Valorization of Biomass Generated by Weeding of Flaveria bidentis: Optimization of the Process of Extraction Sulfated Flavonoids Using a Doehlert Experimental Design

This study presents a comprehensive optimization of algal oil extraction and transesterification for sustainable biodiesel production. Freshwater Spirogyra algae underwent Soxhlet extraction using n-hexane. response surface methodology (RSM), principal component analysis (PCA), and multivariate regression analysis (MRA) were employed to investigate the effects of biomass–solvent ratio (BSR), algae particle size (APS), and extraction-contact time (E-CT) on algal oil yield (AOY). The extracted oil was then converted to biodiesel via transesterification, and the impacts of the methanol–oil ratio (MOR) and transesterification-contact time (T-CT) on biodiesel conversion efficiency (BCE) were analyzed. Results demonstrate that optimal BSR, APS, and E-CT for maximal AOY are 1:7, 400 µm, and 3–4 h, respectively. For transesterification, a MOR of 12:1 and a T-CT of 4 h yielded the highest BCE. Predictive models exhibited exceptional accuracy, with R2 values of 0.916 and 0.950 for AOY and BCE, respectively. The produced biodiesel complied with ASTM D6751 and EN 14214, showcasing its potential for renewable energy applications.

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Valorization of Biomass Generated by Weeding of Flaveria bidentis: Optimization of the Process of Extraction Sulfated Flavonoids Using a Doehlert Experimental Design

Cited by 3 publications

References 32 publications

Optimization of the subcritical water extraction of sulfated flavonoids from Flaveria bidentis

Optimization of the subcritical water extraction of sulfated flavonoids from Flaveria bidentis

Optimization of supercritical carbon dioxide pretreatment of Flaveria bidentis leaves prior extraction of sulfated flavonoids with subcritical water

Optimizing Algal Oil Extraction and Transesterification Parameters through RSM, PCA, and MRA for Sustainable Biodiesel Production

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