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Urinary excretion of antioxidants in healthy humans following Queen Garnet plum juice ingestion: a new plum variety rich in antioxidant compounds

Citation

Netzel, M and Fanning, K and Netzel, G and Zabaras, D and Karagianis, G and Treloar, T and Russell, D and Stanley, R, Urinary excretion of antioxidants in healthy humans following Queen Garnet plum juice ingestion: a new plum variety rich in antioxidant compounds, Journal of Food Biochemistry, 36, (2) pp. 159-170. ISSN 0145-8884 (2012) [Refereed Article]

Copyright Statement

Copyright 2011 Wiley Periodicals, Inc.

DOI: doi:10.1111/j.1745-4514.2010.00522.x

Abstract

In recent years, there has been intense interest in the potential health benefits of dietary derived plant polyphenols and antioxidants. A new variety of Prunus salicina, Queen Garnet plum (QGP), was developed as a high anthocyanin, high antioxidant plum, in a Queensland Government breeding program. Following consumption of 400 mL QGP juice (QGPJ; 1,117 mg anthocyanins) by two healthy male subjects, QGP anthocyanins (cyanidin-3-glucoside and cyanidin-3-rutinoside) were excreted mainly as methylated and glucuronidated metabolites in urine (0.5% of the ingested dose within 24 h). Furthermore, QGPJ intake resulted in a threefold increase in hippuric acid excretion (potential biomarker for total polyphenols intake and metabolite), an increased urinary antioxidant capacity and a decreased malondialdehyde excretion (biomarker for oxidative stress) within 24 h as compared with the polyphenol-/antioxidant-free control. Results from this pilot study suggest that metabolites, and not the native QGP anthocyanins/polyphenols, are most likely the bioactive compounds in vivo.

Item Details

Item Type:Refereed Article
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Biochemistry and Physiology
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural Crops
Objective Field:Stone Fruit
Author:Stanley, R (Dr Roger Stanley)
ID Code:97661
Year Published:2012
Web of Science® Times Cited:14
Deposited By:TIA - Research Institute
Deposited On:2015-01-07
Last Modified:2015-04-29
Downloads:0

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