[Retracted] Evaluation of the Stability of the Total Antioxidant Capacity, Polyphenol Contents, and Starch Hydrolase Inhibitory Activities of Kombucha Teas Using an In Vitro Model of Digestion
Table 3
Changes in the polyphenol contents in the three Kombucha cultures throughout the 7-day period of analysis expressed as mean ± SEM. versus the value of each tea at day 0. versus the value of each tea at day 7.
Kombucha
Polyphenol
Days/phase of digestion
0 (μg/mL)
1 (μg/mL)
7 (μg/mL)
Pancreatic (μg/mL)
Duodenal (μg/mL)
1
EGCG
26.5 ± 1.3
27.5 ± 1.1
36.9 ± 1.5
37.5 ± 1.6
41.5 ± 2.1
EGC
27.8 ± 1.2
27.9 ± 1.1
31.2 ± 1.1
32.5 ± 1.3
34.1 ± 1.1
ECG
10.8 ± 1.1
11.2 ± 1.2
13.6 ± 1.5
13.9 ± 1.6
14.8 ± 1.2
EC
9.8 ± 1.4
10.5 ± 1.2
12.9 ± 1.3
13.9 ± 1.1
14.8 ± 1.0
TF
12.6 ± 1.2
13.9 ± 1.1
15.8 ± 1.0
16.7 ± 1.1
17.9 ± 2.5
GA
31.5 ± 1.9
36.8 ± 1.1
39.7 ± 1.5
40.1 ± 1.9
46.7 ± 1.7
2
EGCG
26.5 ± 1.3
28.4 ± 1.2
35.9 ± 1.6
36.8 ± 1.4
40.2 ± 1.9
EGC
27.8 ± 1.2
28.7 ± 1.2
33.2 ± 1.2
34.5 ± 1.6
36.2 ± 1.4
ECG
10.8 ± 1.1
12.5 ± 1.1
14.9 ± 1.3
14.9 ± 1.2
15.9 ± 1.1
EC
9.8 ± 1.4
14.8 ± 1.4
15.4 ± 1.2
15.9 ± 1.2
16.8 ± 1.0
TF
12.6 ± 1.2
14.8 ± 1.0
16.9 ± 1.3
17.1 ± 1.3
18.5 ± 2.0
GA
31.5 ± 1.9
37.2 ± 1.2
41.6 ± 1.6
42.9 ± 1.7
47.6 ± 1.2
3
EGCG
26.5 ± 1.3
27.6 ± 1.5
36.1 ± 1.5
37.9 ± 1.6
41.1 ± 1.1
EGC
27.8 ± 1.2
28.1 ± 1.5
34.9 ± 1.2
35.9 ± 1.3
42.9 ± 1.2
ECG
10.8 ± 1.1
13.9 ± 1.0
15.2 ± 1.1
15.4 ± 1.0
17.4 ± 1.1
EC
9.8 ± 1.4
15.1 ± 1.2
15.9 ± 1.3
16.1 ± 1.0
16.7 ± 1.1
TF
12.6 ± 1.2
15.1 ± 1.1
17.9 ± 1.2
18.0 ± 1.2
18.9 ± 1.1
GA
31.5 ± 1.9
38.5 ± 1.5
42.1 ± 1.6
43.6 ± 1.2
48.3 ± 1.2
The denoted abbreviations are as follows: (−)-epicatechin (EC), (−)-epicatechin-3-gallate (ECG), (−)-epigallocatechin (EGC), and (−)-epigallocatechin-3-gallate (EGCG), theaflavin (TF), and gallic acid (GA).
