alexa Comparative Response and Structural Characterization of Sugarcane Bagasse, Straw and Bagasse-Straw 1:1 Mixtures Subjected to Hydrothermal Pretreatment and Enzymatic Conversion | Abstract
ISSN: 1948-5948

Journal of Microbial & Biochemical Technology
Open Access

Like us on:

OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

Research Article

Comparative Response and Structural Characterization of Sugarcane Bagasse, Straw and Bagasse-Straw 1:1 Mixtures Subjected to Hydrothermal Pretreatment and Enzymatic Conversion

Rondinele de Oliveira Moutta1,2, Maria Cristina Silva1, Roberta Cristina Novaes Reis Corrales1, Maria Alice Santos Cerullo2, Viridiana Santana Ferreira-Leitão1,3* and Elba Pinto da Silva Bon2

1Biocatalysis Laboratory, Catalysis Division, National Institute of Technology, Ministry of Science and Technology (INT/MCT), 20081-312, Rio de Janeiro, RJ, Brazil

2Enzyme Technology Laboratory, Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), 21941-909, Rio de Janeiro, Brazil

3Post-graduate Program in Biochemistry, Department of Biochemistry, Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), 21941-909, Rio de Janeiro, Brazil

*Corresponding Author:
Viridiana Santana Ferreira-Leitão
National Institute of Technology-Ministry of Science
Technology and Innovation Catalysis Division-Biocatalysis Laboratory
Av. Venezuela 82/302, CEP 20081-312, Rio de Janeiro, RJ, Brazil
Tel: + (55)21-2123-1108
Fax: + (55)21-2123-1166
E-mail: [email protected]

Received date: April 03, 2013; Accepted date: May 03, 2013; Published date: May 06, 2013

Citation: de Oliveira Moutta R, Silva MC, Reis Corrales RCN, Santos Cerullo MA, Ferreira-Leitão VS, et al. (2013) Comparative Response and Structural Characterization of Sugarcane Bagasse, Straw and Bagasse-Straw 1:1 Mixtures Subjected To Hydrothermal Pretreatment and Enzymatic Conversion. J Microb Biochem Technol S12:005. doi: 10.4172/1948-5948.S12-005

Copyright: © 2013 de Oliveira Moutta R, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

The change of manually harvested sugarcane, after crop burning, to mechanically harvest green cane allows straw and bagasse to be available for further processing via either chemical or biochemical routes, which increases the sector’s energy efficiency. In this study, sugarcane bagasse, straw and a bagasse-straw 1:1 mixture were subjected, under comparative conditions, to hydrothermal pretreatment at 195°C for 10 minutes and to enzymatic conversion. We evaluated the individual responses of the three different materials regarding the effect of the pretreatment on hemicellulose and lignin extraction, the formation of furfural and hydroxymethylfurfural and cellulose enzymatic digestibility. The morphological, chemical and physical properties of the raw and pretreated materials were analyzed by Scanning Electron Microscopy (SEM), infrared spectroscopy (FTIR) and X-ray Diffraction (XRD). We observed a higher hemicellulose extraction from straw (93.3%) in comparison to bagasse (83.7%), and the hemicellulose extract that was obtained from straw contained a higher concentration of inhibitors. Intermediate values for hemicellulose extraction (88.5%) and inhibitor formation were observed for the bagasse-straw 1:1 mixture. The cellulose enzymatic hydrolysis yield was higher for straw (90.5%) in comparison to bagasse (68.2%), whereas an intermediate yield of 73.3% was observed for the mixture. According to the SEM images, the pretreatment altered the native biomass at the level of the structure of the cell wall, and consequently, the arrangement of the macromolecular components of the cell wall was closely related to the high degree of hemicellulose removal. FTIR data indicated chemical changes mostly in OH, OCH3 and C=O groups; these changes were most noticeable in the pretreated straw. Adjusted data for the crystallinity index suggested that the pretreated materials had decreased crystallinity. All of the results showed that straw had a lower recalcitrance.

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2018-19
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

+1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]om

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2018 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
Leave Your Message 24x7