Production of xylitol from corn cob hydrolysate through acid and enzymatic hydrolysis by yeast

2nd International Conference on Biomass: Toward Sustainable Biomass Utilization for Industrial and Energy Applications

生物科学;工业技术;能源学

Mardawati, Efri^1 ; Andoyo, R.^1 ; Syukra, K.A.^1 ; Kresnowati, Mtap^2 ; Bindar, Y.^2

Departement of Agroindustrial Technology, Universitas Padjadjaran, Jatinangor

40600, Indonesia^1

Departement of Chemical Engineering, Institut Teknologi Bandung, Bandung

40132, Indonesia^2

关键词: Biorefinery process;    Corn production;    Enzymatic hydrolysates;    Hydrolysis methods;    Indonesia;    ITS applications;    Specific growth rate;    Xylitol productions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/141/1/012019/pdf
DOI  :  10.1088/1755-1315/141/1/012019

来源: IOP

【 摘 要 】

The abundance of corn production in Indonesia offers the potential for its application as the raw material for biorefinery process. The hemicellulose content in corn cobs can be considered to be used as a raw material for xylitol production. The purpose of this research was to study the effect of hydrolysis methods for xylitol production and the effect of the hydrolyzed corn cobs to produce xylitol through fermentation. Hydrolysis methods that would be evaluated were acid and enzymatic hydrolysis. The result showed that the xylitol yield of fermented solution using enzymatic hydrolysates was 0.216 g-xylitol/g-xylose, which was higher than the one that used acid hydrolysates, which was 0.100 g-xylitol/g-xylose. Moreover, the specific growth rate of biomass in fermentation using enzymatic hydrolysates was also higher than the one that used acid hydrolysates, 0.039/h compared to 0.0056/h.