| Parameter . | n-Hexane . | NA . | Acetone . | Chloroform . | |||
|---|---|---|---|---|---|---|---|
| HE . | CE . | CE . | HE . | NA . | HE . | HE . | |
| Country | Senegal | Sudan | Nigeria | Nigeria | Nigeria | Senegal | Senegal |
| Oilyield (%) | 30.29 ± 0.52 | 33.83 | 20.45 ± 0.05 | NA | 13.4 ± 0.5 | 23.05 ± 0.61 | 40.12 ± 0.61 |
| pH | NA | NA | NA | NA | 6.12 ± 0.50 | NA | NA |
| Specific gravity | NA | 0.87 | NA | NA | 0.92 ± 0.00 | NA | NA |
| Density at 25 °C (g/cm3) | NA | 0.87 | NA | 0.88 | NA | NA | NA |
| Refractive index | 1.46 ± 3.10 | 1.43 | NA | NA | 1.49 ± 0.00 | 1.45 ± 3.10 | 1.45 ± 3.10 |
| Melting point (°C) | NA | 8 | NA | NA | NA | NA | NA |
| Colour | Reddish yellow | Light yellow | Yellow | NA | NA | NA | |
| L* | 96.16 ± 0.01 | NA | NA | NA | NA | 85.15 ± 0.13 | 89.30 ± 0.02 |
| a* | −12.22 ± 0.01 | NA | NA | NA | NA | −4.27 ± 0.10 | −6.96 ± 0.05 |
| b* | 87.08 ± 0.02 | NA | NA | NA | NA | 95.68 ± 0.04 | 92.78 ± 0.07 |
| Reference | Cissé et al. (2018) | Abeer et al. (2020) | Abubakar et al. (2015) | Dass et al. (2013) | Oyeleke (2012) | Cissé et al. (2018) | |
| Parameter . | n-Hexane . | NA . | Acetone . | Chloroform . | |||
|---|---|---|---|---|---|---|---|
| HE . | CE . | CE . | HE . | NA . | HE . | HE . | |
| Country | Senegal | Sudan | Nigeria | Nigeria | Nigeria | Senegal | Senegal |
| Oilyield (%) | 30.29 ± 0.52 | 33.83 | 20.45 ± 0.05 | NA | 13.4 ± 0.5 | 23.05 ± 0.61 | 40.12 ± 0.61 |
| pH | NA | NA | NA | NA | 6.12 ± 0.50 | NA | NA |
| Specific gravity | NA | 0.87 | NA | NA | 0.92 ± 0.00 | NA | NA |
| Density at 25 °C (g/cm3) | NA | 0.87 | NA | 0.88 | NA | NA | NA |
| Refractive index | 1.46 ± 3.10 | 1.43 | NA | NA | 1.49 ± 0.00 | 1.45 ± 3.10 | 1.45 ± 3.10 |
| Melting point (°C) | NA | 8 | NA | NA | NA | NA | NA |
| Colour | Reddish yellow | Light yellow | Yellow | NA | NA | NA | |
| L* | 96.16 ± 0.01 | NA | NA | NA | NA | 85.15 ± 0.13 | 89.30 ± 0.02 |
| a* | −12.22 ± 0.01 | NA | NA | NA | NA | −4.27 ± 0.10 | −6.96 ± 0.05 |
| b* | 87.08 ± 0.02 | NA | NA | NA | NA | 95.68 ± 0.04 | 92.78 ± 0.07 |
| Reference | Cissé et al. (2018) | Abeer et al. (2020) | Abubakar et al. (2015) | Dass et al. (2013) | Oyeleke (2012) | Cissé et al. (2018) | |
Note. CE = cold extraction; HE = hot extraction; NA = not available.
| Parameter . | n-Hexane . | NA . | Acetone . | Chloroform . | |||
|---|---|---|---|---|---|---|---|
| HE . | CE . | CE . | HE . | NA . | HE . | HE . | |
| Country | Senegal | Sudan | Nigeria | Nigeria | Nigeria | Senegal | Senegal |
| Oilyield (%) | 30.29 ± 0.52 | 33.83 | 20.45 ± 0.05 | NA | 13.4 ± 0.5 | 23.05 ± 0.61 | 40.12 ± 0.61 |
| pH | NA | NA | NA | NA | 6.12 ± 0.50 | NA | NA |
| Specific gravity | NA | 0.87 | NA | NA | 0.92 ± 0.00 | NA | NA |
| Density at 25 °C (g/cm3) | NA | 0.87 | NA | 0.88 | NA | NA | NA |
| Refractive index | 1.46 ± 3.10 | 1.43 | NA | NA | 1.49 ± 0.00 | 1.45 ± 3.10 | 1.45 ± 3.10 |
| Melting point (°C) | NA | 8 | NA | NA | NA | NA | NA |
| Colour | Reddish yellow | Light yellow | Yellow | NA | NA | NA | |
| L* | 96.16 ± 0.01 | NA | NA | NA | NA | 85.15 ± 0.13 | 89.30 ± 0.02 |
| a* | −12.22 ± 0.01 | NA | NA | NA | NA | −4.27 ± 0.10 | −6.96 ± 0.05 |
| b* | 87.08 ± 0.02 | NA | NA | NA | NA | 95.68 ± 0.04 | 92.78 ± 0.07 |
| Reference | Cissé et al. (2018) | Abeer et al. (2020) | Abubakar et al. (2015) | Dass et al. (2013) | Oyeleke (2012) | Cissé et al. (2018) | |
| Parameter . | n-Hexane . | NA . | Acetone . | Chloroform . | |||
|---|---|---|---|---|---|---|---|
| HE . | CE . | CE . | HE . | NA . | HE . | HE . | |
| Country | Senegal | Sudan | Nigeria | Nigeria | Nigeria | Senegal | Senegal |
| Oilyield (%) | 30.29 ± 0.52 | 33.83 | 20.45 ± 0.05 | NA | 13.4 ± 0.5 | 23.05 ± 0.61 | 40.12 ± 0.61 |
| pH | NA | NA | NA | NA | 6.12 ± 0.50 | NA | NA |
| Specific gravity | NA | 0.87 | NA | NA | 0.92 ± 0.00 | NA | NA |
| Density at 25 °C (g/cm3) | NA | 0.87 | NA | 0.88 | NA | NA | NA |
| Refractive index | 1.46 ± 3.10 | 1.43 | NA | NA | 1.49 ± 0.00 | 1.45 ± 3.10 | 1.45 ± 3.10 |
| Melting point (°C) | NA | 8 | NA | NA | NA | NA | NA |
| Colour | Reddish yellow | Light yellow | Yellow | NA | NA | NA | |
| L* | 96.16 ± 0.01 | NA | NA | NA | NA | 85.15 ± 0.13 | 89.30 ± 0.02 |
| a* | −12.22 ± 0.01 | NA | NA | NA | NA | −4.27 ± 0.10 | −6.96 ± 0.05 |
| b* | 87.08 ± 0.02 | NA | NA | NA | NA | 95.68 ± 0.04 | 92.78 ± 0.07 |
| Reference | Cissé et al. (2018) | Abeer et al. (2020) | Abubakar et al. (2015) | Dass et al. (2013) | Oyeleke (2012) | Cissé et al. (2018) | |
Note. CE = cold extraction; HE = hot extraction; NA = not available.
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