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Table 1 Ash content, total macro-and micronutrients, Cd, and Pb contents in raw materials (BSG, FPR, and LPR)

From: Extraction and characterization of bio-effectors from agro-food processing by-products as plant growth promoters

Raw materials Ash TotalN TotalP TotalCa TotalK TotalMg TotalNa TotalCu TotalFe TotalMn TotalNi TotalZn TotalCd TotalPb
  % g kg−1 g kg−1 g kg−1 g kg−1 g kg−1 g kg−1 mg kg−1 mg kg−1 mg kg−1 mg kg−1 mg kg−1 mg kg−1 mg kg−1
BSG 4.10 ± 0.1 47.9 ± 0.7 4.79 ± 0.4 4.41 ± 0.5 0.51 ± 0.0 1.63 ± 0.1 0.07 ± 0.0 14.3 ± 1.4 169 ± 13 37.3 ± 2.1 2.5 ± 0.3 97.5 ± 7.9 < 0.01 0.28 ± 0.06
FPR 20.4 ± 0.8 30.9 ± 1.0 4.80 ± 0.8 6.67 ± 0.7 33.4 ± 1.1 1.58 ± 0.1 7.00 ± 0.2 8.94 ± 1.5 137 ± 21 75.5 ± 6.7 5.1 ± 0.8 26.4 ± 2.1 < 0.01 0.38 ± 0.09
LPR 20.1 ± 0.5 14.5 ± 0.6 1.95 ± 0.3 10.3 ± 0.5 9.04 ± 0.8 1.02 ± 0.1 0.70 ± 0.0 5.52 ± 1.0 114 ± 15 5.54 ± 0.6 1.8 ± 0.1 12.8 ± 1.0 < 0.01 0.19 ± 0.04
  1. Values reported are average of three replicates ± standard deviation.
  2. BSG, brewers spent grain; FPR, fennel processing residues; LPR, lemon processing residues.