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/10.1016/j.indcrop.2020.112675

Year: 2020

Source:

Latin Name: Vitis vinifera L.
Common Name: Red grape
Cultivar/variety: Touriga Nacional
Class: Fruit
Part: Stem
Origin: Portugal
Industry: Wine production
Industrial process step: Destemming
Scale: Industrial
Number of Lots: 1
Number of Replicates Within One Lot: 3
Moisture Content: N.A.

Pretreatment:

Sample: Pretreated
Defatting: No
Drying: Oven drying
Thermal/Non Thermal: No
Particle Size: N.A.

Extraction:

Technique: Solid-liquid extraction
Solvent: Aqueous methanol
Hydrolysis: No

Total Phenols Content:

Unit: N.A.
TPspectrophotometric: N.A.
TPhplc: 4.54
Unit: mg/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
Protocatechuic acid 0.40000 0.02000 Catechin 2.03000 0.08000 Resveratrol 0.14000 0.00000 0.00000 0.00000 0.00000 0.00000
trans-Cinnamic acid 0.16000 0.01000 Epicatechin 0.18000 0.01000 Ɛ-Viniferin 0.11000 0.01000 0.00000 0.00000 0.00000 0.00000
Caftaric acid 0.98000 0.08000 Quercetin-3-O-Rutinoside 0.44000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 Malvidin-3-O-Glucoside 0.01000 0.01000 0.00000 0.00000 0.00000 0.00000 0.00000 0.00000
∑TPHPLC: 4.45