Antimicrobial Edible Film Prepared from Bacterial Cellulose Nanofibers/Starch/Chitosan for a Food Packaging Alternative

Figure 2

FESEM images of the fracture surface for the pure starch film (a), pure chitosan film (b), starch/chitosan film (c), GU/CH/15BC film (d), and GU/CH/20BC film (e).

(a)

(b)

(c)

(d)

(e)