Polyphenolic Compounds, Antioxidant, and Cardioprotective Effects of Pomace Extracts from Fetească Neagră Cultivar
Table 1
Phytochemical analysis of grape pomace from cv. Fetească neagră 2015.
GP
TPI (mg catechin equivalent/g d.w.)
TC (mg epicatechin/g d.w.)
TAC (malvidin-3-O-glucoside mg/g d.w.)
FNFs
114.71 ± 15.86
63.15 ± 7.12
184.84 ± 17.13
FNFr
161.58 ± 3.42
113.98 ± 4.39
47.67 ± 5.0
Proanthocyanidins (mg/g d.w.)
mDP
PD%
G%
FNFs
25.57 ± 3.82
6.29 ± 0.16n.s.
8.18 ± 0.49
19.93 ± 0.41
FNFr
28.71 ± 9.78
5.64 ± 1.33
3.91 ± 1.12
21.69 ± 1.50n.s.
∑ flavan-3-ol monomers (mg/g d.w.)
(+)-catechin (mg/g d.w.)
(−)-epicatechin (mg/g d.w.)
epicatechin-3-O-gallate (mg/g d.w.)
FNFs
2.05 ± 0.21
1.12 ± 0.10
0.87 ± 0.09
0.06 ± 0.01
FNFr
4.71 ± 0.17
2.59 ± 0.01
2.05 ± 0.16
0.07 ± 0.00n.s.
Transresveratrol (μg/g d.w.)
cis-resveratrol (μg/g d.w.)
Transpiceid (μg/g d.w.)
cis-Piceid (μg/g d.w.)
FNFs
3.22 ± 1.91
5.03 ± 1.09
53.54 ± 10.53
33.04 ± 8.14
FNFr
0.58 ± 1.01
12.27 ± 3.07
14.31 ± 2.25
7.67 ± 1.99
Values are expressed as average ± standard deviation () ,,, and . GP: grape pomace; Fs: fresh; Fr: fermented; FN: Fetească neagră; TPI: total phenolic index; TC: tannins concentration; TAC: total anthocyanin content; mDP: mean degree of polymerization; PD: prodelphinidins; G%: galloylation.