Fig. 6From: Potential ramifications of the effects of sub-lethal ultraviolet B-radiation on the subsequent three subcultures of Lactobacillus fermentum BT 8219 during fermentation in biotin-supplemented soymilk and their probiotic propertiesBile tolerability of control and UV-treated L. fermentum BT 8219 cells in different bile media. a Parent cells, b first subculture, c second subculture, d third subculture. Control Untreated cells; a corresponding control was used for comparison in each subculture. Results are expressed as the mean ± SEM (n = 3). Asterisk indicates significant difference in the means within the same type of bile media between the control and UV-treated cells (P < 0.05) in an independent t test. Time** Time (h) required to increase absorbance by 0.3 units at 620 nmBack to article page