Cellulose Nanofibrils Isolation through High Intensity Sonication

The greeneries around us are rich in fiber which can be used in certain applications. There are many fiber production techniques that have been done to obtain fiber in bulk form. A group researcher from Faculty Bioengineering and Technology has published research output by adopting high-intensity ultrasonication in the isolation process of cellulose nanofibrils. These techniques are very economical, time-saving and environmental-friendly process. Three types of raw organic fibers which are banana pseudostem, oil palm trunk, and kenaf bast was explored for the production of cellulose nanofibril. Figure 1 showed Transmission Electron Microscope (TEM), micrographs confirmed the presence of nanofibrils in all three different types of cellulose nanofibril. Hence it can be deduced that high-intensity ultrasonication is able to simplify the complex process of isolating bulk cellulose nanofibril, for use in the industry generally.

Figure 1. TEM images of Cellulose Nanofibrils extracted from (A) banana pseudostem (B) oil palm and (C) kenaf bast. The red arrows point to cellulose nanofibris while red circle shows the presence of cellulose nanocrystal. (https://doi.org/10.1080/15440478.2021.1881021)

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