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Table 2 Flow properties and stability of biodiesel from palm and Jatropha oil

From: Lipase-catalyzed biodiesel production and quality with Jatropha curcas oil: exploring its potential for Central America

Catalyst Oil FFA Viscosity Cloud point OSI Cetane number
mg KOH/g ± S.D. (mm2/s) ± S.D. (°C) ± S.D. h ± S.D. CN ± S.D.
NaOH Jatropha 0.1 ± 0.1d 2.7 ± 0.04d 3.8 ± 0.18b 4.1 ± 0.1b 54.8 ± 0.3b
Palm 0.1 ± 0.1d 4.7 ± 0.07b 14.3 ± 1.0a 10.5 ± 0.1a 63.3 ± 0.5a
TL Jatropha 14.7 ± 0.4b 3.0 ± 0.04c 4.3 ± 0.29b 0.5 ± 0.4d 54.8 ± 0.1b
Palm 10.8 ± 0.4c 5.1 ± 0.07a 14.8 ± 1.0a 3.9 ± 0.1c 65.6 ± 1.3a
CA Jatropha 16.1 ± 1.2a 3.0 ± 0.04c 4.1 ± 0.30b 0.4 ± 0.5d 56.0 ± 0.4b
Palm 13.9 ± 0.2b 4.9 ± 0.07ab 14.7 ± 1.0a 4.7 ± 0.1b 65.6 ± 0.1a
ASTM D6751 0.5 Maximum 1.9–6 Report 3 Minimum 47 Minimum
C.V. (%) 5.5 1.4 6.9 7.8 4.5
  1. Data are from biodiesel quality parameters of transesterified oils (Jatropha and palm) with alkaline (NaOH) and enzymatic (TL and CA) catalysts compared to ASTM D6751 limits. Means with different superscript letters (a, b, c, d) on the same column are significantly different (LSD test, P < 0.05). % C.V. percent coefficient of variation