Skip to main content

Advertisement

Table 1 Microalgae biomass characteristics

From: Highly efficient methane generation from untreated microalgae biomass

  Replete-N BM Low-N BM
Proteins (% DW) 61.0 ± 5.1 28.0 ± 3.1
Carbohydrates (% DW) 21.0 ± 3.8 52.9 ± 3.5
Lipids (% DW) 20.1 ± 0.8 21.4 ± 1.2
C (% DW) 50.3 ± 1.6 46.4 ± 1.7
N (% DW) 7.3 ± 0.7 2.9 ± 0.2
Volatile solids (% DW) 95.3 ± 1.0 95.6 ± 0.4
COD (g−g DW) 1.34 ± 0.11 1.31 ± 0.11
C/N ratio 6.9 ± 0.7 16.3 ± 1.1
Theoretical methane potential (mLN g−1 VS) ~551 ~549
  1. After harvesting for fermentation, important parameters of C. reinhardtii biomass were determined and presented as mean values. Error bars represent standard error (SE, n = 8)
  2. BM biomass, DW dry weight, N nitrogen, C carbon, VS volatile solids, TMP theoretical methane potential, COD chemical oxygen demand