ABSTRACT
During the last few years, the utilization of raw materials from different biorenewable resources has seen a rapid increase for different applications (Thakur et al., 2013b). One of the greatest reasons for this increase is the quest for sustainable development (Santos et al., 2013; Thakur et al., 2014b). The effective utilization of materials from biorenewable resources results in a signicant reduction in the amount of waste hoarded in our environment (Santos et al., 2013). Furthermore, to obtain a higher prot and make our environment green, an efcient reuse of these biorenewable materials is of great importance. The materials obtained from biorenewable resources also exhibit biodegradability, biocompatibility, and antibacterial activity, which are highly desired for several applications (Thakur and Thakur, 2014). Among various biorenewable materials, natural cellulosic polymers are of prime interest as these are abundantly available all around the globe (Thakur et al., 2013d). In each country, depending upon the geographic conditions, different kinds of natural cellulosic polymers are available, which are sometimes used while most of the times are considered as waste product of the biorenewable plants (Thakur et al., 2013c). The effective utilization of these natural cellulosic polymers such as natural cellulosic bers in different industrial processes may result in low-cost environmental friendly value-added products (Thakur and Thakur, 2014). Figure 1.1a and b depicts the classication of bio-based polymers and natural bers (Thakur and Thakur, 2014).
