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Table 3 Biodiesel properties of the transesterified SCOs of oleaginous fungi from mangrove wetlands

From: Single cell oil of oleaginous fungi from the tropical mangrove wetlands as a potential feedstock for biodiesel

Property Isolates US biodiesel standard ASTM D6751 EU biodiesel standard EN 14214 Indian biodiesel standard IS 15607
IBB B2 IBB F14 IBB G4 IBB G5 IBB M1
Density * (g.cm-3) 0.825 a 0.870 b 0.860 b 0.810 a 0.875 b NS 0.86 – 0.90 0.86 – 0.90
(0.857) (0.865) (0.865) (0.855) (0.865)
Kinematic viscosity# (40 °C; mm2s-1) 4.52 4.69 4.55 4.55 4.68 1.9 – 6.0 3.5 – 5.0 3.5 – 5.0
SN * 195 a 217 b 201 a 190 a 200 a NS NS NS
(193.2) (193.2) (195.3) (193.0) (192.1)
IV * 91.5 a 60.28 b 73.0 c 76.30 c 54.81 b NS 120max NS
(74.9) (53.4) (52.5) (69.7) (67)
HHV (MJ kg -1)** 40.06 39.63 40.09 40.49 40.40 NS NS NS
(40.38) (40.7) (40.6) (40.47) (40.55)
CN # 56.22 61.24 61.2 57.815 58.42 47-65 51 min 51 min
TAN (mg KOH/g) * ND ND 0.2 a 0.1 b 0.1 b 0.8 max 0.5 max 0.5 max
FFA (%)* ND ND 0.1 a 0.05 a 0.05 a NS NS NS
Concentration of linolenic acid (C18:3) (%) * 0.5 a ND 0.1 b 0.6 a 0.4 ab NS 12 max NS
FAME having ≥4 double bonds (%)* ND ND ND ND ND NS 1 max NS
  1. The experimental values are means of three independent determinations. a,b,c Mean values within a row with different superscript letters differ significantly and were determined as mentioned in Methods (ANOVA, Tukey, p < 0.05). Separate analysis was done for each row.
  2. ND not detected; NS not specified.
  3. * Experimentally determined values followed by predicted ones, if any, in brackets.
  4. # Predicted values as mentioned in Methods.
  5. ** Calculated using experimental SN and IV while the values in brackets determined from predicted ones.