Improved Viability and Thermal Stability of the Probiotics Encapsulated in a Novel Electrospun Fiber Mat
Kun Feng, Meng‐Yu Zhai, Ying Zhang, Robert J. Linhardt, Min‐Hua Zong, Lin Li +1 more
Journal of Agricultural and Food Chemistry
Abstract
For the enhancement of the probiotics' survivability, a nanostructured fiber mat was developed by electrospinning. The probiotic Lactobacillus plantarum was encapsulated in the nanofibers with fructooligosaccharides (FOS) as the cell material. Fluorescence microscope image and scanning electron microscopy (SEM) showed that viable cells were successfully encapsulated in nanofibers (mean diameter = 410 ± 150 nm), and the applied voltage had no significant influence on their viability ( P > 0.05). A significantly improved viability (1.1 log) was achieved by incorporating 2.5% (w/w) of FOS as the electrospinning material ( P < 0.001). Additionally, compared with free cells, the survivability of cells encapsulated in electrospun FOS/PVA/ L. plantarum nanofibers was significantly enhanced under moist heat treatment (60 and 70 °C). This study shows that the obtained nanofiber is a feasible entrapment structure to improve the viability and thermal stability of encapsulated probiotic cells and provides an alternative approach for the development of functional food.
Extracted Claims
6 claims extracted from this paper into the knowledge graph
nanofibers had mean diameter 410 ± 150 nm
“Fluorescence microscope image and scanning electron microscopy (SEM) showed that viable cells were successfully encapsulated in nanofibers (mean diameter = 410 ± 150 nm)”
viability improved by 1.1 log
“A significantly improved viability (1.1 log) was achieved by incorporating 2.5% (w/w) of FOS as the electrospinning material ( P < 0.001).”
survivability of cells encapsulated in electrospun FOS/PVA/L. plantarum nanofibers enhanced under moist heat treatment (60 and 70 °C)
“Additionally, compared with free cells, the survivability of cells encapsulated in electrospun FOS/PVA/ L. plantarum nanofibers was significantly enhanced under moist heat treatment (60 and 70 °C).”