Cite us: Teslić, N., Pojić, M., Stupar, A., Mandić, A., Pavlić, B., Mišan, A. (2024) 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/biology10060535

Year: 2021

Source:

Latin Name: Juglans regia L.
Common Name: Walnut
Cultivar/variety: Rubina
Class: Nut
Part: Hull/Husk
Origin: Slovenia
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: Freeze drying
Thermal/Non Thermal: No
Particle Size: N.A.

Extraction:

Technique: Solid-liquid extraction
Solvent: Methanol
Hydrolysis: No

Total Phenols Content:

Unit: mg/100 g
TPspectrophotometric: 2740
TPhplc: 2802.4
Unit: mg/100 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 derivative 2 93.00000 8.90000 Procyanidin dimer 2 333.20000 45.30000
Gallic acid derivative 44.10000 4.30000 Procyanidin dimer derivative 2 178.40000 25.60000
Ellagic acid derivative 123.00000 13.60000 Catechin 797.20000 103.90000
Santin 7.80000 0.10000
5,7-Dihydroxy-3,4-dimetoxyflavone 3.60000 0.50000
Myricetin pentoside 23.10000 3.20000
Myricetin-3-rhamnoside 133.40000 12.90000
Quercetin-3-galactoside 228.00000 25.00000
Quercetin-3-glucoside 133.30000 17.60000
Quercetin-3-arabinopyranoside 78.10000 9.70000
Quercetin-3-arabinofuranoside 92.40000 14.00000
Quercetin-3-rhamnoside 315.10000 47.40000
Quercetin galoyll hexoside 76.90000 10.00000
Kaempferol-7-hexoside 1 107.70000 23.50000
Kaempferol-7-hexoside 2 34.10000 2.70000
∑TPHPLC: 2802.4