Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques
Actually, there is a growing interest in the biotechnological production of lactic acid by fermentation aiming to substitute fossil fuel routes. The development of an efficient method for its separation and purification from fermentation broth is very important to assure the economic viability of pr...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2017/4149592 |
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| _version_ | 1849414340004806656 |
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| author | Andrea Komesu Patricia Fazzio Martins Martinez Betânia Hoss Lunelli Johnatt Oliveira Maria Regina Wolf Maciel Rubens Maciel Filho |
| author_facet | Andrea Komesu Patricia Fazzio Martins Martinez Betânia Hoss Lunelli Johnatt Oliveira Maria Regina Wolf Maciel Rubens Maciel Filho |
| author_sort | Andrea Komesu |
| collection | DOAJ |
| description | Actually, there is a growing interest in the biotechnological production of lactic acid by fermentation aiming to substitute fossil fuel routes. The development of an efficient method for its separation and purification from fermentation broth is very important to assure the economic viability of production. Due to its high reactivity and tendency to decompose at high temperatures, the study of lactic acid thermal behavior is essential for its separation processes and potential application. In the present study, differential scanning calorimetry (DSC) analyses showed endothermic peaks related to the process of evaporation. Data of thermogravimetry (TG/DTG) were correlated to Arrhenius and Kissinger equations to provide the evaporation kinetic parameters and used to determine the vaporization enthalpy. Activation energies were 51.08 and 48.37 kJ·mol−1 and frequency values were 859.97 and 968.81 s−1 obtained by Arrhenius and Kissinger equations, respectively. Thermogravimetry, coupled with mass spectroscopy (TG-MS), provided useful information about decomposition products when lactic acid was heated at 573 K for approximately 30 min. |
| format | Article |
| id | doaj-art-73a1aed7af5a4ffe80a7bc978af8bb3a |
| institution | Kabale University |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-73a1aed7af5a4ffe80a7bc978af8bb3a2025-08-20T03:33:53ZengWileyJournal of Chemistry2090-90632090-90712017-01-01201710.1155/2017/41495924149592Study of Lactic Acid Thermal Behavior Using Thermoanalytical TechniquesAndrea Komesu0Patricia Fazzio Martins Martinez1Betânia Hoss Lunelli2Johnatt Oliveira3Maria Regina Wolf Maciel4Rubens Maciel Filho5School of Chemical Engineering, University of Campinas (UNICAMP), Department of Process and Product Development, Av. Albert Einstein 500, 13083-970 Campinas, SP, BrazilSchool of Chemical Engineering, University of Campinas (UNICAMP), Department of Process and Product Development, Av. Albert Einstein 500, 13083-970 Campinas, SP, BrazilSchool of Chemical Engineering, University of Campinas (UNICAMP), Department of Process and Product Development, Av. Albert Einstein 500, 13083-970 Campinas, SP, BrazilInstitute of Health Sciences, Nutrition College, Federal University of Pará (UFPA), Augusto Corrêa St. 01, 66073-040 Belém, PA, BrazilSchool of Chemical Engineering, University of Campinas (UNICAMP), Department of Process and Product Development, Av. Albert Einstein 500, 13083-970 Campinas, SP, BrazilSchool of Chemical Engineering, University of Campinas (UNICAMP), Department of Process and Product Development, Av. Albert Einstein 500, 13083-970 Campinas, SP, BrazilActually, there is a growing interest in the biotechnological production of lactic acid by fermentation aiming to substitute fossil fuel routes. The development of an efficient method for its separation and purification from fermentation broth is very important to assure the economic viability of production. Due to its high reactivity and tendency to decompose at high temperatures, the study of lactic acid thermal behavior is essential for its separation processes and potential application. In the present study, differential scanning calorimetry (DSC) analyses showed endothermic peaks related to the process of evaporation. Data of thermogravimetry (TG/DTG) were correlated to Arrhenius and Kissinger equations to provide the evaporation kinetic parameters and used to determine the vaporization enthalpy. Activation energies were 51.08 and 48.37 kJ·mol−1 and frequency values were 859.97 and 968.81 s−1 obtained by Arrhenius and Kissinger equations, respectively. Thermogravimetry, coupled with mass spectroscopy (TG-MS), provided useful information about decomposition products when lactic acid was heated at 573 K for approximately 30 min.http://dx.doi.org/10.1155/2017/4149592 |
| spellingShingle | Andrea Komesu Patricia Fazzio Martins Martinez Betânia Hoss Lunelli Johnatt Oliveira Maria Regina Wolf Maciel Rubens Maciel Filho Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques Journal of Chemistry |
| title | Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques |
| title_full | Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques |
| title_fullStr | Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques |
| title_full_unstemmed | Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques |
| title_short | Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques |
| title_sort | study of lactic acid thermal behavior using thermoanalytical techniques |
| url | http://dx.doi.org/10.1155/2017/4149592 |
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