Extraction of antioxidant and polyphenol compounds from Tokaji aszú marc with iso-propanol-water solvent

The aim of this study was to determine the best parameter of extracting total phenol content (TPC) and antioxidant capacity (AC) from Tokaji Aszú using isopropanol – water solvent. The solid/liquid ratio was used 1:4. Different parameters such as solvent concentration (0, 25, 50, 75, 100%), time (0....

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Bánvölgyi Szilvia
Namukwambi Fiina K.
Kiss István
Stefanovits-Bányai Éva
Vatai Gyula
Testületi szerző: International Symposium on Analytical and Environmental Problems (23.) (2017) (Szeged)
Dokumentumtípus: Könyv része
Megjelent: 2017
Sorozat:Proceedings of the International Symposium on Analytical and Environmental Problems 23
Kulcsszavak:Élelmiszeripari technológia, Kémia
Online Access:http://acta.bibl.u-szeged.hu/56231
Leíró adatok
Tartalmi kivonat:The aim of this study was to determine the best parameter of extracting total phenol content (TPC) and antioxidant capacity (AC) from Tokaji Aszú using isopropanol – water solvent. The solid/liquid ratio was used 1:4. Different parameters such as solvent concentration (0, 25, 50, 75, 100%), time (0.5, 1, 2, 3, 4, 5) and temperature (30, 45 and 60 ºC) were investigated. The total phenol content (TPC) and antioxidant capacity (AC) were determined in the extracts using spectrophotometric analysis. SPSS statistical software was used to determine the significant difference (One-Way ANOVA, post hoc multiple comparisons, Scheffe test at significance level 0.05). The binary solvent (a mixture of water and isopropanol) was better than mono-solvent (pure water or 100% isopropanol). The optimal extracting condition for TPC was achieved at 60 ºC (temperature), 50% (isopropanol) and 4 hrs (time) 7419±36 µM GAE/L while maximized value of AC was 5228±11µM ASE/L reached at 60 ºC (temperature), 25% (isopropanol) and 4 hrs (time).
Terjedelem/Fizikai jellemzők:373-378
ISBN:978-963-306-563-1