Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis
In biomass pretreatment processes, both the properties of feedstock and process parameters play important roles in the yield of downstream enzymatic hydrolysis. More importantly, like many other industrial processes, the pretreatment system is multivariate and the variables in the system are inter-r...
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North Carolina State University
2014-03-01
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doaj-71049a2f0ff5417bbf59d9dc3f1cba942020-11-24T23:52:50ZengNorth Carolina State UniversityBioResources1930-21261930-21262014-03-01922757277110.15376/biores.9.2.2757-2771Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate AnalysisBin Li0Huan Liu1Huanfei Xu2Bo Pang3Hongyan Mou4Haisong Wang5Xindong Mu6Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of SciencesDalian Polytechnic UniversityQingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of SciencesQingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of SciencesÅbo Akademi UniversityQingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of SciencesQingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of SciencesIn biomass pretreatment processes, both the properties of feedstock and process parameters play important roles in the yield of downstream enzymatic hydrolysis. More importantly, like many other industrial processes, the pretreatment system is multivariate and the variables in the system are inter-related to different extents, which means that studying the relationships of the key variables is of critical importance for the improvement of downstream enzymatic saccharification yield. In this work, two multivariate analysis methods of the Principal Component Analysis (PCA) and Partial Least Square (PLS) were employed to characterize the detailed relationships of the key process variables of alkaline sulfite pretreatment of corn stover. The results showed that the total alkali charge is positively correlated with the sugar content in pretreated biomass, lignin removal efficiency, and final sugar yield; pretreatment temperature has negative impact on the recovery of polysaccharides; and total alkali charge is more influential than other pretreatment process variables (such as Na2SO3/NaOH and temperature) under the conditions studied.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_2_2757_Li_Detailed_Relationships_SulfiteMultivariate analysisAlkaline sulfite pretreatmentCorn stoverEnzymatic hydrolysis |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Bin Li Huan Liu Huanfei Xu Bo Pang Hongyan Mou Haisong Wang Xindong Mu |
spellingShingle |
Bin Li Huan Liu Huanfei Xu Bo Pang Hongyan Mou Haisong Wang Xindong Mu Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis BioResources Multivariate analysis Alkaline sulfite pretreatment Corn stover Enzymatic hydrolysis |
author_facet |
Bin Li Huan Liu Huanfei Xu Bo Pang Hongyan Mou Haisong Wang Xindong Mu |
author_sort |
Bin Li |
title |
Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis |
title_short |
Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis |
title_full |
Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis |
title_fullStr |
Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis |
title_full_unstemmed |
Characterization of the Detailed Relationships of the Key Variables in the Process of the Alkaline Sulfite Pretreatment of Corn Stover by Multivariate Analysis |
title_sort |
characterization of the detailed relationships of the key variables in the process of the alkaline sulfite pretreatment of corn stover by multivariate analysis |
publisher |
North Carolina State University |
series |
BioResources |
issn |
1930-2126 1930-2126 |
publishDate |
2014-03-01 |
description |
In biomass pretreatment processes, both the properties of feedstock and process parameters play important roles in the yield of downstream enzymatic hydrolysis. More importantly, like many other industrial processes, the pretreatment system is multivariate and the variables in the system are inter-related to different extents, which means that studying the relationships of the key variables is of critical importance for the improvement of downstream enzymatic saccharification yield. In this work, two multivariate analysis methods of the Principal Component Analysis (PCA) and Partial Least Square (PLS) were employed to characterize the detailed relationships of the key process variables of alkaline sulfite pretreatment of corn stover. The results showed that the total alkali charge is positively correlated with the sugar content in pretreated biomass, lignin removal efficiency, and final sugar yield; pretreatment temperature has negative impact on the recovery of polysaccharides; and total alkali charge is more influential than other pretreatment process variables (such as Na2SO3/NaOH and temperature) under the conditions studied. |
topic |
Multivariate analysis Alkaline sulfite pretreatment Corn stover Enzymatic hydrolysis |
url |
http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_2_2757_Li_Detailed_Relationships_Sulfite |
work_keys_str_mv |
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