EVALUATION OF THE CRYSTALLINITY OF BACTERIAL CELLULOSE PRODUCED FROM PINEAPPLE WASTE SOLUTION BY USING ACETOBACTER XYLINUM

Bacterial cellulose (BC) is a fermentative product of Acetobacter xylinum characterized by high purity and crystallinity up to 80%. Due its excellent physical mechanical properties, bacterial increasingly interested in research, especially the study applying BC different fields. Although it potential direction, large-scale production still has certain limitations, mainly fermentation medium's cost. Therefore, this used pineapple waste as carbon source for fermentation. After investigating influence factors on yield, focused evaluating under conditions. The X-ray diffraction technique was determine crystallinity, while Scanning Electron Microscopy assess differentiation structure. results showed that, at conditions temperature (25–35°C), time (5–10 days), concentration (5–15%), significantly range 40.6 % 83.4 %. optimum recorded when experiment set 30°C, 13 days time, 14%, with being 82.2%.