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.fct.2018.02.056

Year: 2018

Source:

Latin Name: Allium cepa L.
Common Name: Onion
Cultivar/variety: Sunpower
Class: Vegetable
Part: Mix
Origin: South Korea
Industry: Vegetable 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: Freeze drying
Thermal/Non Thermal: No
Particle Size: ˂1 mm

Extraction:

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

Total Phenols Content:

Unit: mg GAE/g DW
TPspectrophotometric: 7.85
TPhplc: 435.3
Unit: mg/100g DW

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
Quercetin-3,4′-O-diglucoside 156.49000 5.20000
Quercetin-4′-O-monoglucoside 226.16000 8.30000
Quercetin 52.65000 1.80000
∑TPHPLC: 435.3