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송윤호Younho Song

전남대학교

Bioresour. Technol., 2023 Mar;372:128694 | https://doi.org/10.1016/j.biortech.2023.128694 Utilization of bamboo as biorefinery feedstock: Co-production of xylo-oligosaccharide with succinic acid and lactic acid

Younho Song ^a, Yoon Gyo Lee ^a, Young Sang Ahn ^b, Dinh-Truong Nguyen ^c, Hyeun-Jong Bae ^a

^aBio-energy Research Center, Chonnam National University, Gwangju 500-757, Republic of Korea
^bDepartment of Forest Resources, Chonnam National University, Gwangju 500-757, Republic of Korea
^cSchool of Biotechology, Tan Tao University, Long An 82000, Viet Nam

Corresponding author: Hyeun-Jong Bae

Abstract

Herein, we investigated the possibility of co-producing xylo-oligosaccharides (XOSs) from bamboo, as value-added products, along with succinic and lactic acids, as platform chemicals. Xylan was extracted from bamboo using the alkali method under mild conditions. From xylan, XOSs were produced by partial enzymatic hydrolysis at a conversion rate of 83.9%, and all reaction conditions resulted in similar degrees of polymerization. Hydrogen peroxide-acetic acid (HPAC) pretreatment effectively removed lignin from NaOH-treated bamboo, and the enzymatic hydrolytic yield of NaOH and HPAC-treated bamboo was 84.3% of the theoretical yield. The production of succinic and lactic acids from the hydrolysate resulted in conversion rates of approximately 63.2% and 91.3% of the theoretical yield using Corynebacterium glutamicum Δldh and Actinobacillus succinogenes, respectively, under facultative anaerobic conditions. This study demonstrates that bamboo has a high potential to produce value-added products using a biorefinery process and is an alternative resource for compounds typically derived from petroleum.

논문정보

형식Research article
게재일2023년 03월 (BRIC 등록일 2023-08-22)
연구진국내(교신)+국외 연구진
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