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/10.1007/s12649-020-01246-4

Year: 2021

Source:

Latin Name: Corylus avellana L.
Common Name: Hazelnut
Cultivar/variety: Grada de Viseu
Class: Nut
Part: Hull/Husk
Origin: Portugal
Industry: Nut processing
Industrial process step:
Scale: Laboratory
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: Methanol
Hydrolysis: No

Total Phenols Content:

Unit: mg GAE/g
TPspectrophotometric: 13.01
TPhplc: 8.14
Unit: mg/g

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 0.61000 0.02000 quercetin-3-O-rutinoside 0.35000 0.02000
Protocatechuic acid 1.63000 0.02000 Kaempferol-3,7-O-diglucoside 1.66000 0.06000
Vanillic acid 0.32000 0.01000 Kaempferol-3-O-[6-acetylglucoside]-7-O-glucoside 1.29000 0.06000
Kaempferol-3-O-[6-acetylglucoside]-7-O-rhamnoside 0.43000 0.00000
luteolin-7-O-rutinoside 0.90000 0.00000
Epicatechin 0.95000 0.00000
∑TPHPLC: 8.14