Figure 4

Scanning electron microscopic photographs at 2000× magnification of encapsulated probiotics. WPI-SO (A); encapsulated probiotics with whey protein isolate and soybean oil at 1:1 ratio, JS-SO (B); encapsulated probiotics with jackfruit inner skin fibre and soybean oil at 1:1 ratio, Optimal formulation (C); encapsulated probiotics with whey protein isolate, soybean oil, and jackfruit inner skin fibre at 3.9:2.4:3.7 ratio.