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.foodres.2018.04.060

Year: 2018

Source:

Latin Name: Vitis vinifera
Common Name: Grape
Cultivar/variety: Zalema
Class: Fruit
Part: Skin
Origin: Spain
Industry: Wine production
Industrial process step: Vinification
Scale: Industrial
Number of Lots: 1
Number of Replicates Within One Lot: 3
Moisture Content: N.A.

Pretreatment:

Sample: Pretreated
Defatting: No
Drying: Freeze drying
Thermal/Non Thermal: No
Particle Size: ˂2 mm

Extraction:

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

Total Phenols Content:

Unit: mg GAE/g extract
TPspectrophotometric: 91.47
TPhplc: 402.34
Unit: mg/g 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 13.68000 0.75000 Catechin 22.55000 0.58000
Protocatechic acid 8.59000 1.04000 Epicatechin 20.05000 1.92000
Procyanidin B1 31.17000 0.12000
Procyanidin B2 18.09000 0.00000
Procyanidin B2-3-O-gallate 25.66000 0.84000
Procyanidin trimer 25.02000 2.28000
Procyanidin tetramer 21.25000 0.59000
Quercetin-3-O-rutinoside 20.95000 2.75000
Quercetin-3-O-glucoside 161.60000 2.91000
Kaempferol-3-O-glucuronide 5.45000 0.19000
Kaempferol-3-O-glucoside 24.05000 0.06000
Isorhamnetin-3-O-glucoside 4.23000 0.06000
∑TPHPLC: 402.34