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Ethanol/water pulp enzymatic pretreatment: Chemical and FTIR-PCA analyses
Ruzene, D. S. and Gonçalves, A. R. Ethanol/water pulp enzymatic pretreatment: Chemical and FTIR-PCA analyses Chemical Papers, Vol.61, No. 6, 2007, 472-476
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Ruzene, D. S.
Gonçalves, A. R.
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| Title |
Ethanol/water pulp enzymatic pretreatment: Chemical and FTIR-PCA analyses
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
6
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| ISSN |
0366-6352
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| Start page |
472
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| End page |
476
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
270000 Biological Sciences
270800 Biotechnology
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| Abstract/Summary |
Pulps obtained from ethanol/water cooking of sugarcane bagasse were treated at different times using xylanase enzyme obtained from Thermomyces lanuginosus IOC-4145 or commercially (Cartazyme HS, Sandoz Products Ltd.). The enzyme dosage was 18 IU per g of dry pulp and the time varied from 4 h to 12 h. When xylanase from T. lanuginosus was used, the kappa number and viscosity improved independently of the processing time used (4 h, 8 h, and 12 h). After chemical evaluation, the obtained pulps were classified using Fourier Transformed Infra-Red Spectroscopy and Principal Component Analysis. The results showed that the first three principal components explained more than 90 % of the total variance of the pulp spectra.
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