Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties
The microalga <i>Tetradesmus obliquus</i> has emerged as a promising candidate for biotechnological and industrial applications due to its rapid growth, resilience under diverse environmental conditions, and potential for bioactive compound production. This study presents a multiparametr...
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MDPI AG
2025-07-01
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| author | Gilvana Scoculi de Lira Ihana Aguiar Severo Fernando Augusto Ferraz Iago Gomes Costa Matheus Murmel Guimarães Ingrid Fátima Zattoni Luiz Fernando Bianchini José Viriato Coelho Vargas Dhyogo Miléo Taher André Bellin Mariano |
| author_facet | Gilvana Scoculi de Lira Ihana Aguiar Severo Fernando Augusto Ferraz Iago Gomes Costa Matheus Murmel Guimarães Ingrid Fátima Zattoni Luiz Fernando Bianchini José Viriato Coelho Vargas Dhyogo Miléo Taher André Bellin Mariano |
| author_sort | Gilvana Scoculi de Lira |
| collection | DOAJ |
| description | The microalga <i>Tetradesmus obliquus</i> has emerged as a promising candidate for biotechnological and industrial applications due to its rapid growth, resilience under diverse environmental conditions, and potential for bioactive compound production. This study presents a multiparametric characterization of dry <i>T. obliquus</i> biomass cultivated in patented industrial-scale photobioreactors, integrating thermochemical, elemental, antioxidant, and protein analyses. Proximate and ultimate analyses were conducted to assess fuel potential, revealing favorable volatile matter (VM = 64.80–72.44%) and fixed carbon (FC = 15.77–21.23%) contents. The HHV (18.32–22.75 MJ·kg<sup>−1</sup>) and LHV (16.86–21.24 MJ·kg<sup>−1</sup>) confirmed the biomass as a viable candidate for solid biofuel. The elemental composition provided the total nitrogen values, subsequently used to estimate the protein content via both the Kjeldahl and Dumas methods, with results ranging from 36.66% to 40.02%, in line with the literature. Despite the absence of detectable antioxidant activity under the tested DPPH conditions, the biomass demonstrated a robust nutritional profile and energy potential. These findings support the industrial relevance of <i>T. obliquus</i> biomass, particularly for applications targeting sustainable protein sources and bioenergy solutions. |
| format | Article |
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| issn | 2076-2607 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | MDPI AG |
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| series | Microorganisms |
| spelling | doaj-art-b3d028f4bcf14f73b04c4f53a0c82b802025-07-25T13:31:09ZengMDPI AGMicroorganisms2076-26072025-07-01137158310.3390/microorganisms13071583Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy PropertiesGilvana Scoculi de Lira0Ihana Aguiar Severo1Fernando Augusto Ferraz2Iago Gomes Costa3Matheus Murmel Guimarães4Ingrid Fátima Zattoni5Luiz Fernando Bianchini6José Viriato Coelho Vargas7Dhyogo Miléo Taher8André Bellin Mariano9Graduate Program in Engineering and Material Science, Federal University of Paraná (PIPE/UFPR), Curitiba 81531-980, BrazilGraduate Program in Engineering and Material Science, Federal University of Paraná (PIPE/UFPR), Curitiba 81531-980, BrazilForest Engineering and Technology Department, Federal University of Paraná (DETF/UFPR), Curitiba 80210-170, BrazilGraduate Program in Engineering and Material Science, Federal University of Paraná (PIPE/UFPR), Curitiba 81531-980, BrazilSchool of Medicine and Life Sciences, Pontifical Catholic University of Paraná (PUC-PR), Curitiba 80215-901, BrazilSchool of Medicine and Life Sciences, Pontifical Catholic University of Paraná (PUC-PR), Curitiba 80215-901, BrazilSchool of Medicine and Life Sciences, Pontifical Catholic University of Paraná (PUC-PR), Curitiba 80215-901, BrazilGraduate Program in Engineering and Material Science, Federal University of Paraná (PIPE/UFPR), Curitiba 81531-980, BrazilGraduate Program in Engineering and Material Science, Federal University of Paraná (PIPE/UFPR), Curitiba 81531-980, BrazilGraduate Program in Engineering and Material Science, Federal University of Paraná (PIPE/UFPR), Curitiba 81531-980, BrazilThe microalga <i>Tetradesmus obliquus</i> has emerged as a promising candidate for biotechnological and industrial applications due to its rapid growth, resilience under diverse environmental conditions, and potential for bioactive compound production. This study presents a multiparametric characterization of dry <i>T. obliquus</i> biomass cultivated in patented industrial-scale photobioreactors, integrating thermochemical, elemental, antioxidant, and protein analyses. Proximate and ultimate analyses were conducted to assess fuel potential, revealing favorable volatile matter (VM = 64.80–72.44%) and fixed carbon (FC = 15.77–21.23%) contents. The HHV (18.32–22.75 MJ·kg<sup>−1</sup>) and LHV (16.86–21.24 MJ·kg<sup>−1</sup>) confirmed the biomass as a viable candidate for solid biofuel. The elemental composition provided the total nitrogen values, subsequently used to estimate the protein content via both the Kjeldahl and Dumas methods, with results ranging from 36.66% to 40.02%, in line with the literature. Despite the absence of detectable antioxidant activity under the tested DPPH conditions, the biomass demonstrated a robust nutritional profile and energy potential. These findings support the industrial relevance of <i>T. obliquus</i> biomass, particularly for applications targeting sustainable protein sources and bioenergy solutions.https://www.mdpi.com/2076-2607/13/7/1583calorific valueindustrial photobioreactorsmicroalgal biomassbioproductsphysicochemical compositionantioxidant |
| spellingShingle | Gilvana Scoculi de Lira Ihana Aguiar Severo Fernando Augusto Ferraz Iago Gomes Costa Matheus Murmel Guimarães Ingrid Fátima Zattoni Luiz Fernando Bianchini José Viriato Coelho Vargas Dhyogo Miléo Taher André Bellin Mariano Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties Microorganisms calorific value industrial photobioreactors microalgal biomass bioproducts physicochemical composition antioxidant |
| title | Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties |
| title_full | Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties |
| title_fullStr | Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties |
| title_full_unstemmed | Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties |
| title_short | Multiparametric Evaluation of <i>Tetradesmus obliquus</i> Biomass: An Integrated Approach Including Antioxidant, Nutritional, and Energy Properties |
| title_sort | multiparametric evaluation of i tetradesmus obliquus i biomass an integrated approach including antioxidant nutritional and energy properties |
| topic | calorific value industrial photobioreactors microalgal biomass bioproducts physicochemical composition antioxidant |
| url | https://www.mdpi.com/2076-2607/13/7/1583 |
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