期刊
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
卷 36, 期 1, 页码 131-141出版社
BRAZILIAN SOC CHEMICAL ENG
DOI: 10.1590/0104-6632.20190361s20180093
关键词
Crystallinity index; Sugar cane; Organosolv pretreatment; Enzymatic hydrolysis
资金
- Ministry of Agriculture and Rural Development [2007-3719-346-07]
- Universidad del Valle
- Zuliano Institute of Technology Research INZIT
- Swiss Cooperation Agencies through the project: EPFL DDC 2009-2012 SCIENTIFIC COOPERATION FUND
- Universidad Autonoma de Occidente (Laboratory of BioProcess)
This research evaluated the effect of different delignification pretreatments (enzymatic and organosolv), on the crystallinity and enzymatic hydrolysis of harvested sugar cane residues. The Crystallinity Index (CrI), the Relative Number of Intensity (Ir), the degree of cellulose mercerization (IIC-%), and the Global Index of Saccharification (GIS) were used as measurement parameters for six different substrates obtained from sugar cane residues (tops and leaves) by different processes. In this characterization, the spectroscopic ty Techniques of Fourier Transform infrared spectroscopy (FTIR), X-ray diffraction and scanning cElectron microscopy (SEM) were used. Substrates to which only organosolv pretreatment was applied, without any further treatment, presented good behavior for the enzymatic hydrolysis and a high CrI, possibly due to the increase of the crystallinity by elimination of amorphous material.
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