Elucidating the inhibiting mechanism of pseudo-lignin on the enzymatic digestibility of cellulose by surface plasmon resonance
Bioresource Technology, ISSN: 0960-8524, Vol: 370, Page: 128510
2023
- 17Citations
- 14Captures
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Article Description
To explore the interaction mechanism of pseudo-lignin (PL) with cellulase and its influence on cellulose hydrolysis, different PLs were extracted from pretreated bamboo holocellulose (HC) using different organic solvents. Meanwhile, the real-time interaction of PL and cellulase was analyzed using surface plasmon resonance (SPR). The results showed that the extraction effect of the tetrahydrofuran and 1, 4-dioxane/water solution on PL was more effective than the ethanol/water solution. The inhibition of PL fraction obtained from HC by acid pretreatment with higher temperature showed less effect on Avicel’s enzymatic hydrolysis. SPR analysis revealed that PL formed at higher pretreatment temperature had a lower dissociation rate after adsorption with cellulase. Besides, the binding affinity of PL (160 °C) to cellulase was much greater than that of PL obtained from 180 °C, indicating PL extracted at higher temperature treated biomass is more easily dissociated from cellulase after binding.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0960852422018430; http://dx.doi.org/10.1016/j.biortech.2022.128510; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85145564548&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/36538959; https://linkinghub.elsevier.com/retrieve/pii/S0960852422018430; https://dx.doi.org/10.1016/j.biortech.2022.128510
Elsevier BV
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