ± 0.17 | 0.99 b ± 0.21 | 2.15 a ± 0.36 | ||||||||
| Octacosane (C28:0) | n.d b | n.a | n.d b | n.a | 0.41 a ± 0.07 | 0.20 a ± 0.04 | ||||||
| Nonacosane (C29:0) | n.d d | n.a | 0.53 b ± 0.13 | 0.35 c ± 0.09 | 2.87 a ± 2.22 | |||||||
| Hentriacontane (C31:0) | n.d b | n.a | 0.46 a ± 0.03 | n.d b | n.a | n.d b | n.a | |||||
| Σ HYDROCARBONS | 0.36 d ± 0.10 | 2.66 b ± 0.08 | 1.75 c ± 0.30 | 5.23 a ± 0.44 | ||||||||
| Campesterol (ST 28:1;O) | 0.65 c ± 0.08 | 1.87 a ± 0.16 | 1.78 a ± 0.15 | 1.33 b ± 0.19 | ||||||||
| Stigmasterol (ST 29:2;O) | 1.48 c ± 0.36 | 5.77 b ± 0.75 | 4.55 b ± 0.88 | 7.06 a ± 0.75 | ||||||||
| β-Sitosterol (ST 29:1;O) | 1.83 c ± 0.29 | 5.82 a ± 0.70 | 5.87 a ± 0.55 | 4.31 b ± 0.37 | ||||||||
| 4,22-Stigmastadiene-3-one (ST 29:2;O) | 0.86 b ± 0.15 | 3.34 a ± 0.35 | 3.11 a ± 0.43 | 3.94 a ± 0.58 | ||||||||
| Stigmast-4-en-3-one (ST 29:2;O2) | 2.68 c ± 0.48 | 9.53 b ± 0.98 | 9.27 b ± 1.18 | 11.59 a ± 1.72 | ||||||||
| Σ ST | 7.50 c ± 1.04 | 26.33 ab ± 2.69 | 24.59 b ± 3.10 | 28.22 a ± 1.17 | ||||||||
| 4-Coumaric acid | 36.11 a ± 2.13 | 11.29 b ± 0.30 | 7.93 c ± 0.71 | n.d d | n.a | |||||||
| Octacosanal (FAL 28:0) | 2.27 d ± 0.84 | 7.91 b ± 0.08 | 4.40 c ± 1.27 | 13.79 a ± 1.65 | ||||||||
Results expressed as mean ± SD (n = 3). EtOH: ethanol; AcO: acetone; EtAc: ethyl acetate; DCM: dichloromethane. FFAs: free fatty acids; FOHs: fatty alcohols; STs: sterols; FALs: fatty aldehydes; n.d: not detected; n.a: not applied. Different superscript letters in a row indicate statistically significant differences between solvents (p < 0.05).