TY - JOUR
T1 - Urine metabolites and antioxidant effect after oral intake of date (Phoenix dactylifera L.) seeds-based products (powder, bread and extract) by human
AU - Platat, Carine
AU - Hillary, Serene
AU - Tomas-Barberan, Francisco A.
AU - Martinez-Blazquez, J. Alberto
AU - Al-Meqbali, Fatima
AU - Souka, Usama
AU - Al-Hammadi, Suleiman
AU - Ibrahim, Wissam
N1 - Publisher Copyright:
© 2019 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2019/10
Y1 - 2019/10
N2 - A cross-over study was conducted in 16 healthy adult volunteers to describe the urinary excretion of polyphenols from date seeds and investigate the antioxidant effect after consumption of different doses of date seeds powder (DSP), bread (DSB) and extract (DSE). After 12 h of fasting, one of the six treatments (0.25 g and 0.5 g/kg bodyweight DSP, 360 g of 10% and 15% DSB, 30 mg and 60 mg/kg bodyweight DSE) was provided along with breakfast, with a two weeks wash-out period between 2 consecutive treatments. Blood was drawn at baseline, 1, 2, 8 and 24 h post intake. Urine was collected at baseline, 3, 8, and 24 h post intake. An abundant release of polyphenols was detected in urine within the 0–3 h post intake, reached a peak at 8 h, then decreased with polyphenols still being detected up to 24 h post intake. The antioxidant defence system, as measured by reduced glutathione (GSH), was strengthened as soon as 1 h and up to 8 h post intake. Markers of protein and lipid oxidative damages were reduced from 1 h and up to 8 and 24 h post intake, respectively. This supports an antioxidant effect of date seeds products in humans, most probably due to their polyphenols.
AB - A cross-over study was conducted in 16 healthy adult volunteers to describe the urinary excretion of polyphenols from date seeds and investigate the antioxidant effect after consumption of different doses of date seeds powder (DSP), bread (DSB) and extract (DSE). After 12 h of fasting, one of the six treatments (0.25 g and 0.5 g/kg bodyweight DSP, 360 g of 10% and 15% DSB, 30 mg and 60 mg/kg bodyweight DSE) was provided along with breakfast, with a two weeks wash-out period between 2 consecutive treatments. Blood was drawn at baseline, 1, 2, 8 and 24 h post intake. Urine was collected at baseline, 3, 8, and 24 h post intake. An abundant release of polyphenols was detected in urine within the 0–3 h post intake, reached a peak at 8 h, then decreased with polyphenols still being detected up to 24 h post intake. The antioxidant defence system, as measured by reduced glutathione (GSH), was strengthened as soon as 1 h and up to 8 h post intake. Markers of protein and lipid oxidative damages were reduced from 1 h and up to 8 and 24 h post intake, respectively. This supports an antioxidant effect of date seeds products in humans, most probably due to their polyphenols.
KW - Antioxidant
KW - Date seeds
KW - Human
KW - Oxidative damages
KW - Polyphenols
KW - Proanthocyanidins
KW - UPLC-ESI-QTOF(MS/MS)
KW - Urine metabolites
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U2 - 10.3390/nu11102489
DO - 10.3390/nu11102489
M3 - Article
C2 - 31623250
AN - SCOPUS:85073565953
SN - 2072-6643
VL - 11
JO - Nutrients
JF - Nutrients
IS - 10
M1 - 2489
ER -