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Top1. Introduction
Cellulose with an approximate annual natural production of 1.5 ×10 12 tons is the most abundant biopolymer in the world. Cellulose is mainly accessible in lingo cellulosic materials such as wheat, rice, maize and soybeans. In the last 50 years, a great deal of studies has been carried out to use straw as an cellulosic by-product from crop production (Luo & Zhang, 2011; Wu et al., 2010). Rice straw with annual production of 731 million ton is the largest cereal crop in the world. It represents around 45% of the volume in rice production, as the largest quantity of crop residue. In terms of total production, rice is the third most important grain crop in the world behind wheat and corn (Binod et al., 2010; Ranjan & Moholkar, 2011). Rice straw contain about (32-47)% cellulose, (19-27)% hemi-cellulose and (5-24)% lignin (Karimi, Kheradmandinia, & Taherzadeh, 2006; Lu & Hsieh, 2012). Some of these waste lignocellulosic sources such as pine, vine, bamboo linen, jute, hemp, ramie, abaka, sisal, bagase, wheat straw rice husk and straw have diverse cellulose, hemicellulose, and lignin and wax content. These extracted cellulose fiber has been proposed to use in energy and fuel (Gomez et al., Mabee, McFarlane, & Saddler, 2011; Yousef, 2012), chemical materials (Conde et al., 2011; Dhillon et al., 2011), construction and biocomposites (Jarabo et al., 2012; Nourbakhsh & Ashori, 2010; Sahoo, Misra, & Mohanty, 2011).