Cite us: Teslić, N., Pojić, M., Stupar, A., Mandić, A., Pavlić, B., Mišan, A. (2025) PhInd—Database on Polyphenol Content in Agri-Food By-Products and Waste: Features of the Database. Antioxidants, 13, 97. https://doi.org/10.3390/antiox13010097
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DOI: https://doi.org/10.3390/foods9050604

Year: 2020

Source:

Latin Name: Vitis vinifera L.
Common Name: Grape
Cultivar/variety: Merlot
Class: Fruit
Part: Stem
Origin: Spain
Industry: Fruit processing
Industrial process step:
Scale: Laboratory
Number of Lots: 1
Number of Replicates Within One Lot: 2
Moisture Content: N.A.

Pretreatment:

Sample: Pretreated
Defatting: No
Drying: Oven drying
Thermal/Non Thermal: No
Particle Size: ˂1 mm

Extraction:

Technique: Pressurized-liquid extraction
Solvent: Aqueous ethanol
Hydrolysis: No

Total Phenols Content:

Unit: mg GAE/g DW extract
TPspectrophotometric: 185.3
TPhplc: 10.38
Unit: mg GAE/g DW extract

Individual compounds

Polyphenol class

Individual Compounds:

Phenolic Acids / Derivatives Content STD Flavonoids / Derivatives Content STD Stilbenes / Derivatives Content STD Lignans Content STD Other Content STD
Gallic acid 0.54100 0.02900 Catechin 2.42200 0.03400 trans-Piceid 0.01600 0.00000
Protocatechuic acid 0.00800 0.00000 Epicatechin 1.29300 0.03900 trans-Resveratrol 0.14100 0.00300
4-Hydroxybenzoic acid 0.04800 0.00100 Epicatechin gallate 0.24500 0.00500 ε-Viniferin 0.87900 0.06500
Vanillic acid 0.22400 0.01000 Procyanidin B1 1.41000 0.03400 cis-Resveratrol trimer 0.03100 0.00200
Syringic acid 0.20200 0.01500 Procyanidin B2 0.01500 0.00300 trans-Resveratrol trimer 0.05400
Ethyl gallate 0.01000 0.00100 Procyanidin B3 0.34900 0.02500 trans-Resveratrol tetramer 0.22200
Ellagic acid 0.07300 0.00400 Procyanidin B4 0.03600 0.00200 cis-Resveratrol tetramer 0.03800 0.00300
trans-Caftaric acid 0.35700 0.00300 Procyanidin B7 0.02500 0.00300
trans-Caffeic acid 0.00600 0.00000 Procyanidin C1 0.01600 0.00100
4-Coumaric acid 0.00400 0.00000 Quercetin-3-O-galactoside 0.04700 0.00000
3-Coumaric acid 0.00300 0.00000 Quercetin-3-O-rutinoside 0.02900 0.00000
Coumaroyl-O-glucoside 0.00300 0.00000 Quercetin-3-O-glucuronide 1.42500 0.00100
trans-Ferulic acid 0.00800 0.00000 Quercetin-3-O-glucoside 0.10600 0.00400
Quercetin 0.00500 0.00000
Cyanidin-3-O-glucoside 0.01000 0.00100
Malvidin-3-O-glucoside 0.07900 0.00200
∑TPHPLC: 10.38