Li Shu-Fang, Feng Kun, Huang Ru-Meng, Wei Yun-Shan, Wu Hong
Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China.
Henan Key Laboratory of Cold Chain Food Quality and Safety Control, College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China.
Foods. 2022 Nov 30;11(23):3872. doi: 10.3390/foods11233872.
This study evaluated the protective effects of different synbiotic microcapsules on the viability of encapsulated GIM1.648 fabricated by electrospraying. The optimum amount of substrate for three synbiotic microcapsules separately containing fructooligosaccharide (FOS), fish oil, and the complex of both were 4% FOS (SPI-F-L-P), 20 μL fish oil (SPI-O-L-P) and the complex of 20 μL fish oil, and 2% FOS (SPI-O-F-L-P), respectively. The obtained synbiotic microcapsules had a better encapsulation efficiency (EE) and survival rate (SR) after in vitro digestion than microcapsules without the addition of substrate (SPI-L-P) and SPI-O-F-L-P presented the highest EE (95.9%) and SR (95.5%). When compared to SPI-L-P, the synbiotic microcapsules possessed a more compact structure as proved by the SEM observation and their cell viability were significantly improved in response to environmental stresses (heat treatment, freeze drying, and storage). The synbiotic microcapsules containing the complex of FOS and fish oil showed the best beneficial effect, followed by ones with fish oil and then FOS, suggesting the FOS and fish oil complex has more potential in application.
本研究评估了不同合生元微胶囊对通过电喷雾制备的包封GIM1.648存活率的保护作用。分别含有低聚果糖（FOS）、鱼油以及两者复合物的三种合生元微胶囊的最佳底物量分别为4% FOS（SPI-F-L-P）、20 μL鱼油（SPI-O-L-P）以及20 μL鱼油与2% FOS的复合物（SPI-O-F-L-P）。与未添加底物的微胶囊（SPI-L-P）相比，所制备的合生元微胶囊在体外消化后具有更好的包封效率（EE）和存活率（SR），且SPI-O-F-L-P呈现出最高的EE（95.9%）和SR（95.5%）。扫描电子显微镜观察证明，与SPI-L-P相比，合生元微胶囊结构更紧凑，并且在应对环境压力（热处理、冷冻干燥和储存）时其细胞活力显著提高。含有FOS和鱼油复合物的合生元微胶囊显示出最佳有益效果，其次是含鱼油的微胶囊，然后是含FOS的微胶囊，这表明FOS和鱼油复合物在应用中具有更大潜力。
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