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Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques
Joint Authors
Komesu, Andrea
Martins Martinez, Patricia Fazzio
Lunelli, Betânia Hoss
Oliveira, Johnatt
Wolf Maciel, Maria Regina
Maciel Filho, Rubens
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-18
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
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.
American Psychological Association (APA)
Komesu, Andrea& Martins Martinez, Patricia Fazzio& Lunelli, Betânia Hoss& Oliveira, Johnatt& Wolf Maciel, Maria Regina& Maciel Filho, Rubens. 2017. Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques. Journal of Chemistry،Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1171809
Modern Language Association (MLA)
Komesu, Andrea…[et al.]. Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques. Journal of Chemistry No. 2017 (2017), pp.1-7.
https://search.emarefa.net/detail/BIM-1171809
American Medical Association (AMA)
Komesu, Andrea& Martins Martinez, Patricia Fazzio& Lunelli, Betânia Hoss& Oliveira, Johnatt& Wolf Maciel, Maria Regina& Maciel Filho, Rubens. Study of Lactic Acid Thermal Behavior Using Thermoanalytical Techniques. Journal of Chemistry. 2017. Vol. 2017, no. 2017, pp.1-7.
https://search.emarefa.net/detail/BIM-1171809
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171809