Isolation and identification of an O-(2-hydroxypropyl)-maltose from the faeces of rats fed with O-(hydroxypropyl)starch

Abstract

When rats were fed with diets containing hydroxypropylated potato-starches with a degree of substitution up to 0.11, the major metabolite, isolated from the faeces, was shown by mass spectrometry and p.m.r. spectrometry of its peracetate to be 4-O-{2-O-[(RS)-2-hydroxypropyl]-α-D-glucopyranosyl}-D-glucopyranose.