Ribeiro Ruan S A, Pohlmann Bruno C, Calado Veronica, Bojorge Ninoska, Pereira Nei
Department of Chemical and Petroleum Engineering Federal Fluminense University Niterói Rio de Janeiro Brazil.
School of Chemistry Center of Technology Federal University of Rio de Janeiro Rio de Janeiro Brazil.
Eng Life Sci. 2019 Feb 27;19(4):279-291. doi: 10.1002/elsc.201800158. eCollection 2019 Apr.
There is a great interest in increasing the levels of production of nanocellulose, either by adjusting production systems or by improving the raw material. Despite all the advantages and applications, nanocellulose still has a high cost compared to common fibers and to reverse this scenario the development of new, cheaper, and more efficient means of production is required. The market trend is to have an increase in the mass production of nanocellulose; there is a great expectation of world trade. In this sense, research in this sector is on the rise, because once the cost is not an obstacle to production, this material will have more and more market. Production of the cellulose fibers is determinant for the production of nanocellulose by a hydrolyzing agent with a reasonable yield. This work presents several aspects of this new material, mainly addressing the enzymatic pathway, presenting the hydrolysis conditions such as pH, biomass concentration, enzymatic loading, temperature, and time. Also, the commonly used characterization methods are presented, as well as aspects of the nanocellulose production market.
人们对提高纳米纤维素的产量有着浓厚的兴趣，无论是通过调整生产系统还是改进原材料。尽管纳米纤维素具有诸多优点和应用，但与普通纤维相比，其成本仍然很高，为了扭转这种局面，需要开发新的、更便宜且更高效的生产方法。市场趋势是纳米纤维素的大规模生产将会增加；人们对世界贸易寄予厚望。从这个意义上说，该领域的研究正在兴起，因为一旦成本不再是生产的障碍，这种材料将会拥有越来越大的市场。纤维素纤维的生产对于通过水解剂以合理产率生产纳米纤维素至关重要。本文介绍了这种新材料的几个方面，主要讨论了酶促途径，给出了水解条件，如pH值、生物质浓度、酶负载量、温度和时间。此外，还介绍了常用的表征方法以及纳米纤维素生产市场的情况。
