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Table 3 Biochemical compositions of leafy vegetable residues (based on TS)

From: Study on biomethane production and biodegradability of different leafy vegetables in anaerobic digestion

Samples Proteins (%) VFAs (%) Lipids (%) Structural carbohydrates Non-structural carbohydrates (%) Ash (%)
Hemicellulose (%) Cellulose (%) Lignin (%)
V1 1.04 ± 0.01 0.35 ± 0.00 2.11 ± 0.03 68.24 ± 1.86 13.52 ± 0.61 0.44 ± 0.00 0.29 ± 0.00 9.75 ± 0.02
V2 1.13 ± 0.00 1.04 ± 0.00 1.26 ± 0.01 60.22 ± 4.00 16.46 ± 1.63 0.22 ± 0.13 6.53 ± 0.05 17.70 ± 0.53
V3 0.42 ± 0.00 0.23 ± 0.01 5.51 ± 0.03 33.38 ± 0.18 16.62 ± 0.10 10.34 ± 0.11 2.42 ± 0.01 13.21 ± 0.12
V4 0.55 ± 0.00 0.78 ± 0.01 4.33 ± 0.01 62.28 ± 0.56 12.87 ± 0.93 3.86 ± 0.61 2.02 ± 0.00 5.24 ± 0.01
V5 0.56 ± 0.00 0.88 ± 0.02 5.07 ± 0.05 38.14 ± 3.47 17.27 ± 1.13 10.30 ± 0.55 0.03 ± 0.00 9.77 ± 0.04
V6 0.78 ± 0.01 0.76 ± 0.00 2.64 ± 0.02 50.97 ± 0.37 12.08 ± 0.05 5.76 ± 0.73 0.01 ± 0.00 30.78 ± 0.30
V7 0.15 ± 0.00 3.01 ± 0.03 3.52 ± 0.01 14.37 ± 2.06 19.53 ± 1.02 12.12 ± 1.56 0.02 ± 0.00 24.63 ± 0.45
V8 0.88 ± 0.01 0.80 ± 0.00 5.35 ± 0.05 31.95 ± 3.18 14.55 ± 0.34 5.96 ± 0.50 0.35 ± 0.00 26.88 ± 0.27
V9 0.71 ± 0.00 0.34 ± 0.01 2.98 ± 0.01 54.89 ± 3.53 14.43 ± 0.77 3.90 ± 0.69 0.31 ± 0.01 9.52 ± 0.05
V10 0.57 ± 0.00 0.30 ± 0.00 3.53 ± 0.03 61.54 ± 3.21 11.04 ± 5.81 5.26 ± 0.25 1.62 ± 0.02 8.76 ± 0.10
V11 1.35 ± 0.01 1.90 ± 0.02 4.79 ± 0.03 56.36 ± 0.50 14.08 ± 1.30 4.88 ± 1.33 0.16 ± 0.00 12.47 ± 0.08
V12 0.23 ± 0.00 0.59 ± 0.00 3.37 ± 0.03 24.85 ± 0.28 7.87 ± 0.89 9.43 ± 1.35 0.03 ± 0.00 27.19 ± 0.08
V13 0.12 ± 0.00 0.76 ± 0.00 2.14 ± 0.01 29.71 ± 5.15 18.95 ± 0.46 8.53 ± 1.40 0.02 ± 0.00 24.51 ± 0.38
V14 0.80 ± 0.00 1.01 ± 0.04 2.05 ± 0.01 47.51 ± 4.32 6.61 ± 1.18 3.87 ± 1.26 1.55 ± 0.02 9.83 ± 0.13
V15 0.53 ± 0.00 0.73 ± 0.00 1.51 ± 0.03 37.84 ± 2.43 19.22 ± 0.78 3.32 ± 1.57 0.07 ± 0.00 26.18 ± 0.29
V16 1.21 ± 0.00 0.69 ± 0.01 4.02 ± 0.05 35.45 ± 2.91 20.67 ± 1.12 6.16 ± 0.48 0.84 ± 0.01 11.83 ± 0.22
V17 1.28 ± 0.00 1.09 ± 0.00 1.02 ± 0.01 37.98 ± 2.82 10.50 ± 0.73 11.13 ± 1.69 0.02 ± 0.00 27.38 ± 0.34
V18 0.42 ± 0.00 0.48 ± 0.01 1.66 ± 0.05 41.05 ± 0.95 14.61 ± 1.61 10.42 ± 1.77 0.02 ± 0.00 19.11 ± 0.05
V19 0.80 ± 0.01 1.54 ± 0.00 2.71 ± 0.03 54.90 ± 4.60 13.61 ± 0.68 4.81 ± 0.70 0.36 ± 0.00 16.32 ± 0.02
V20 0.30 ± 0.00 1.10 ± 0.00 3.42 ± 0.05 36.91 ± 2.97 15.64 ± 0.38 4.41 ± 0.55 0.93 ± 0.00 23.17 ± 0.69