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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kwon, Eilhann E. Yi, Haakrho Jeon, Young Jae |
| Description | Country affiliation: South Korea Author Affiliation: Kwon EE ( Bio-Energy Research Team, Research Institute of Industrial Science and Technology (RIST), Kwang-Yang-City, Cholla-Nam-Do 540-090, South Korea.) |
| Abstract | The sequential co-production of bioethanol and biodiesel from spent coffee grounds was investigated. The direct conversion of bioethanol from spent coffee grounds was not found to be a desirable option because of the relatively slow enzymatic saccharification behavior in the presence of triglycerides and the free fatty acids (FFAs) found to exist in the raw materials. Similarly, the direct transformation of the spent coffee grounds into ethanol without first extracting lipids was not found to be a feasible alternative. However, the crude lipids extracted from the spent coffee grounds were themselves converted into fatty acid methyl ester (FAME) and fatty acid ethyl ester (FAEE) via the non-catalytic biodiesel transesterification reaction. The yields of bioethanol and biodiesel were 0.46 g g(-1) and 97.5±0.5%, which were calculated based on consumed sugar and lipids extracted from spent coffee grounds respectively. Thus, this study clearly validated our theory that spent coffee grounds could be a strong candidate for the production of bioethanol and biodiesel. |
| ISSN | 09608524 |
| Volume Number | 136 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2013-05-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Biofuels Coffee Chemistry Ethanol Metabolism Waste Products Analysis Carbohydrate Metabolism Carbohydrates Biosynthesis Catalysis Esterification Esters Fermentation Glucose Hydrolysis Lipids Saccharomyces Cerevisiae Temperature Thermogravimetry Journal Article Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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