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. 2021 Feb 11;10(2):396. doi: 10.3390/foods10020396

Table 2.

Weight average molecular mass MM of EPS after thermal and acid stress of 1.0 g/L solutions in different treatment order. Ref: reference; b.d.l.: below detection level. Mean values with different superscripts in a column indicate statistical differences (α = 0.05).

Treatment Order MM [×106 Da]
Acid Treatment 1 Neutralization 2 Heating 3 DGCC7710 fEPS ST143
fEPS
Dextran
Ref - - - 2.98 ± 0.09 a 3.94 ± 0.12 a 0.22 ± 0.01 a
I 1 - - 0.36 ± 0.02 c 3.53 ± 0.13 a 0.23 ± 0.01 a,b
II 1 2 - 2.54 ± 0.15 b 3.62 ± 0.02 a 0.21 ± 0.01 a,b
III 1 - 2 b.d.l. b.d.l. 0.04 ± 0.01 c
IV 1 3 2 b.d.l. b.d.l. 0.04 ± 0.01 c
V 1 2 3 2.49 ± 0.06 b 3.70 ± 0.37 a 0.22 ± 0.01 a,b
VI 2 - 1 0.45 ± 0.01 c 3.79 ± 0.18 a 0.22 ± 0.01 b
VII 2 3 1 2.22 ± 0.01 b 3.41 ± 0.15 a 0.23 ± 0.01 a,b

1 98 g/L trichloroacetic acid (TCA), incubation time: 4 h; 2 1 mol/L NaOH; 3 90 °C, 10 min and subsequent cooling to room temperature in an ice bath.