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. 2022 Dec 24;15(1):89. doi: 10.3390/nu15010089

Table 3.

Phenolic estimations of faba bean hydrolysates (FBH) and emulsions (FBE) across in vitro digestion *.

Sample Types Samples Phases TPC
(mg GAE/g)
TFC
(mg QE/g)
TCT
(mg CE/g)
DPPH
(mg TE/g)
FRAP
(mg TE/g)
ABTS
(mg TE/g)
Hydrolysates (FBH) HA0 Oral
Gastric
Intestinal
0.53 ± 0.03 c
0.59 ± 0.03 b
1.21 ± 0.15 a
0.02 ± 0.00 a 0.41 ± 0.03 a 0.29 ± 0.02 b 0.43 ± 0.04 b 5.12 ± 0.64 b
- - 0.45 ± 0.06 a 0.32 ± 0.03 c 7.61 ± 0.31 b
- - 0.13 ± 0.01 c 0.77 ± 0.02 a 66.36 ± 3.82 a
HA5 Oral
Gastric
Intestinal
0.40 ± 0.01 b
0.63 ± 0.02 a
0.39 ± 0.04 b
- - 0.16 ± 0.02 b 0.41 ± 0.01 a 5.94 ± 0.21 c
- - 0.48 ± 0.08 a 0.10 ± 0.01 c 7.90 ± 0.12 b
- - 0.07 ± 0.01 c 0.24 ± 0.00 b 22.46 ± 0.39 a
HA10 Oral
Gastric
Intestinal
0.46 ± 0.04 c
0.61 ± 0.03 b
0.92 ± 0.14 a
- 1.16 ± 0.05 b 0.11 ± 0.00 b 0.53 ± 0.03 a 10.52 ± 0.07 b
- 1.29 ± 0.02 a 0.39 ± 0.05 a 0.10 ± 0.01 c 8.22 ± 0.68 c
- - - 0.50 ± 0.01 a 27.72 ± 0.30 a
HA30 Oral
Gastric
Intestinal
0.53 ± 0.03 c
0.79 ± 0.02 b
1.16 ± 0.11 a
- 0.54 ± 0.08 a 0.37 ± 0.01 b 1.10 ± 0.05 a 12.25 ± 0.09 b
- - 0.73 ± 0.06 a 0.45 ± 0.05 c 9.62 ± 0.15 b
- - - 0.58 ± 0.01 b 79.79 ± 0.95 a
Emulsions (FBE) EA0 Oral
Gastric
Intestinal
0.49 ± 0.03 c
0.69 ± 0.02 b
1.15 ± 0.13 a
0.04 ± 0.00 b 2.04 ± 0.02 a 0.28 ± 0.02 b 1.04 ± 0.04 b 12.79 ± 0.41 b
- - 0.42 ± 0.05 a 0.90 ± 0.00 c 9.10 ± 0.15 b
1.40 ± 0.23 a - 0.19 ± 0.01 c 1.35 ± 0.01 a 116.13 ± 8.91 a
EA5 Oral
Gastric
Intestinal
0.51 ± 0.02 c
0.80 ± 0.05 b
0.65 ± 0.09 a
- - 0.24 ± 0.02 a 0.99 ± 0.04 b 13.95 ± 0.43 b
- - 0.27 ± 0.03 a 0.96 ± 0.07 b 9.94 ± 0.53 c
0.80 ± 0.11 a - 0.07 ± 0.01 b 1.10 ± 0.02 a 22.06 ± 0.88 a
EA10 Oral
Gastric
Intestinal
0.50 ± 0.04 c
0.79 ± 0.01 b
1.17 ± 0.08 a
- 2.28 ± 0.02 a 0.29 ± 0.00 b 1.11 ± 0.02 b 14.80 ± 0.76 b
- - 0.40 ± 0.02 a 0.93 ± 0.04 c 9.47 ± 0.43 b
2.61 ± 0.10 a - 0.14 ± 0.01 c 2.06 ± 0.09 a 78.66 ± 6.38 a
EA30 Oral
Gastric
Intestinal
0.45 ± 0.04 c
0.86 ± 0.05 b
1.17 ± 0.07 a
- - 0.26 ± 0.02 b 1.00 ± 0.03 b 14.98 ± 0.86 b
- - 0.43 ± 0.06 a 1.01 ± 0.05 b 10.00 ± 0.27 b
0.99 ± 0.14 a - 0.15 ± 0.01 c 1.22 ± 0.05 a 67.46 ± 1.44 a

* Values (mean ± SD) illustrated in this table are in triplicates (n = 3). The data of all the samples have been subtracted the control values. For each sample of each assay, different superscript letters indicated the significant differences among oral, gastric and intestinal phases within three rows of a column at a 95% confidence level (p < 0.05). FBH, faba bean hydrolysates; FBE, faba bean emulsions; A₀, FBPC protein hydrolysates viz., slurry with adjusted pH and temperature treatment without Alcalase; A₅, slurry with 5 min hydrolysis with Alcalase; A₁₀, slurry with 10 min hydrolysis with Alcalase; A₁₅, slurry with 15 min hydrolysis with Alcalase; A₃₀, slurry with 30 min hydrolysis with Alcalase; TPC, Total phenolic content; TFC, total flavonoid content; TCT, total condensed tannin; GAE, gallic acid equivalents; QE, quercetin equivalents; CE, catechin equivalents. DPPH, 2,2′-diphenyl-1-picrylhydrazyl; FRAP, ferric reducing antioxidant power; ABTS, 2,2′-azinobis-3-ethylbenzo-thiazoline-6-sulfonic acid; TE, Trolox equivalent.