The fibres and polyphenols in sea buckthorn (Hippophae rhamnoides) extraction residues delay postprandial lipemia.

摘要

The triacylglycerol (TAG) response to fatty meals containing dried and crushed berries or berry extraction residues was studied in a postprandial crossover study with healthy normal wt. male volunteers. The berry material included sea buckthorn berries, sea buckthorn CO₂ extraction residue (CO₂-sea buckthorn) and sea buckthorn or blackcurrant CO₂ and ethanol extraction residue (CO₂-EtOH-sea buckthorn, CO₂-EtOH-blackcurrant). Extraction residues were used in order to explore the potential use of valuable side stream components, containing polyphenols and fibre, as human food. Compared to the berry-depleted control, all berry meals delayed lipaemia, whereas there were no differences in the total area under the TAG response curve. The lipaemic delay largely derived from the fibre rather than from the polyphenols. Even so, the effect of polyphenols may be complementary, since sea buckthorn and CO₂-sea buckthorn showed significant differences in relation to the control in a wider range of TAG areas than polyphenol-depleted CO₂-EtOH-sea buckthorn.