Blueberries (Vaccinium corymbosum L.) are rich sources of phenolics and anthocyanins (ACNs). We investigated the absorption of ACNs after consumption of one portion (300 g) of minimally processed blueberry purée (P) obtained from blanched (BL) or unblanched (NB) berries. A repeated-measures, crossover design study was conducted on healthy human volunteers. Blood was drawn between baseline and 24 h after BL-P or NB-P consumption, while urine were collected from the day before the experiment up to 48 h. Total plasma ACN content was not significantly different, while phenolics content was higher in BL-P with respect to NB-P. The maximum ACN absorption in plasma was observed after 1.5 h from the intake of the purées and was significantly higher (p ≤ 0.05) after the intake of BL-P. Both products increased the excretion of hippuric acid in urine. In conclusion, blanching had no significant effect on total ACN content and enhanced their absorption from minimally processed purées.

Blanching improves anthocyanin absorption from highbush blueberry (Vaccinium corymbosum L.) purée in healthy human volunteers: a pilot study / C. Del Bò, P. Riso, A. Brambilla, C. Gardana, A. Rizzolo, P. Simonetti, G. Bertolo, D. Klimis Zacas, M. Porrini. - In: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY. - ISSN 0021-8561. - 60:36(2012 Sep), pp. 9298-9304.

Blanching improves anthocyanin absorption from highbush blueberry (Vaccinium corymbosum L.) purée in healthy human volunteers: a pilot study

C. Del Bò;P. Riso
;
A. Brambilla;C. Gardana;P. Simonetti;M. Porrini
Ultimo
2012

Abstract

Blueberries (Vaccinium corymbosum L.) are rich sources of phenolics and anthocyanins (ACNs). We investigated the absorption of ACNs after consumption of one portion (300 g) of minimally processed blueberry purée (P) obtained from blanched (BL) or unblanched (NB) berries. A repeated-measures, crossover design study was conducted on healthy human volunteers. Blood was drawn between baseline and 24 h after BL-P or NB-P consumption, while urine were collected from the day before the experiment up to 48 h. Total plasma ACN content was not significantly different, while phenolics content was higher in BL-P with respect to NB-P. The maximum ACN absorption in plasma was observed after 1.5 h from the intake of the purées and was significantly higher (p ≤ 0.05) after the intake of BL-P. Both products increased the excretion of hippuric acid in urine. In conclusion, blanching had no significant effect on total ACN content and enhanced their absorption from minimally processed purées.
Blueberry; blanching; anthocyanins; absorption; human
Settore MED/49 - Scienze Tecniche Dietetiche Applicate
set-2012
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/207667
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