High-pressure technology for Sargassum spp biomass pretreatment and fractionation in the third generation of bioethanol production

被引：73

作者：

Aparicio, E. ^{[1
]}

Rodriguez-Jasso, Rosa M. ^{[1
]}

Pinales-Marquez, Cesar D. ^{[1
]}

Loredo-Trevino, Araceli ^{[1
]}

Robledo-Olivo, Armando ^{[2
]}

Aguilar, Cristobal N. ^{[1
]}

Kostas, Emily T. ^{[3
]}

Ruiz, Hector A. ^{[1
]}

机构：

[1] Autonomous Univ Coahuila, Fac Chem Sci, Food Res Dept, Biorefinery Grp, Saltillo 25280, Coahuila, Mexico

[2] Univ Autonoma Agr Antonio Narro, Food Sci & Technol Dept, Unidad Saltillo, Blvd Antonio Narro 1923, Saltillo 25315, Coahuila, Mexico

[3] UCL, Adv Ctr Biochem Engn, Dept Biochem Engn, Bernard Katz Bldg,Gower St, London WC1H 6BT, England

来源：

BIORESOURCE TECHNOLOGY | 2021年 / 329卷

基金：

英国生物技术与生命科学研究理事会;

关键词：

Seaweed; Macroalgae; Severity factor; Biofuels; Hydrothermal processing;

D O I：

10.1016/j.biortech.2021.124935

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Sargassum spp is an invasive macroalgae and an alternative feedstock for bioethanol production. Sargassum spp biomass was subjected to high-pressure technology for biomass fractionation under different operating conditions of temperature and residence time to obtain glucan enriched pretreated solids (32.22 g/100 g of raw material). Enzyme hydrolysis process at high pretreated solid loading (13%, w/v) and enzyme loading of 10 FPU/g of glucan was performed, obtaining 43.01 g/L of glucose corresponding to a conversion yield of 92.12%. Finally, a pre-simultaneous saccharification and fermentation strategy (PSSF) was performed to produce bioethanol. This operational strategy produced 45.66 g/L of glucose in the pre-saccharification stage, and 18.14 g/L of bioethanol was produced with a glucose to bioethanol conversion yield of 76.23%. The development of this process highlights the feasibility of bioethanol production from macroalgal biomass in the biorefinery concept.

引用

页数：10

共 50 条

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