PMID:
Food Nutr Res. 2019 ;63. Epub 2019 Apr 26. PMID: 31073285
Abstract Title:
Antioxidant, antimicrobial, and antiproliferative activity-based comparative study of peel and flesh polyphenols from.
Abstract:
Background: Kiwifruit () peel has been always considered as useless because of the harsh taste. To promote the full utilization of kiwifruit resources it is essential to explore the nutritional benefits of kiwifruit peel.Objective: Our studies explored the difference in polyphenolic composition and biological activity including antioxidant, antimicrobial, and antiproliferative activity of the flesh and peel of kiwifruit.Design: Antioxidant activity of the extracted polyphenols of the peel and flesh ofwas checked by 2,2-diphenyl-1-picrylhydrazyl, 2,2'-azino-bis3-ethylbenzothiazoline-6-sulphonic acid (ABTS), hydroxyl ion reduction, and ion chelating ability. Antibacterial activity against,, andand antiproliferative activityHepG2 was tested in a dose- and time-dependent manner. Liquid chromatography/mass spectrometry (LC/MS) chromatogram of the peel and flesh further differentiated the phenolic acid profile.Results: The pericarp of kiwifruit was found to be more abundant in polyphenols and flavonoids than the flesh, with contents of 12.8 mg/g and 2.7 mg/g, respectively. LC/MS analysis revealed that the catachin, quercetin and epigallocatechin content (the main polyphenols in kiwifruit) in the peel was significantly higher than in the flesh (
Health Time 