Thermogravimetry and Py–GC/MS techniques as fast qualitative methods for comparing the biochemical composition of Nannochloropsis oculata samples obtained under different culture conditions

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Title: Thermogravimetry and Py–GC/MS techniques as fast qualitative methods for comparing the biochemical composition of Nannochloropsis oculata samples obtained under different culture conditions
Authors: Valdés Barceló, Francisco Javier | Hernández Férez, María del Remedio | García Quesada, Juan Carlos | Marcilla, Antonio
Research Group/s: Procesado y Pirólisis de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Ingeniería Química | Universidad de Alicante. Instituto Universitario de Ingeniería de los Procesos Químicos
Keywords: Biochemical composition | Thermogravimetric analysis | Pyrolysis
Knowledge Area: Ingeniería Química
Issue Date: Mar-2013
Publisher: Elsevier
Citation: Bioresource Technology. 2013, 131: 86-93. doi:10.1016/j.biortech.2012.12.133
Abstract: Microalgae have many applications, such as biodiesel production or food supplement. Depending on the application, the optimization of certain fractions of the biochemical composition (proteins, carbohydrates and lipids) is required. Therefore, samples obtained in different culture conditions must be analyzed in order to compare the content of such fractions. Nevertheless, traditional methods necessitate lengthy analytical procedures with prolonged sample turn-around times. Results of the biochemical composition of Nannochloropsis oculata samples with different protein, carbohydrate and lipid contents obtained by conventional analytical methods have been compared to those obtained by thermogravimetry (TGA) and a Pyroprobe device connected to a gas chromatograph with mass spectrometer detector (Py–GC/MS), showing a clear correlation. These results suggest a potential applicability of these techniques as fast and easy methods to qualitatively compare the biochemical composition of microalgal samples.
Sponsor: The Authors wish to thank Repsol YPF for the financial support that provided (Project reference: Ingenio 2010-CDTI-Sost CO2-CEN-2008-1027) and the Generalitat Valenciana by the fellowship of one of the authors (Program VALI + D).
URI: http://hdl.handle.net/10045/40347
ISSN: 0960-8524 (Print) | 1873-2976 (Online)
DOI: 10.1016/j.biortech.2012.12.133
Language: eng
Type: info:eu-repo/semantics/article
Peer Review: si
Publisher version: http://dx.doi.org/10.1016/j.biortech.2012.12.133
Appears in Collections:INV - GTP3 - Artículos de Investigación sobre Pirólisis Catalítica de Polímeros

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