Table 3. Polyphenol compounds in Moru wine and non-alcoholic Moru wine
Compounds | Concentration (μg/mL) |
Moru wine | NA-AD1) | NA-VD2) |
Gallic acid | 10.35±0.013)c4) | 24.69±0.04a | 23.49±0.06b |
Protocatechuic acid | 2.02±0.00c | 6.84±0.44a | 4.74±0.04b |
Unknown 1(RT=10.2 min) | Not quantifiable | Not quantifiable | Not quantifiable |
Chlorogenic acid | 0.88±0.00c | 3.20±0.40b | 4.12±0.14a |
Vanillic acid | 3.38±0.03c | 12.91±0.42a | 12.15±0.08b |
Caffeic acid | 2.42±0.00c | 3.82±0.06b | 9.26±0.05a |
Syringic acid | 9.29±0.02c | 43.98±0.05a | 38.48±0.12b |
Epicatechin | ND5) | ND | ND |
Unknown 2(RT=26.6 min) | Not quantifiable | Not quantifiable | Not quantifiable |
t-Ferulic acid | 0.54±0.02b | 1.25±0.04a | 1.38±0.25a |
Rutin | 2.32±0.20a | 2.30±0.02a | 2.04±0.05b |
Naringin | 0.36±0.02 | 0.84±0.56 | 0.55±0.02 |
t-Cinnamic acid | 0.32±0.04c | 0.46±0.05b | 0.59±0.00a |
Naringenin | ND | ND | ND |
Kaempferol | ND | ND | ND |
Total | 31.88±0.18c | 100.28±0.79a | 96.80±0.13b |
1)Non-alcoholic Moru wine produced by atmospheric pressure method.
2)Non-alcoholic Moru wine produced by reduced pressure method.
3)All values are mean±SD (n=3).
4)a-cMeans with different superscripts in the same row are significantly different at p<0.05 by Duncan’s multiple range test.
5)ND, not detected.