The Effect of Ionic Liquid Pretreatment on the Bioconversion of Tomato Processing Waste to Fermentable Sugars and Biogas
| Autor: | Nardrapee Karuna, Tina Jeoh, Christopher W. Simmons, Brittany J. Allison, Juan Canales Cádiz |
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| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Bioconversion 020209 energy Ionic Liquids Biomass Lignocellulosic biomass Bioengineering 02 engineering and technology Lignin 01 natural sciences Applied Microbiology and Biotechnology Biochemistry Cellulase Solanum lycopersicum 010608 biotechnology Enzymatic hydrolysis 0202 electrical engineering electronic engineering information engineering Food science Medical Waste Disposal Molecular Biology Chemistry business.industry Hydrolysis Monosaccharides fungi Temperature Pomace food and beverages General Medicine Biotechnology Anaerobic digestion Tomato pomace Biofuel Biofuels Fermentation business |
| Zdroj: | Applied Biochemistry and Biotechnology. 179:1227-1247 |
| ISSN: | 1559-0291 0273-2289 |
| DOI: | 10.1007/s12010-016-2061-4 |
| Popis: | Tomato pomace is an abundant lignocellulosic waste stream from industrial tomato processing and therefore a potential feedstock for production of renewable biofuels. However, little research has been conducted to determine if pretreatment can enhance release of fermentable sugars from tomato pomace. Ionic liquids (ILs) are an emerging pretreatment technology for lignocellulosic biomass to increase enzymatic digestibility and biofuel yield while utilizing recyclable chemicals with low toxicity. In this study, pretreatment of tomato pomace with the ionic liquid 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) was investigated. Changes in pomace enzymatic digestibility were affected by pretreatment time and temperature. Certain pretreatment conditions significantly improved reducing sugar yield and hydrolysis time compared to untreated pomace. Compositional analyses suggested that pretreatment primarily removed water-soluble compounds and enriched for lignocellulose in pomace, with only subtle changes to the composition of the lignocellulose. While tomato pomace was effectively pretreated with [C2mim][OAc] to improve enzymatic digestibility, as of yet, unknown factors in the pomace caused ionic liquid pretreatment to negatively affect anaerobic digestion of pretreated material. This result, which is unique compared to similar studies on IL pretreatment of grasses and woody biomass, highlights the need for additional research to determine how the unique chemical composition of tomato pomace and other lignocellulosic fruit residues may interact with ionic liquids to generate inhibitors for downstream fermentation to biofuels. |
| Databáze: | OpenAIRE |
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