Abstract:Araboxylan (AX) and β-glucan (BG) were extracted and purified from highland barley bran, respectively. It was found that both AX and BG could promote the proliferation of Lactobacillus (L.) plantarum and producing short-chain fatty acids, suggesting potential intestinal probiotic effects of AX and BG. Based on this, Lactobacillus plantarum GIM1.191 was co-microcapsuled with AX (M-AX) and BG (M-BG), respectively, and their effects on the encapsulation efficiencies, gastrointestinal tolerance and storage were evaluated. The results showed the encapsulation efficiencies of M-AX and M-BG were increased by 1.4 times, and 1.6 times, respectively, compared with the control group (M-S). After simulated gastrointestinal digestion, no viable probiotics was detected in M-S, however, the viable counts of M-AX and M-BG groups were 5.70 and 6.3 lg(CFU/g), respectively. In addition, AX and BG extended the storage time [viable probiotics counts >6 lg(CFU/g)] from 21 days to 35 days under 4 ℃, and significantly increased the viable probiotics counts at day 14 under 26 ℃. These results will provide theoretical basis and technical support for the high value utilization of highland barley bran.