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

Netzel, Michael, Fanning, Kent, Netzel, Gabriele, Zabaras, Dimitrios, Karagianis, Gloria, Treloar, Tony, Russell, Dougal and Stanley, Roger (2012) 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: 159-170.

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Author Netzel, Michael
Fanning, Kent
Netzel, Gabriele
Zabaras, Dimitrios
Karagianis, Gloria
Treloar, Tony
Russell, Dougal
Stanley, Roger
Title Urinary excretion of antioxidants in healthy humans following Queen Garnet plum juice ingestion: a new plum variety rich in antioxidant compounds
Journal name Journal of Food Biochemistry   Check publisher's open access policy
ISSN 0145-8884
1745-4514
Publication date 2012-04
Year available 2011
Sub-type Article (original research)
DOI 10.1111/j.1745-4514.2010.00522.x
Volume 36
Issue 2
Start page 159
End page 170
Total pages 12
Place of publication Hoboken, NJ, United States
Publisher Wiley-Blackwell
Collection year 2013
Language eng
Formatted 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 asmethylated 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.
Keyword Performance liquid chromatography
Red wine polyphenols
Hippuric acid
Black tea
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online 21 December 2011

 
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