4. Conclusion
Microencapsulated powders of probiotic bacteria L. plantarum
was produced by freeze drying and spray drying techniques.
The moisture content of the spray dried powder was lower
than freeze dried powder. Morphology of the freeze dried
powders showed porous, spongy, flake like structure with
irregular size and shape. In contrast, spray dried encapsulated
powders of WPI + SA showed smooth surface and
DWPI + SA had wrinkled rough surface. Spray drying method
produced almost 9–12% less survival of cells compared to
freeze drying method (92–96%). DWPI + SA improved the survival
of probiotics than the WPI + SA and the highest cell viability
of 96% was obtained from freeze drying method while