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Yufeng Yuan, Xinyu Guo, Bo Jiang, Wenjuan Wu, Tingwei Zhang, Michael Sweeney, Mehraj Ahmad, Yongcan Jin. Effect of various aromatic compounds with different functional groups on enzymatic hydrolysis of microcrystalline cellulose and alkaline pretreated wheat straw[J]. Journal of Bioresources and Bioproducts. doi: 10.1016/j.jobab.2023.12.006
Citation: Yufeng Yuan, Xinyu Guo, Bo Jiang, Wenjuan Wu, Tingwei Zhang, Michael Sweeney, Mehraj Ahmad, Yongcan Jin. Effect of various aromatic compounds with different functional groups on enzymatic hydrolysis of microcrystalline cellulose and alkaline pretreated wheat straw[J]. Journal of Bioresources and Bioproducts. doi: 10.1016/j.jobab.2023.12.006

Effect of various aromatic compounds with different functional groups on enzymatic hydrolysis of microcrystalline cellulose and alkaline pretreated wheat straw

doi: 10.1016/j.jobab.2023.12.006

Authors are thankful to National Natural Science Foundation of China (No. 31730106

No. 21704045) and Jiangsu Provincial Key Research and Development Program, China (No. BE2021368) for supporting the work.

  • Available Online: 2024-01-31
  • Low molecular aromatic compounds are detrimental to the enzymatic hydrolysis of lignocellulose. However, the specific role of their functional groups remains unclear. Here, a series of nine aromatic compounds as additives were tested to understand their effect on the hydrolysis yield of microcrystalline cellulose (MCC) and alkaline pretreated wheat straw. Based on the results, the inhibition of aldehyde groups on MCC was greater than that of carboxyl groups, whereas for the alkaline pretreated wheat straw case, the inhibitory effect of aldehyde groups was lower than that of carboxyl groups. Increased methoxyl groups of aromatic compounds reduced the inhibitory effect on enzymatic hydrolysis of both substrates. Stronger inhibition of aromatic compounds on MCC hydrolysis was detected in comparison with the alkaline pretreated wheat straw, indicating that the substrate lignin can offset the inhibition to a certain extent. Among all aromatic compounds, syringaldehyde with one aldehyde group and two methoxyl groups improved the glucan conversion of the alkaline pretreated wheat straw.


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