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Table 3 Characterization of raw materials

From: Biodiesel production from alternative raw materials using a heterogeneous low ordered biosilicified enzyme as biocatalyst

Feedstock Density (g/cm3) Kinematic viscosity (mm2/s) a Acid value (mgKOH/goil) FFA content (wt%) b Water content (ppm) Triglyceride content (wt%)
Soybean oil 0.93 18.38 0.13 0.07 626 97.70
Waste Frying oil 0.94 20.48 0.21 0.11 671 95.73
Jatropha excisa oil 0.92 15.75 1.55 0.78 980 94.60
Acid oil from soybean soapstock 0.96 10.94 153.72 76.91 5221 9.18
Pork Fat 0.90 21.85 0.67 0.33 590 97.64
  1. a At 60 °C (reaction temperature)
  2. b Calculated from the acid value (EN 14104: 2003) and expressed as oleic acid [62]