Modelling lipid production in microalgae
نویسندگان
چکیده
Microalgae offer potentially great opportunities for producing biofuel. In order to optimize triglycerid production, this article proposes a dynamical model of microalgal lipid production. In this model, intracellular carbon is divided between a functional pool and two storage pools (sugars and neutral lipids). The various intracellular carbon flows between these pools lead to a complex dynamic with a strong discrepancy between accumulation and mobilization of neutral lipids. This generates an hysteresis which has been observed experimentally. The model has been validated with experiments of Isochrysis affinis galbana (T. iso) culture under various nitrogen limitation conditions.
منابع مشابه
تعیین دمای بهینۀ رشد ریزجلبک نانوکلروپسیس اوکولاتا (Nannochloropsis oculata) برای تولید سوخت سبز (بیودیزل)
One of the promising sources for biodiesel production and lowering energy crisis is microalgae lipid and attracted much attention in recent years. The aim of this study was to investigate the Effect of temperature on the Lipid productivity as factors affecting biodiesel economic performance. Microalgae Nannochloropsis Oculata in Walne medium and seven different temperatures were cultured. Cell ...
متن کاملEffects of salinity on growth and fatty acid composition of green microalgae Dunaliella bardawil as a candidate source for biofuel production
Microalgae as a source of saturated and unsaturated fatty acids, pigments, pharmaceutical and food metabolites, has received more focus by biological researchers at last decades. The amount and composition of fatty acids produced by microalgae depended on biomass production and environmental factors such as changes in salinity, light and nutrient availability. In this study, the green microalga...
متن کاملGrowth and lipid accumulation in response to different cultivation temperatures in Nannochloropsis oculata for biodiesel production
Background: Microalgal lipid is a promising feedstock for biodiesel production. The aim of the present study was to investigate the effects of cultivation temperature on the growth and lipid accumulation properties of Nannochloropsis oculata microalgae. Methods: Nannochloropsis oculatacan grow in a wide range of temperatures (5 ~ 35°C). Late in the stationary growth phase of microalgae, bi...
متن کاملSanitary Wastewater Supplemented with Glycerol to Obtain Lipid-Rich Microalgal Biomass
Introduction: Mixotrophic microalgae systems have great potential for bioenergy production and wastewater treatment. Anaerobic-treated wastewater supplemented with carbon can improve biomass yield and quality, as it presents low carbon content. Alternative carbon sources in microalgae cultivation, such as glycerol, are essential for minimizing the economic and environmental impacts caused by bi...
متن کاملEvaluation of factors affecting on lipid extraction for recovery of fatty acids from Nannochloropsis oculata micro-algae to biodiesel production
Background: This study aimed at determining the appropriate method for dewatering and drying biomass and selecting a suitable organic solvent for lipid extraction. Methods: Nannochloropsis Oculata was cultured in Gillard F/2 medium and after reaching the end of the stationary growth phase, algal biomass was separated from aqueous by centrifuge and dried through three methods: Oven, Air-dried an...
متن کامل