Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5156426 | Carbohydrate Polymers | 2018 | 21 Pages |
Abstract
Varying levels of high pressure homogenization (HPH) were applied to disintegrate bacterial nanofibrillated cellulose (BNFC) from bacterial cellulose (BC). HPH was considered as a simple, non-toxic and highly efficient physical method for nanofibrillated cellulose extraction. The blended BC passed through chambers at high pressures of 68, 138 and 207Â MPa for 30 cycles. The particle size confirmed disintegration of the BC network fibers to bundles of BNFC and the atomic force microscopy images showed the decreased diameter of individual BNFC in the range 36-67Â nm. Fourier transform infrared spectroscopy measurement indicated there were no change in the chemical functional groups of the BNFC compared with BC. The decreased crystallinity index and crystallite size of BNFC with increased pressure confirmed the effect of HPH on the BNFC. Nevertheless, BNFC at 207Â MPa had the lowest thermal stability due to having the highest surface area, which resulted in the minimum nanofiber diameter.
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Napakarn Kawee, Nga Tien Lam, Prakit Sukyai,