Continuous ultrasonic-mediated solvent extraction of lactic acid from fermentation broths
| Autor: | Carol Sze Ki Lin, Tsz Him Kwan, Yunzi Hu, Walid A. Daoud |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Chromatography
010405 organic chemistry Renewable Energy Sustainability and the Environment Chemistry Strategy and Management Sonication Extraction (chemistry) Ethyl acetate 010501 environmental sciences 01 natural sciences Industrial and Manufacturing Engineering Hydrolysate 0104 chemical sciences Lactic acid Solvent chemistry.chemical_compound Fermentation Amine gas treating 0105 earth and related environmental sciences General Environmental Science |
| Zdroj: | Journal of Cleaner Production. 145:142-150 |
| ISSN: | 0959-6526 |
| DOI: | 10.1016/j.jclepro.2017.01.055 |
| Popis: | A novel method of lactic acid recovery from fermentation broths by continuous ultrasonic solvent extraction is disclosed in this study. Fermentation broths from defined medium, mixed food waste hydrolysate and bakery waste hydrolysate were employed. Ultrasonication was applied to improve the extraction efficiency combined with ethyl acetate optimum solvent to replace conventional amine-based complex systems. The optimization process was performed by investigation of various conditions, in which initial lactic acid concentration range of 350–400 g L −1 extracted into ethyl acetate (1:2 v/v) by sonication at pH 2 under room temperature was suggested. Lactic acid was successfully recovered with a concentration of 400–500 g L −1 , at overall yields of 82–84%, and purity around 98%, showing the high effectiveness of this new method. The simple and effective recycling of the solvent confirms the method in a green and sustainable manner. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect