2013, 29(9):2110-2114.
Abstract:
To investigate the influence of raw banana powder (RBP) on intestinal floras, SD rats were divided into 4 groups: normal control group (NCG, n=8), low-dose group (LDG, n=8), middle-dose group (MDG, n=8), and high-dose group (HDG, n=8). While gastric perfusion of distilled water was given to those in NCG and DCG. Collect the feces before and after the 4-week intervention to measure the distribution of intestinal flora (Escherichia coli, Bacillus subtilis, Enterococci, Bifidobacterium, Lactobacillus). Then the colon contents of the rats were collected, and their pH value and short chain fatty acid (SCFA) content were measured. Results showed that RBP can help to control weight gain. The body weight of HDG and MDG were 263.50±8.71 g and 258.25±11.89 g, respectively, after intervention, significantly below DCG (278.75±5.06 g). RBP had the effect of promoting defecation. The defecation amounts of the intervention groups (182.57±12.80 g, 188.00±17.09 g and 163.00±8.75 g) were significantly higher than that in DCG (146.57±20.44 g). RBP can increase the colony number of Bifidobacterium, Lactobacillus and Bacillus subtilis, reduce the number of Enterococci falls and increase the B/E value. And the B/E values of the intervention groups (1.17±0.15, 1.24±0.08 and 1.21±0.11) were significantly higher than DCG (1.13±0.07). RBP can increase SCFA contents of different groups (188.50±46.90 mmol/L, 118.60±32.41 mmol/L and 61.42±10.80 mmol/L) and decrease the pH value of colon content in the intervention groups. Therefore, RBP can significantly improve the intestinal flora, increase their glycolytic products SCFA and reduce intestinal pH value.
