Table 1

Yield and Physico-chemical characteristics of Moroccan A. microcarpus seed oil.

Characteristics Regions

E C M R MK
yield (℅) 19.79 ± 0.06ᵃ 18.93 ± 0.82ᵃ 19.27 ± 0.30ᵃ 19.13 ± 0.33ᵃ 21.03 ± 0.55ᵇ
Density g/cm³ (20 °C) 0.92 ± 0.80ᵃ 0.92 ± 0.35ᵃ 0.91 ± 0.32ᵃ 0.92 ± 0.35ᵃ 0.92 ± 0.17ᵃ
Refractive index 1.47 ± 0.08ᵃ 1.47 ± 0.32ᵃ 1.47 ± 0.04ᵃ 1.47 ± 0.12ᵃ 1.47 ± 0.04ᵃ
Acid value (mg KOH/g Oil) 1.86 ± 1.06ᵃ 2.12 ± 0.25ᵃ 2.23 ± 0.29ᵃ 2.76 ± 0.57ᵃᵇ 2.98 ± 0.51ᵇ
Saponification value (mg KOH/g Oil) 194.16 ± 0.40ᵃ 197.88 ± 0.08ᵃᵇ 201.41 ± 0.27ᵇ 215.09 ± 0.75ᶜ 191.49 ± 0.40ᵃ
Calculated ester value 192.30 ± 0.41ᵃ 195.76 ± 0.08ᵃᵇ 199.18 ± 0.27ᵇ 212.33 ± 0.76ᶜ 188.50 ± 0.41ᵃ
Iodine value (g d’I2/100 g) 91.03 ± 0.32ᵃ 107.53 ± 0.27ᶜ 107.53 ± 0.36ᶜ 97.54 ± 0.30ᵇ 98.64 ± 0.59ᵇ
peroxide value (meq O2/kg) 2.12 ± 1.25ᵃ 2.16 ± 0.71ᵃ 2.14 ± 0.54ᵃ 2.15 ± 0.54ᵃ 2.16 ± 0.71ᵃ
unsaponifiable matter (g/kg) 0.90 ± 1.15ᵃ 1.48 ± 1.01ᵃ 1.03 ± 1.12ᵃ 1.05 ± 1.08ᵃ 0.99 ± 1.16ᵃ

Values are expressed as mean ± standard deviation (n = 3). Statistical analysis was performed using ANOVA. Means followed by different letters within the same row are significantly different (p < 0.05). Sampling regions: El Jadida (E), Casablanca (C), Mohammedia (M), Rabat (R), and Meknes (MK).

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