Lactic acid production by alkaline hydrothermal treatment of corn cobs

被引：71

作者：

Sanchez, Cristina ^{[1
]}

Eguees, Itziar ^{[1
]}

Garcia, Araceli ^{[1
]}

Llano-Ponte, Rodrigo ^{[1
]}

Labidi, Jalel ^{[1
]}

机构：

[1] Univ Basque Country, Chem & Environm Engn Dept, Donostia San Sebastian 20018, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2012年 / 181卷

关键词：

Corn cobs; Thermal conversion; Catalyst; Lactic acid; SUBCRITICAL WATER; CONVERSION; BIOMASS; FERMENTATION; CELLULOSE; SACCHARIFICATION; HYDROLYSIS; OXIDATION; RECOVERY; RESIDUES;

D O I：

10.1016/j.cej.2011.12.033

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An experimental study was carried out for the corn cobs thermal conversion to obtain the maximum content in lactic acid. For this purpose, under the same conditions (275 degrees C and 30 min) different concentrations of Ca(OH)(2) as alkaline catalyst were used (from 0.32 M to 1 M). The maximum content of lactic acid (6.72 +/- 0.31 g/L) was obtained with 0.7 M of Ca(OH)(2). With this catalyst concentration, different reaction conditions were used (250, 275 and 300 degrees C and 15,30 and 45 min). The optimal conditions to produce the highest yield of lactic acid from corn cobs in alkaline conditions were determined at 300 degrees C and 30 min, achieving 44.76 +/- 2.59% respect to the total cellulose and hemicellulose contained in the initial corn cobs (7.38 +/- 0.43 g/L of lactic acid). (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：655 / 660

页数：6

共 36 条

[11] Cellulose and collagen: from fibres to tissues [J].

Fratzl, P .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2003, 8 (01) :32-39

[12] Study of the antioxidant capacity of Miscanthus sinensis lignins [J].

Garcia, Araceli ;

Toledano, Ana ;

Angeles Andres, Maria ;

Labidi, Jalel .

PROCESS BIOCHEMISTRY, 2010, 45 (06) :935-940

[13] Generation of xylose solutions from Eucalyptus globulus wood by auto hydrolysis-posthydrolysis processes:: Posthydrolysis kinetics [J].

Garrote, G ;

Dominguez, H ;

Parajó, JC .

BIORESOURCE TECHNOLOGY, 2001, 79 (02) :155-164

[14] Autohydrolysis of agricultural residues:: Study of reaction byproducts [J].

Garrote, Gil ;

Falque, Elena ;

Dominguez, Herminia ;

Parajo, Juan Carlos .

BIORESOURCE TECHNOLOGY, 2007, 98 (10) :1951-1957

[15]

Glasser W. G., 1995, U. S. Patent, Patent No. [5430142, 5,430,142]

[16] Agricultural palm oil tree residues as raw material for cellulose, lignin and hemicelluloses production by ethylene glycol pulping process [J].

Gonzalez Alriols, M. ;

Tejado, A. ;

Blanco, M. ;

Mondragon, I. ;

Labidi, J. .

CHEMICAL ENGINEERING JOURNAL, 2009, 148 (01) :106-114

[17] Application of hydrothermal reaction in resource recovery of organic wastes [J].

He, Wenzhi ;

Li, Guangming ;

Kong, Lingzhao ;

Wang, Hua ;

Huang, Juwen ;

Xu, Jingcheng .

RESOURCES CONSERVATION AND RECYCLING, 2008, 52 (05) :691-699

[18] Simultaneous enzymatic wheat starch saccharification and fermentation to lactic acid by Lactococcus lactis [J].

Hofvendahl, K ;

Åkerberg, C ;

Zacchi, G ;

Hahn-Hägerdal, B .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 1999, 52 (02) :163-169

[19] Conversion mechanism of cellulosic biomass to lactic acid in subcritical water and acid-base catalytic effect of subcritical water [J].

Jin, FM ;

Zhou, ZY ;

Enomoto, H ;

Moriya, T ;

Higashijima, H .

CHEMISTRY LETTERS, 2004, 33 (02) :126-127

[20]

Kim YH, 2001, J CHEM TECHNOL BIOT, V76, P169, DOI 10.1002/jctb.368

← 1 2 3 4 →