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Table 2 Polyphenols release rates from APP and APCM in simulated gastrointestinal digestion model

From: Anti-inflammatory effect of unripe apple polyphenols-chitooligosaccharides microcapsule against LPS-induced RAW 264.7 cells

Polyphenols

Polyphenols content (release rate, %)

20 min

40 min

60 min

APP

APCM

APP

APCM

APP

APCM

TPC (mg GAE/g)

285.05 ± 2.21 (57.23)*

196.01 ± 1.71 (55.17)

398.01 ± 1.71 (79.91)*

260.05 ± 1.95 (73.31)

498.07 ± 2.13 (99.87)

349.76 ± 1.27 (98.45)

Chlorogenic acid (mg/g)

4.24 ± 0.21 (58.21)*

2.89 ± 0.14 (56.43)

5.84 ± 0.29 (80.05)*

3.80 ± 0.42 (74.12)

7.28 ± 0.27 (99.81)

5.04 ± 0.12 (98.42)

Caffeic acid (mg/g)

21.02 ± 0.83 (58.13)*

14.27 ± 0.53 (56.34)

28.77 ± 0.43 (79.57)*

18.81 ± 0.55 (74.26)

36.01 ± 0.53 (99.57)

24.88 ± 0.43 (98.24)

p-Coumaric acid (mg/g)

5.81 ± 0.84 (56.87)

4.08 ± 0.62 (55.46)

8.05 ± 0.34 (78.75)*

5.43 ± 0.48 (73.74)

10.15 ± 0.45 (99.28)*

7.20 ± 0.48 (97.89)

Quercetin-3-glucoside (mg/g)

7.66 ± 0.63 (57.57)*

5.21 ± 0.43 (54.39)

10.56 ± 0.36 (79.34)*

6.97 ± 0.42 (72.79)

13.24 ± 0.47 (99.49)

9.41 ± 0.37 (98.21)

Phloridzin (mg/g)

5.02 ± 0.42 (57.42)*

3.47 ± 0.32 (54.44)

6.84 ± 0.31 (78.34)*

4.70 ± 0.28 (73.74)

8.71 ± 0.34 (99.81)*

6.24 ± 0.33 (97.94)

Phloretin (mg/g)

1.80 ± 0.21 (56.88)

1.29 ± 0.21 (55.83)

2.52 ± 0.26 (79.76)*

1.68 ± 0.31 (72.71)

3.14 ± 0.36 (99.29)

2.28 ± 0.37 (98.78)

  1. * APCM group compared with APP group (p < 0.05)