Enhanced Production of Bacterial Cellulose from Miscanthus as Sustainable Feedstock through Statistical Optimization of Culture Conditions

International Journal of Environmental Research and Public Health

Hah Young Yoo¹  Kang Hyun Lee¹  Taek Lee²  Jemin Son²  Chulhwan Park²  Hyun Soo Kim³  Sang-Mo Koo⁴  Jong-Min Oh⁴  Weon Ho Shin⁴  Byung Jo Yu⁵ 

[1] Department of Biotechnology, Sangmyung University, Seoul 03016, Korea;Department of Chemical Engineering, Kwangwoon University, Seoul 01897, Korea;Department of Electronic Engineering, Kwangwoon University, Seoul 01897, Korea;Department of Electronic Materials Engineering, Kwangwoon University, Seoul 01897, Korea;Research Institute of Clean Manufacturing System, Korea Institute of Industrial Technology, Cheonan 31056, Korea;

关键词: biorefinery;    optimization;    bacterial cellulose;    feedstock;    Miscanthus;    hydrolysate;   

DOI  :  10.3390/ijerph19020866

来源: DOAJ

【 摘 要 】

Biorefineries are attracting attention as an alternative to the petroleum industry to reduce carbon emissions and achieve sustainable development. In particular, because forests play an important role in potentially reducing greenhouse gas emissions to net zero, alternatives to cellulose produced by plants are required. Bacterial cellulose (BC) can prevent deforestation and has a high potential for use as a biomaterial in various industries such as food, cosmetics, and pharmaceuticals. This study aimed to improve BC production from lignocellulose, a sustainable feedstock, and to optimize the culture conditions for Gluconacetobacter xylinus using Miscanthus hydrolysates as a medium. The productivity of BC was improved using statistical optimization of the major culture parameters which were as follows: temperature, 29 °C; initial pH, 5.1; and sodium alginate concentration, 0.09% (w/v). The predicted and actual values of BC production in the optimal conditions were 14.07 g/L and 14.88 g/L, respectively, confirming that our prediction model was statistically significant. Additionally, BC production using Miscanthus hydrolysates was 1.12-fold higher than in the control group (commercial glucose). Our result indicate that lignocellulose can be used in the BC production processes in the near future.

【 授权许可】

Unknown