Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, PR China.
Bioresour Technol. 2023 Jul;380:129090. doi: 10.1016/j.biortech.2023.129090. Epub 2023 Apr 25.
In this work, a rapid one-pot hydrated deep eutectic solvent (DES) pretreatment was proposed to facilitate the conversion of carbohydrates from lignocellulosic biomass to monosaccharides. Specifically, the pure and hydrated DES based on benzyl triethylammonium chloride (BTEAC), formic acid (FA) and water was used to pretreat bamboo shoot shells (BSS) by microwave heating. The pretreated solid residues were enzymatically saccharified to produce fermentable sugars, and the hydrolyzed carbohydrates and lignin remained in the hydrolyzate. The results showed that the yield of monosaccharides from the hydrated DES hydrolyzate (193.7-228.4 g/kg) was significantly higher than that (45.9-66.1 g/kg) of pure DES. The 30% hydrated DES pretreatment achieved the best glucose yield (89.03%) and a total monosaccharides yield of 555.4 g/kg, which corresponded to a conversion ratio of carbohydrates to monosaccharides of 87.0%. The proposed process is a robust method for the efficiently convert carbohydrates from BSS into monosaccharides.
在这项工作中，提出了一种快速的一锅水合深共晶溶剂 (DES) 预处理方法，以促进木质纤维素生物质中碳水化合物向单糖的转化。具体而言，使用基于苄基三乙基氯化铵 (BTEAC)、甲酸 (FA) 和水的纯净和水合 DES 通过微波加热预处理竹笋壳 (BSS)。预处理后的固体残渣进行酶解以产生可发酵糖，水解产生的碳水化合物和木质素残留在水解物中。结果表明，水合 DES 水解物中单糖的产率（193.7-228.4 g/kg）明显高于纯 DES 的产率（45.9-66.1 g/kg）。30%水合 DES 预处理获得了最高的葡萄糖产率（89.03%）和 555.4 g/kg 的总单糖产率，对应于碳水化合物到单糖的转化率为 87.0%。所提出的工艺是一种从 BSS 中高效转化碳水化合物为单糖的稳健方法。
