Key Laboratory of Green Chemical Process of Ministry of Education, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China.
Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China.
Bioresour Technol. 2018 Oct;265:394-398. doi: 10.1016/j.biortech.2018.06.043. Epub 2018 Jun 15.
Fenton-based processes with four different iron salts in two different dosing modes were used to pretreat rice straw (RS) samples to increase their enzymatic digestibility. The composition analysis shows that the RS sample pretreated by the dosing mode of iron salt adding into HO has a much lower hemicellulose content than that pretreated by the dosing mode of HO adding into iron salt, and the RS sample pretreated by the chloride salt-based Fenton process has a much lower lignin content and a slightly lower hemicellulose content than that pretreated by the sulphate salt-based Fenton process. The higher concentration of reducing sugar observed on the RS sample with lower lignin and hemicellulose contents justifies that the Fenton-based process could enhance the enzymic hydrolysis of RS by removing hemicellulose and lignin and increasing its accessibility to cellulase. FeCl·6HO adding into HO is the most efficient Fenton-based process for RS pretreatment.
采用 4 种不同铁盐的两种不同投加方式的芬顿工艺对稻草（RS）样品进行预处理，以提高其酶解糖化率。组成分析表明，铁盐投加方式为 HO 中添加铁盐的 RS 样品比 HO 中添加铁盐的 RS 样品的半纤维素含量低得多，且基于氯化盐的芬顿工艺处理的 RS 样品的木质素和半纤维素含量比基于硫酸盐的芬顿工艺低得多。木质素和半纤维素含量较低的 RS 样品中观察到的还原糖浓度较高，这证明芬顿工艺通过去除半纤维素和木质素并增加其对纤维素酶的可及性，可增强 RS 的酶解糖化作用。FeCl·6HO 加 HO 的方式是 RS 预处理最有效的芬顿工艺。
