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Full utilization of sweet sorghum for bacterial cellulose production: A concept of material crop
Industrial Crops and Products ( IF 5.9 ) Pub Date : 2021-01-15 , DOI: 10.1016/j.indcrop.2021.113256
Qing Wang , Pleasure Chisom Nnanna , Fei Shen , Mei Huang , Dong Tian , Jinguang Hu , Yongmei Zeng , Gang Yang , Shihuai Deng

In this work, the whole biomass of sweet sorghum [Sorghum bicolor (L.) Moench], including the sugar-rich juice and lignocellulosic parts (root, stalk, and leaf), was individually investigated as carbon sources for bacterial cellulose (BC) production. The juice part was employed directly, and the lignocellulosic parts were pretreated by PHP (phosphoric acid plus hydrogen peroxide) to yield the fermentable sugar for BC production. Results indicated that the BC yield from the root (2.28 g/L), stalk (1.82 g/L), and leaf (2.54 g/L) was 1.86–2.59-fold higher than the commercial d-glucose medium (0.98 g/L), and a comparable BC yield (0.87 g/L) also can be obtained from the juice. The structural properties of BC from the lignocellulosic parts were similar to those from the d-glucose medium. The tensile strength of BC obtained from the stalk and leaf was 8.24 MPa and 4.83 MPa, respectively, which was superior to that of the glucose medium (2.07 MPa). Considering the huge biomass yield of sweet sorghum, the present work broadens the “energy crop” sweet sorghum as a “material crop” towards a new biorefinery concept for material building blocks.



中文翻译:

充分利用甜高粱来生产细菌纤维素:物质作物的概念

在这项工作中,甜高粱[ Sorghum bicolor(L.)Moench ]的整个生物量,包括富含糖的汁液和木质纤维素部分(根,茎和叶),都作为细菌纤维素(BC)的碳源进行了单独研究。生产。果汁部分直接使用,木质纤维素部分用PHP(磷酸加过氧化氢)预处理,得到可发酵的糖,用于生产BC。结果表明,从根(2.28克/升),茎(1.82克/升),和叶(2.54克/升)的BC产量比商用1.86-2.59倍d还可以从果汁中获得-葡萄糖培养基(0.98 g / L)和相当的BC产量(0.87 g / L)。来自木质纤维素部分的BC的结构性质类似于来自d-葡萄糖培养基的那些。从茎和叶获得的BC的抗张强度分别为8.24 MPa和4.83 MPa,优于葡萄糖培养基(2.07 MPa)。考虑到甜高粱的巨大生物量产量,目前的工作将“能源作物”甜高粱作为“原料作物”扩展到了一种新的生物炼制概念,作为原料的基本组成部分。

更新日期:2021-01-16
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