Optimization of acid pretreatment in order to increase the phenolic content of Picea abies bark by surface response methodology

被引：0
作者：
机构：
[1] Université de Lorraine, Laboratoire d'Etudes et de Recherche sur le Matériau Bois (LERMAB), Nancy, EA 4370
[2] ENSTIB, 88051 EPINAL Cedex 9, 27 rue Philippe Séguin
[3] Faculté des Sciences et Technologies, 54506 Vandœuvre les Nancy
[4] Centre de ressources pour les industries du bois (CRITT Bois), EPINAL cedex 9, 27 rue Philippe Séguin
来源：
Duret, X. (rhodanis@wanadoo.fr) | 1600年 / North Carolina State University卷 / 08期
关键词：
Acid hydrolysis; Bark; Norway spruce; Phenolic content optimization; Response surface methodology;
D O I：
10.15376/biores.8.1.1258-1273
中图分类号：
学科分类号：
摘要：
The purpose of this work was to determine the main factors influencing the phenolic content of bark during acid hydrolysis. The optimization of polysaccharides hydrolysis was done by response surface methodology. The hydrolysis was performed under atmospheric pressure in an aqueous solution of sulfuric acid. An experimental design was applied to analyze the effects of the reaction time (5 to 24 hours), acid concentration (3 to 20%), and solid/liquid ratio (1/10 to 1/5) on the weight loss, lignin content, holocellulose content, and sugar yield for the hydrolysis. The pretreated bark had a high lignin content of 60% resulting from hemicelluloses hydrolysis and phenolic compound condensation.
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页码：1258 / 1273
页数：15
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