ANOVA Results for the Pressurized N-Butane Extraction Yield of Pecan Nut Oil
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1 Table 1
2 ANOVA results for the pressurized n-butane extraction yield of pecan nut oil.
Parameter SS a Df b MS c F-value p-value Temperature 86.49000 1 86.49000 22.33601 0.017949 Pressure 19.36000 1 19.36000 4.99971 0.111374 Error 11.61667 3 Total 117.4666 5
7 3 a Sum of squares; b Degrees of freedom; c Mean square.
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1 6 Table 2
7 Fatty acids profile of pecan nut oil obtained by cold pressing, extraction with pressurized n-butane and commercial samples.
Fatty acid content (%) Assay Palmitic Stearic Oleic Linoleic Linolenic Arachidonic C16:0 C18:0 C18:1 C18:2 C18:3 C20:0 40 bar - 35 oC 6.2 ± 0.63 2.01 ± 0.10 64.94 ± 0.16 25.86 ± 0.86 0.98 ± 0.02 nd 40 bar - 55 oC 5.88 ± 0.17 2.08 ± 0.09 66.18 ± 0.04 24.84 ± 0.04 0.97 ± 0.04 nd 50 bar - 45 oC* 5.77 ± 0.11 2.09 ± 0.04 63.55 ± 0.03 25.51 ± 0.30 0.98 ± 0.02 nd 60 bar - 55 oC 6.62 ± 1.24 2.33 ± 0.39 64.65 ± 2.34 25.26 ± 0.52 1.10 ± 0.18 nd 60 bar - 35 oC 6.49 ± 0.69 2.48 ± 0.16 63.74 ± 1.16 26.17 ± 0.05 1.08 ± 0.27 nd Pressed nut 5.59 ± 0.20 2.12 ± 0.20 78.09 ± 0.16 13.63 ± 0.27 0.42 ± 0.08 0.11 ± 0.01 Commercial I 6.12 ± 0.07 1.95 ± 0.10 60.12 ± 0.08 30.28 ± 0.24 1.34 ± 0.01 0.07 ± 0.02 Commercial II 5.46 ± 0.06 1.92 ± 0.02 73.89 ± 0.12 18.06 ± 0.04 0.51 ± 0.00 0.12 ± 0.00 8 nd= not detected; * Mean of triplicate extractions runs.
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14 Figure 1
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3 17 List of Figure Captions
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20 Fig. 1. Kinetics of pecan nut oil extraction using n-butane at 35 °C and 40 bar.
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