Luo Boya, An Xingye, Yang Jian, Liu Liqin, Zhang Hao, Hu Qin, Zhang Runqing, Nie Shuangxi, Wu Shijie, Cao Haibing, Cheng Zhengbai, Liu Hongbin
Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China.
Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China.
Carbohydr Polym. 2021 Jun 1;261:117865. doi: 10.1016/j.carbpol.2021.117865. Epub 2021 Feb 27.
Nowadays, wood pulp addition (such as softwood, hardwood, etc.) into manufacture reconstructed tobacco sheet (RTS) via a paper-making process is a feasible and sustainable technology. However, the addition of wood pulp in RTS would weaken the tobacco fragrance of cigarette by bring wood gas when smoking. In this study, a practical and feasible pretreatment by hot water/cooking process combined with cationic modification/homogenization treatment was proposed to directly isolate desirable cellulose nanofibers from tobacco stem, named TCNF. The obtained TCNF was applied in the preparation of RTS to improve its physical properties but with a reduced wood pulp proportion (from 25 wt% decreased to 16 wt%). Results showed that TCNF exhibit a similar morphology with wood based nanocellulose, and that the addition of TCNF (0.5 wt% based dried tobacco pulp) can substitute 9 % of wood pulp compared with that of the control at the similar physical properties.
如今，通过造纸工艺将木浆（如软木、硬木等）添加到再造烟叶（RTS）的制造中是一种可行且可持续的技术。然而，在再造烟叶中添加木浆会在吸烟时带来木材气味，从而削弱卷烟的烟草香气。在本研究中，提出了一种实用可行的预处理方法，即通过热水/蒸煮工艺结合阳离子改性/均质化处理，直接从烟梗中分离出所需的纤维素纳米纤维，命名为TCNF。将所得的TCNF应用于再造烟叶的制备中，以改善其物理性能，同时降低木浆比例（从25 wt%降至16 wt%）。结果表明，TCNF与木质纳米纤维素具有相似的形态，并且在相似的物理性能下，添加TCNF（基于干烟草浆为0.5 wt%）与对照相比可替代9%的木浆。
