School of Life Sciences and Biotechnology, Korea University, 5-1 Anam-dong, Sungbuk-ku, Seoul 136-701, South Korea.
Food Chem. 2013 Nov 15;141(2):1041-9. doi: 10.1016/j.foodchem.2013.03.103. Epub 2013 Apr 15.
An innovative approach was performed to prepare novel pullulan/starch blended edible films by direct incorporation of multiple probiotic bacterial strains. Various starches different in origin were blended into the pullulan solutions with different ratios. The physical and mechanical properties of the films were investigated in the presence and absence of probiotic cells. An increase in the starch content of pullulan films resulted in a substantial decrease in relative cell viabilities and mechanical properties. Moreover, slight changes in the physical and mechanical properties of the films were observed with the addition of probiotic strains. Pullulan and pullulan/potato starch films were found to be the most suitable carrier matrices, with a maximum relative cell viability of 70-80% after 2months of storage at 4°C. The results suggest that pullulan and pullulan/starch films can be used as effective delivery and carrier systems for probiotics.
采用创新方法，通过直接掺入多种益生菌菌株，制备新型普鲁兰/淀粉共混可食用膜。不同来源的各种淀粉以不同的比例与普鲁兰溶液混合。研究了存在和不存在益生菌细胞时，薄膜的物理和机械性能。随着普鲁兰薄膜中淀粉含量的增加，相对细胞活力和机械性能显著下降。此外，添加益生菌菌株后，薄膜的物理和机械性能也略有变化。在 4°C 下储存 2 个月后，发现普鲁兰和普鲁兰/马铃薯淀粉薄膜是最合适的载体基质，相对细胞活力最高可达 70-80%。结果表明，普鲁兰和普鲁兰/淀粉薄膜可用作益生菌的有效递送和载体系统。
