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Table 3 Buffering capacity (mEq × 10–3) of some plant species in 2019 and 2020

From: A study on the nutritional characteristics of some plants and their effects on ruminal microbial fermentation and protozoa population

Plant species pH Titratable acidity Acid-buffering capacity Titratable alkalinity Base-buffering capacity Acid–base buffering capacity
2019 2020 2019 2020 2019 2020 2019 2020 2019 2020 2019 2020
Dracocephalum moldavica L 5.22f 5.15e 315b 299b 189a 199a 176c 164c 46.7c 42.6c 235a 242a
Melissa officinalis L 5.72b 5.76a 277d 257c 120e 117c 98.2f 107e 30.0ef 33.0d 150e 150d
Ruta graveolens L 4.85g 4.88f 172f 178d 142c 169.8b 224a 205a 54.0b 49.9b 196c 220b
Perovskia abrotanoides Kar 5.37e 5.43c 134g 148e 59.3h 65d 95.2f 104e 26.2g 29.3e 85.5g 94.5e
Cichorium intybus L 5.42d 5.41c 140g 128f 70.4g 64.4d 115e 106e 32.1e 29.6e 102f 94.0e
Borago officinalis L 5.79a 5.74a 344a 285b 130d 108c 126d 140d 39.3d 42.9c 169d 151d
Peganum harmala L 5.59c 5.63b 300c 327a 150b 164b 183b 164c 53.6b 48.7b 204b 212b
Teucrium polium L 5.23f 5.32d 133g 132ef 73.7g 73.0d 109e 114e 29.1f 31.1de 103f 104e
Medicago sativa 5.82a 5.75a 195e 196d 107f 112c 187b 179b 58.8a 55.7a 166d 168c
SEM 0.051 0.048 13.6 12.4 6.82 7.90 7.51 6.01 1.99 1.61 8.23 8.99
p-value  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001  < 0.0001
  1. Means with different letters among the same row indicate significant differences according to the p-value presented
  2. SEM standard error of the mean