Correlation between water-holding capacity of different types of cellulose in vitro and gastrointestinal retention time in vivo of rats

摘要: Rats were assigned to a fibre-free basal diet or one of three indigestible and poorly fermentable food components (cellulose powder, microfibril cellulose prepared from by milling, plastic particles) incorporated in the at level 7%. The mean retention time (MRT) whole gut measured with solid liquid markers. Further, caecal weight content organic acids as well faecal moisture determined. digesta rats fed was lower than that components. differed between different groups decreased following order: cellulose, particles; ie same order for settling volume water. MRTs phase (MFC), (CEL), particles (PLS) (BD) 9.4, 11.1, 13.6 17.8 h respectively. liquids MFC, CEL, PLS BD 12.9, 15.0, 14.2 13.9 h, Thus, there an inverse relationship (r = 0.74, P < 0.01) MRT volume, whereas not significantly affected diets. Any effect on concentration acid pH contents could be detected any Although significance differences total amount produced caecum diets detected, 0.61, found. These results suggest water, which closely parallels water-holding capacity components, gastrointestinal types cellulose.