Simulation and optimization of combined acid pretreatment and enzymatic saccharification of medical cotton waste

被引：8

作者：

Giakoumakis, Georgios ^{[1
]}

Karnaouri, Anthi ^{[2
]}

Topakas, Evangelos ^{[2
]}

Sidiras, Dimitrios ^{[1
]}

机构：

[1] Univ Piraeus, Sch Maritime & Ind Studies, Dept Ind Management & Technol, Lab Simulat Ind Proc, 80 Karaoli & Dimitriou, GR-18534 Piraeus, Greece

[2] Natl Tech Univ Athens, Sch Chem Engn, Ind Biotechnol & Biocatalysis Grp, Biotechnol Lab, 9 Iroon Polytech,Str,Zografou Campus, Athens 15780, Greece

来源：

BIOMASS CONVERSION AND BIOREFINERY | 2021年 / 11卷 / 02期

关键词：

Dilute acid pretreatment; Medical cotton waste; Enzymatic hydrolysis; Experimental design; HYDROLYSIS; CELLULOSE; LIGNOCELLULOSICS; DETOXIFICATION; FERMENTATION; MANAGEMENT; CONVERSION; GLUCOSE; BATCH;

D O I：

10.1007/s13399-020-00694-1

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The purpose of the present study was to develop an efficient, cost-effective process towards the valorization of medical cotton waste (MCW). Application of dilute acid pretreatment as an initial step partially degrades the cotton cellulosic fibers rendering the material more amenable to enzymatic hydrolysis towards the production of glucose. MCW was treated with sulfuric acid, in a batch autoclave, at various temperature conditions. An experimental design was set up and applied to study cotton's behavior to acid hydrolysis. The pretreatment process variables included temperature, time, and sulfuric acid concentration targeting maximal cellulose recovery and enzymatic saccharification yields. The results showed a maximum cellulose conversion to glucose of 95.6% wt. after pretreatment at 220 degrees C with 22.5 mM acid concentration. To the best of our knowledge, this is the first report in the literature suggesting a treatment process for the utilization of MCW as a source of fermentable sugars.

引用

页码：515 / 526

页数：12

共 46 条

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