کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2687341 | 1143012 | 2009 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Tocopherol isomer pattern in serum and stool of human following consumption of black currant seed press residue administered in whole grain bread Tocopherol isomer pattern in serum and stool of human following consumption of black currant seed press residue administered in whole grain bread](/preview/png/2687341.png)
SummaryBackground & aimsSerum γ-tocopherol is thought to be associated with human health. The dietary influence of tocopherol and fibre-rich black currant seed press residue on serum and stool tocopherol concentration was investigated in a controlled human intervention study.MethodsThirty-six women consumed bread enriched with black currant press residue (4 weeks). The resultant faecal and serum tocopherol concentrations were compared with those after a period consuming control bread without press residue and a normal baseline diet. Fibre intake and excretion, antioxidant capacity (TEAC), and vitamin C concentrations in serum and urine were also determined. Samples were obtained with a 5-day standardised diet at the end of each period.ResultsThe press residue bread lead to significantly increased β-, γ-, δ- and total tocopherol intake, serum α-, β-, γ- and total tocopherol concentration (with and without lipid adjustment), fibre intake and urinary vitamin C concentration compared to control bread (P < 0.05). Faecal excretion of total tocopherols and fibre increased compared to baseline (P < 0.05).ConclusionsFibre intake and excretion influence total tocopherol concentration in lipid-adjusted serum and in stool. The outstandingly high increase of serum γ-tocopherol concentration through seed press residue consumption could be due to a presumed interruption of the enzymatic tocopherol degradation mechanism by bread constituents.
Journal: Clinical Nutrition - Volume 28, Issue 6, December 2009, Pages 662–667