A1 Journal article – refereed

Effect of oat β-glucan of different molecular weights on fecal bile acids, urine metabolites and pressure in the digestive tract – A human cross over trial

List of Authors: Hakkola Salla, Nylund Lotta, Rosa-Sibakov Natalia, Yang Baoru, Nordlund Emilia, Pahikkala Tapio, Kalliomäki Marko, Aura Anna-Maija, Linderborg Kaisa M.

Publisher: Elsevier BV

Publication year: 2021

Journal: Food Chemistry

Journal name in source: Food Chemistry

Volume number: 342

eISSN: 1873-7072

DOI: http://dx.doi.org/10.1016/j.foodchem.2020.128219


While the development of oat products often requires altered molecular weight (MW) of β-glucan, the resulting health implications are currently unclear. This 3-leg crossover trial (n = 14) investigated the effects of the consumption of oat bran with High, Medium and Low MW β-glucan (average > 1000, 524 and 82 kDa respectively) with 3 consequent meals on oat-derived phenolic compounds in urine (UHPLC-MS/MS), bile acids in feces (UHPLC-QTOF), gastrointestinal conditions (ingestible capsule), and perceived gut well-being. Urine excretion of ferulic acid was higher (p < 0.001, p < 0.001), and the fecal excretion of deoxycholic (p < 0.03, p < 0.02) and chenodeoxycholic (p < 0.06, p < 0.02) acids lower after consumption of Low MW β-glucan compared with both Medium and High MW β-glucan. Duodenal pressure was higher after consumption of High MW β-glucan compared to Medium (p < 0.041) and Low (p < 0.022) MW β-glucan. The MW of β-glucan did not affect gut well-being, but the perceptions between females and males differed.

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Last updated on 2021-16-11 at 07:40