Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase
Oil palm mesocarp fiber was subjected to hydrothermal pretreatment under isothermal and non-isothermal conditions. The pretreated slurries were separated by filtration, pretreated liquids and solids were characterized. An enzymatic digestibility study was performed for both pretreated slurries and s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/28095/1/Soluble%20inhibitors%20generated%20during%20hydrothermal%20pretreatment%20of%20oil%20palm%20mesocarp%20fiber%20suppressed%20the%20catalytic%20activity%20of%20Acremonium%20cellulase.pdf |
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| author | Zakaria @ Mamat, Mohd Rafein Hirata, Satoshi Fujimoto, Shinji Ibrahim, Izzudin Hassan, Mohd Ali |
| author_facet | Zakaria @ Mamat, Mohd Rafein Hirata, Satoshi Fujimoto, Shinji Ibrahim, Izzudin Hassan, Mohd Ali |
| author_sort | Zakaria @ Mamat, Mohd Rafein |
| collection | UPM |
| description | Oil palm mesocarp fiber was subjected to hydrothermal pretreatment under isothermal and non-isothermal conditions. The pretreated slurries were separated by filtration, pretreated liquids and solids were characterized. An enzymatic digestibility study was performed for both pretreated slurries and solids to understand the effect of soluble inhibitors generated during the pretreatment process. The highest glucose yield obtained from pretreated slurries was 70.1%, and gradually decreased with higher pretreatment severities. The highest glucose yield obtained in pretreated solids was 100%, after pretreatment at 210 °C for 20 min. In order to study the inhibitory effects of compounds generated during pretreatment with cellulase, technical grade solutions that mimic the pretreated liquid were prepared and their effect on Acremonium cellulase activity was monitored using Avicel. Xylo-oligomers and tannic acid were identified as powerful inhibitors of Acremonium cellulase, and the lowest hydrolysis rate of Avicel of 0.18 g/g-glucose released/L/h was obtained from tannic acid. |
| first_indexed | 2024-03-06T08:10:20Z |
| format | Article |
| id | upm.eprints-28095 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:10:20Z |
| publishDate | 2016 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-280952016-06-20T06:13:24Z http://psasir.upm.edu.my/id/eprint/28095/ Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase Zakaria @ Mamat, Mohd Rafein Hirata, Satoshi Fujimoto, Shinji Ibrahim, Izzudin Hassan, Mohd Ali Oil palm mesocarp fiber was subjected to hydrothermal pretreatment under isothermal and non-isothermal conditions. The pretreated slurries were separated by filtration, pretreated liquids and solids were characterized. An enzymatic digestibility study was performed for both pretreated slurries and solids to understand the effect of soluble inhibitors generated during the pretreatment process. The highest glucose yield obtained from pretreated slurries was 70.1%, and gradually decreased with higher pretreatment severities. The highest glucose yield obtained in pretreated solids was 100%, after pretreatment at 210 °C for 20 min. In order to study the inhibitory effects of compounds generated during pretreatment with cellulase, technical grade solutions that mimic the pretreated liquid were prepared and their effect on Acremonium cellulase activity was monitored using Avicel. Xylo-oligomers and tannic acid were identified as powerful inhibitors of Acremonium cellulase, and the lowest hydrolysis rate of Avicel of 0.18 g/g-glucose released/L/h was obtained from tannic acid. Elsevier 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/28095/1/Soluble%20inhibitors%20generated%20during%20hydrothermal%20pretreatment%20of%20oil%20palm%20mesocarp%20fiber%20suppressed%20the%20catalytic%20activity%20of%20Acremonium%20cellulase.pdf Zakaria @ Mamat, Mohd Rafein and Hirata, Satoshi and Fujimoto, Shinji and Ibrahim, Izzudin and Hassan, Mohd Ali (2016) Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase. Bioresource Technology, 200. pp. 541-547. ISSN 0960-8524; ESSN: 1873-2976 http://www.sciencedirect.com/science/article/pii/S0960852415014789 10.1016/j.biortech.2015.10.075 |
| spellingShingle | Zakaria @ Mamat, Mohd Rafein Hirata, Satoshi Fujimoto, Shinji Ibrahim, Izzudin Hassan, Mohd Ali Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase |
| title | Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase |
| title_full | Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase |
| title_fullStr | Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase |
| title_full_unstemmed | Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase |
| title_short | Soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of Acremonium cellulase |
| title_sort | soluble inhibitors generated during hydrothermal pretreatment of oil palm mesocarp fiber suppressed the catalytic activity of acremonium cellulase |
| url | http://psasir.upm.edu.my/id/eprint/28095/1/Soluble%20inhibitors%20generated%20during%20hydrothermal%20pretreatment%20of%20oil%20palm%20mesocarp%20fiber%20suppressed%20the%20catalytic%20activity%20of%20Acremonium%20cellulase.pdf |
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