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. 2021 Jan 25;10(2):241. doi: 10.3390/foods10020241

Table 6.

Average protein solubility (mg/g) and total protein denaturation enthalpy (∆H, J/g) of chicken meat samples subjected or not to pulsed electric field treatments. Data are expressed as least square means ± standard deviation. a,b = means lacking a common letter significantly differ (p < 0.05). * = p < 0.05; ** = p < 0.01; n.s. = not significant.

. Parameters
Treatment (T) Electric Field Strength 1 Pulses no n Protein Solubility (mg/g) Protein Denaturation Enthalpy (ΔH, J/g)
Myofibrillar Sarcoplasmic Total
Control - - 5 180.3 ± 38.4 160.8 ab ± 7.62 341.1 ± 43.9 2.95 ± 0.35
T5 Low 450 5 150.5 ± 34.4 155.9 ab ± 8.94 306.4 ± 32.2 3.21 ± 0.29
T6 High 450 5 160.3 ± 46.7 150.1 b ± 10.3 310.4 ± 49.2 3.36 ± 0.74
T7 Low 600 5 143.1 ± 37.8 169.3 ab ± 15.2 312.4 ± 24.4 3.32 ± 0.25
T8 High 600 5 144.8 ± 24.3 175.9 a ± 20.4 304.7 ± 37.9 3.30 ± 0.16
p-Value n.s. * n.s. n.s.
Planned contrast 2
Control 5 180.3 ± 38.4 160.8 ± 7.62 341.1 ± 43.9 2.95 ± 0.35
Treated 20 149.7 ± 34.4 162.8 ± 16.9 312.5 ± 34.2 3.30 ± 0.41
p-Value n.s. n.s. n.s. n.s.
Low electric field strength 10 146.8 ± 34.3 162.6 ± 13.7 309.4 ± 27.1 3.26 ± 0.25
High electric field strength 10 152.5 ± 36.1 163.0 ± 20.4 315.5 ± 41.6 3.34 ± 0.53
p-Value n.s. n.s. n.s. n.s.
450 pulses 10 155.4 ± 34.4 153.0 ± 16.9 308.4 ± 34.2 3.30 ± 0.41
600 pulses 10 143.9 ± 39.0 172.6 ± 9.56 316.5 ± 39.3 3.31 ± 0.56
p-Value n.s ** n.s. n.s.

1 Low = 0.6 kV/cm; high = 1.2 kV/cm. 2 Control vs. treated (T5, T6, T7, T8); low electric field strength (T5, T7) vs. high electric field strength (T6, T8); 450 pulses (T5, T6) vs. 600 pulses (T7, T8).