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Su Y, Fang L, Wang P, et al. Efficient production of xylooligosaccharides rich in xylobiose and xylotriose from poplar by hydrothermal pretreatment coupled with post-enzymatic hydrolysis. Bioresour Technol. 2021;342:125955doi: 10.1016/j.biortech.2021.125955.
Su, Y., Fang, L., Wang, P., Lai, C., Huang, C., Ling, Z., Sun, S., & Yong, Q. (2021). Efficient production of xylooligosaccharides rich in xylobiose and xylotriose from poplar by hydrothermal pretreatment coupled with post-enzymatic hydrolysis. Bioresource technology, 342125955. https://doi.org/10.1016/j.biortech.2021.125955
Su, Yan, et al. "Efficient production of xylooligosaccharides rich in xylobiose and xylotriose from poplar by hydrothermal pretreatment coupled with post-enzymatic hydrolysis." Bioresource technology vol. 342 (2021): 125955. doi: https://doi.org/10.1016/j.biortech.2021.125955
Su Y, Fang L, Wang P, Lai C, Huang C, Ling Z, Sun S, Yong Q. Efficient production of xylooligosaccharides rich in xylobiose and xylotriose from poplar by hydrothermal pretreatment coupled with post-enzymatic hydrolysis. Bioresour Technol. 2021 Dec;342:125955. doi: 10.1016/j.biortech.2021.125955. Epub 2021 Sep 15. PMID: 34547709.
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Bioresour Technol. 2021 Dec;342:125955. doi: 10.1016/j.biortech.2021.125955. Epub 2021 Sep 15.

Efficient production of xylooligosaccharides rich in xylobiose and xylotriose from poplar by hydrothermal pretreatment coupled with post-enzymatic hydrolysis.

Bioresource technology

Yan Su, Lingyan Fang, Peng Wang, Chenhuan Lai, Caoxing Huang, Zhe Ling, Shaolong Sun, Qiang Yong

Affiliations

  1. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China.
  2. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China.
  3. College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, People's Republic of China.
  4. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China. Electronic address: [email protected].

PMID: 34547709 DOI: 10.1016/j.biortech.2021.125955

Abstract

A promising approach for production of value-added xylooligosaccharides (XOS) from poplar was developed by combining hydrothermal pretreatment and endo-xylanase post-hydrolysis. Results showed that the 35.4% XOS (DP 2-6) and 17.6% low DP xylans (DP > 6) were obtained at the identified optimal condition (170 °C, 50 min) for hydrothermal pretreatment. Structural features of low DP xylans generated during the hydrothermal pretreatment were examined, revealing that low DP xylans are mainly comprised of 4-O-methylglucuronic xylan and are involved in lignin carbohydrate complexes. Moreover, higher pretreatment intensity promoted the cleavage of side-chain substituents including arabinose and glucuronic acid groups. The subsequent endo-xylanase hydrolysis of the pretreatment liquor hydrolyzed low DP xylans, contributing to a significant improvement in xylobiose and xylotriose proportions. This combined strategy resulted in a XOS with conversion yield of 44.6% containing 78.7% xylobiose and xylotriose starting from the initial xylan in raw poplar.

Copyright © 2021. Published by Elsevier Ltd.

Keywords: Hydrothermal pretreatment; Poplar; Post-enzymatic hydrolysis; Xylooligosaccharides

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