Ferric chloride aided peracetic acid pretreatment for effective utilization of sugarcane bagasse
Ferric chloride aided peracetic acid pretreatment for effective utilization of sugarcane bagasse
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DOI：
10.1016/j.fuel.2022.123739
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发表时间：
2022
期刊：
影响因子：
7.4
通讯作者：
Jingshun Zhuang;Kwang Ho Kim;Linjing Jia;Xianzhi Meng;Deepak Kumar;Gyu Leem;Sung Bong Kang;You-ming Li;Arthur J. Ragauskas;Y. Hou;C. Yoo
中科院分区：
文献类型：
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作者：
Jingshun Zhuang;Kwang Ho Kim;Linjing Jia;Xianzhi Meng;Deepak Kumar;Gyu Leem;Sung Bong Kang;You-ming Li;Arthur J. Ragauskas;Y. Hou;C. Yoo
研究了氯化铁辅助过氧乙酸（FPA）预处理的协同效应，通过有效的纤维素转化和高质量的木质素生产，提高生物质的总利用率。在温和温度（90 °C）下，用2%过氧乙酸（PAA）和0.1mol/L氯化铁（FeCl 3）预处理甘蔗渣，可有效去除57.3%的木质素和72.2%的木聚糖，同时保留97%的纤维素。FPA预处理的甘蔗渣被有效地水解，葡萄糖产量为313.0 mg/g-生物质，这是4.5倍，比单独PAA和FeCl 3预处理的甘蔗渣的产量（69.75 mg/g-生物质）分别高1.6和3.6倍。再生木质素（FPA木质素）由于反应条件温和，保留了主要的单元间键（高达86%的β-O-4），没有明显的碳水化合物污染和木质素缩合，显示出很大的潜在价值。PAA和FeCl 3协同作用提高了甘蔗渣的预处理效率，提高了可发酵糖和木质素的产量。
The synergetic impacts of ferric chloride aided peracetic acid (FPA) pretreatment were investigated to enhance the total biomass utilization through effective cellulose conversion and high-quality lignin production. The sugarcane bagasse pretreatment with 2% peracetic acid (PAA) and 0.1 mol/L ferric chloride (FeCl3) effectively removed 57.3% of lignin and 72.2% of xylan while preserving ∼ 97% of cellulose from sugarcane bagasse under mild temperature (90 °C). The FPA pretreated sugarcane bagasse was effectively hydrolyzed with a glucose yield of 313.0 mg/g-biomass, which was 4.5 times higher than the yield of untreated biomass (69.75 mg/g-biomass) and 1.6 and 3.6 times higher than that of individual PAA and FeCl3pretreated sugarcane bagasse, respectively. The regenerated lignin (FPA lignin) showed great potential for further valorization by preserving the major interunit linkage (up to 86% of β-O-4) without significant carbohydrate contamination and lignin condensation due to its mild reaction conditions. In this study, the combination of PAA and FeCl3synergistically enhanced the pretreatment efficiency on sugarcane bagasse and resulted in high fermentable sugar and high-quality lignin production.