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Table 1 Effects of simulated digestion on monomeric phenolic in different varieties of lychee pericarp by HPLC–DAD

From: Effects of simulated digestion on the phenolic composition and antioxidant activity of different cultivars of lychee pericarp

Mono phenolic (mg/g DW) Jizui Lizhiwang Guiwei Yuhe Nuomici Guihong
Caffeic acid
DW 0.10 ± 0.01a 0.99 ± 0.04c 0.24 ± 0.03a 0.16 ± 0.07a 0.21 ± 0.05a 0.54 ± 0.17b
SGF 0.07 ± 0.00a,* 0.79 ± 0.03e,* 0.25 ± 0.06b 0.28 ± 0.01b,* 0.50 ± 0.12c,* 0.69 ± 0.02d
SIF NDa,* NDa,* ND* NDa,* NDa,* NDa,*
Ferulic acid
DW 0.35 ± 0.02a 3.39 ± 0.18e 0.83 ± 0.05b 1.07 ± 0.33b 1.42 ± 0.20c 1.74 ± 0.03d
SGF 0.25 ± 0.05b,* 0.09 ± 0.06a,* 0.38 ± 0.04c,* 0.40 ± 0.08ac,* 1.32 ± 0.07d NDa,*
SIF 0.17 ± 0.07a,* 0.87 ± 0.21d,* 0.34 ± 0.06b,* 0.06 ± 0.01a,* 0.54 ± 0.05c,* 0.59 ± 0.01c,*
Procyanidin B2
DW 1.14 ± 0.19a 9.42 ± 0.41e 3.09 ± 0.28c 2.49 ± 0.11b 2.04 ± 0.49b 5.56 ± 0.35d
SGF 0.73 ± 0.10a,* 7.05 ± 0.28e,* 2.63 ± 0.31c 2.14 ± 0.17b,* 2.77 ± 0.02c,* 6.19 ± 0.11d,*
SIF 0.70 ± 0.03a,* 1.47 ± 0.29c,* 0.49 ± 0.02a,* 0.48 ± 0.04a,* 0.40 ± 0.04a,* 1.14 ± 0.08b,*
Epicatechin
DW 0.16 ± 0.07a 4.48 ± 0.59d 2.25 ± 0.04b 1.81 ± 0.11b 3.23 ± 0.31c 4.50 ± 0.36d
SGF 0.87 ± 0.13a,* 3.60 ± 0.34c 1.39 ± 0.28a,* 1.39 ± 0.22a,* 2.97 ± 0.49b 3.85 ± 0.15c,*
SIF 0.39 ± 0.05a,* 2.19 ± 0.83c,* 0.21 ± 0.00a,* 0.06 ± 0.02a,* 1.19 ± 0.36b,* 1.98 ± 0.07c,*
A-type procyanidin trimer
DW 1.10 ± 0.11d 0.81 ± 0.07c 0.07 ± 0.01a 0.03 ± 0.00a 0.38 ± 0.01b 0.38 ± 0.16b
SGF NDa,* 1.15 ± 0.23b 0.16 ± 0.08a,* 0.02 ± 0.00a,* 0.05 ± 0.05a,* 0.17 ± 0.08a,*
SIF 0.15 ± 0.01a,* 2.09 ± 0.40b,* NDa NDa,* NDa,* NDa,*
Procyanidin A2
DW 1.50 ± 0.09a 3.76 ± 0.08d 1.36 ± 0.21a 1.97 ± 0.08b 1.32 ± 0.13a 2.58 ± 0.18c
SGF 1.01 ± 0.10a,* 2.89 ± 0.80cv 1.39 ± 0.02a* 1.92 ± 0.21ab 1.22 ± 0.18a 2.52 ± 0.54bc
SIF 0.94 ± 0.04a* 2.22 ± 0.34b* 0.87 ± 0.07a 0.83 ± 0.00a* 1.66 ± 0.28a 1.91 ± 0.13a
Quercetin-3-rutinose-7-rhamnoside
DW 0.26 ± 0.02a 2.00 ± 0.06c 0.64 ± 0.10b 0.81 ± 0.09b 0.40 ± 0.18a 0.81 ± 0.14b
SGF 0.29 ± 0.04a 2.72 ± 0.14e* 0.54 ± 0.05b 0.82 ± 0.14c 0.70 ± 0.03bc* 1.36 ± 0.09d
SIF 1.06 ± 0.00b* 0.46 ± 0.13a* 0.36 ± 0.08a* 0.49 ± 0.03a* 0.77 ± 0.01b* 1.09 ± 0.02b
Isoquercitrin
DW 0.32 ± 0.06a 1.42 ± 0.09d 0.35 ± 0.04a 0.50 ± 0.04b 0.41 ± 0.06ab 0.71 ± 0.05c
SGF 0.34 ± 0.04a 1.30 ± 0.16d 0.30 ± 0.06a 0.57 ± 0.11b 0.46 ± 0.08ab 0.94 ± 0.09c,*
SIF NDa,* NDa,* NDa,* NDa,* NDa,* NDa,*
  1. Values expressed as mg/g DW
  2. ND not detected, DW distilled water extraction, SGF simulated gastric fluid digestion, SIF simulated intestinal fluid digestion
  3. Values not sharing a common letter within the same row indicate a significant difference (p < 0.05). In the same monomer phenolic and the same variety
  4. * Stands for significant difference with DW (p < 0.05). mean ± SD, n = 3. The content of A-type procyanidin trimer was calculated by the standard curve of procyanidin A2