Dual roles of anion exchange resin in green lignocellulose biorefinery system based on self-providing acid pretreatment.

Yang Lv, Haijiong Lu, Alfred Elikem Kwami Afedzi, Ikram Ul Haq, Yong Xu

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Article in Bioprocess and biosystems engineering, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 authors.

Yang LvJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, 210037, People's Republic of China.

Haijiong LuJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, 210037, People's Republic of China.

Alfred Elikem Kwami AfedziJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, 210037, People's Republic of China.

Ikram Ul HaqInstitute of Industrial Biotechnology, GC University, Lahore, 54000, Pakistan.

Yong XuJiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, No. 159 Longpan Road, Nanjing, 210037, People's Republic of China. xuyong@njfu.edu.cn.

Funding

National Key R&D Program of China 2022YFD1300903National Natural Science Foundation of China 32171730, 32211530071Postgraduate Research & Practice Innovation Program of Jiangsu Province KYCX24_1280

6 · The paper itself

Abstract

Resting cell-catalyzed xylonic acid (XA) offers a promising strategy for developing an efficient lignocellulose biorefinery that relies on a systematic self-providing acid pretreatment. Xylo-oligosaccharides, XA, and glucose are co-produced from hemicellulose and cellulose components through a combination of XA pretreatment corncob, resting cell catalysis of xylose, and enzymatic hydrolysis of cellulose. However, the inevitable formation of degraded inhibitors and XA can synergistically impede biological processes during XA recycling and pretreatment. An anion exchange resin serves a dual function role, acting as an intelligent regulator of inhibitors and XA in the resting cell catalysis of pretreated hydrolysates, and efficiently facilitating the centrifugal separation and recycling of bacterial cells for xylose conversion to XA. After five consecutive rounds of co-recovery of the resin and bacterial cells, 91.6% of the bacteria remained viable, and the xylose conversion to XA yield reached 82.2%.

Indexed as

Anion Exchange ResinsLigninHydrolysisXyloseAnion Exchange ResinsLigninlignocelluloseXyloseCorncob polysaccharides biorefineryDual function of resinRecovery of bacterial cellsResting cell catalysis of xylose to xylonic acidSystematic self-providing xylonic acid pretreatment

Identifiers

PMID40244461

DOI10.1016/j.biortech.2022.127998

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