THIRD GENERATION BIODIESEL PRODUCTION FROM MICROALGAE Phormidium autumnale

Abstract

-The aim of this work was to evaluate third generation biodiesel production by the microalgae Phormidium autumnale using sucrose as exogenous carbon source. The study focused on optimization of the different C/N ratios and on the analysis of biofuel quality. The results indicate that a C/N ratio of 40 improved the performance of the system, reaching single-cell oil productivities of 18.9 mg/L in steady-state conditions. This oil has a composition predominantly saturated (45.2%) and monounsaturated (34.7%) suitable for biodiesel synthesis (ester content of 99.8%, cetane number of 58.5%, iodine value of 67.2 gI2/100 g, unsaturation degree of 71.3% and a cold filter plugging point of 6.7 ºC).

Cyanobacteria as an eco‐friendly resource for biofuel production: A critical review

“…The optimum condition was obtained at 0.01 mM of CT in BG‐11 + at the pH of 7.5, after 10 days. The optimization of carbon/nitrogen ratio in the cultivation of Phormidium autumnale was investigated by Siqueira et al By using synthetic BG‐11 medium and exogenous sucrose source with the C/N ratio of 40, the cyanobacterial oil composition had desirable properties for biodiesel production. Anabaena sp.…”

Introductory Chapter: Microalgae Biotechnology - A Brief Introduction

“…The bioethanol is obtained by biochemical processes through the fermentation of sugars (cellulose, xylose, galactose, arabinose, glucose and mannose) of the biomass and subsequent hydrolysis of the starch and cellulose content by a thermochemical process. On the other hand, the biohydrogen can be produced through two enzymatic pathways: direct photolysis or indirect photolysis [23,26].…”

DISRUPTION OF Nannochloropsis gaditana (EUSTIGMATOPHYCEAE) RIGID CELL WALL BY NON-THERMAL PLASMA PRIOR TO LIPID EXTRACTION AND ITS EFFECT ON FATTY ACID COMPOSITION

“…Microalgae have been identified by many researchers as a promising feedstock for biofuel production (Chisti, 2007;Phukan et al, 2011;Franz et al, 2013;Jazzar et al, 2015). In fact, several species of microalgae are able to accumulate carbohydrates and lipids which can be chemically converted into biofuels (Jazzar et al, 2015;Siqueira et al, 2016). Among them, Nannochloropsis gaditana belonging to the Eustigmatophyceae genus, is particularly interesting because of its high growth rate, lipid productivity, and ability to synthesize high value chemicals, such as pigments (carotenoids) and fatty acids with medium (C 16 and C 18 ) and long (C 20:5ɷ3 ) chain carbons (Matos et al, 2015;Mitra et al, 2015;Matos et al, 2016;Matos, 2017).…”