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. 2020 May 31;25(11):2554. doi: 10.3390/molecules25112554

Table 1.

Physicochemical and bioactive compounds and antioxidant activity of oil from pomegranate seeds blanched for 3 min as a function of blanching temperature.

Blanching Temperature (°C) Oil Yield (%) YI K232 K270 RI TCC TPC DPPH
Unblanched 13.70 ± 0.10 c 83.86 ± 0.13 a 0.14 ± 0.01 c 0.13 ± 0.02 c 1.5215 ± 0.00 a 30.12 ± 1.07 a 3.41 ± 0.05 a 4.06 ± 0.11 c
80 15.80 ± 0.60 b 65.47 ± 0.30 c 0.41 ± 0.02b b 0.48 ± 0.02 b 1.5218 ± 0.00 a 28.74 ± 1.07 a 3.03 ± 0.17 c 4.32 ± 0.05 ab
90 18.55 ± 0.55 a 67.04 ± 0.06 b 0.32 ± 0.04 a 0.41 ± 0.01 a 1.5218 ± 0.00 a 26.79 ± 1.12 a 4.04 ± 0.08 d 4.41 ± 0.07 b
100 14.20 ± 0.20 bc 91.52 ± 0.16 d 0.16 ± 0.00 c 0.15 ± 0.02 c 1.5217 ± 0.00 a 27.74 ± 0.10 a 2.01 ± 0.07 b 4.13 ± 0.03 ac

Values are means ± SE of triplicate determinations. Means in the same column and followed by different letters are significantly different (p < 0.05) according to Duncan’s multiple range test. RI = Refractive index (25 °C), YI = Yellowness index, K232 = Conjugated dienes, K270 = Conjugated trienes, TCC = Total carotenoids content (mg β-carotene/100 g PSO), TPC = Total phenolic content (mg GAE/g PSO), DPPH = 2.2-Diphenyl-1-picryl hydrazyl (mmol Trolox/g PSO), GAE = Gallic acid equivalence, PSO = Pomegranate seed oil.