Effects of temperature and nutrient regimes on biomass and lipid production

Bioresource Technology 129 (2013) 439–449 Contents lists available at SciVerse ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Effects of temperature and nutrient regimes on biomass and lipid production by six oleaginous microalgae in batch culture employing a two-phase cultivation strategy Michael Y. Roleda ⇑,1, Stephen P. Slocombe 1, Raymond J.G. Leakey, John G. Day, Elanor M. Bell, Michele S. Stanley Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll PA37 1QA, Scotland, UK highlights graphical abstract " Nutrient and temperature " " " " interactively affect growth but no additive effect on lipid accumulation of oleaginous microalgae. Growth rate and fatty acid content were negatively correlated. Triacylglycerol accumulation was a default response to environmental stress. Stress conditions led to reduced fatty acid unsaturation. Nutrient limitation was the most critical factor affecting lipid metabolism. article info Article history: Received 20 June 2012 Received in revised form 6 November 2012 Accepted 7 November 2012 Available online 19 November 2012 Keywords: Biofuel Fatty acid Growth Microalgae Stress physiology abstract Commercial success of algal-based biofuels depends on growth characteristics and lipid metabolism of the production species. The oleaginous microalgae, Thalassiosira pseudonana, Odontella aurita,…

Great Britain 0960-1481/95 $9.50 + 0.00 ENERGY GENERATION FROM BIOMASS AND WASTE IN THE NETHERLANDS: A BRIEF OVERVIEW AND PERSPECTIVE H.A.M. Knoef and H.E.M. Stassen BTG Biomass Technology Group B.V., P.O.Box 217, NL-7500 AE Enschede, The Netherlands ABSTRACT For a number of years, the interest in energy generation on the basis of biomass and waste has been increasing. A brief overview is given of biomass waste availability in the Netherlands. In recent years several new projects…

chega às impressoras Tecnologia Biomass Toner A Empresa Ricoh desenvolveu uma tecnologia para a utilização do biomass como matériaprima para a resina, o elemento principal de toner. Esta tecnologia vai diminuir os impactos ambientais da utilização de toner que irá suprimir o esgotamento do petróleo e reduzir as emissões de CO² e emissões de carbono através de processos neutros. Biomassa utilizada como elemento principal de toner Quando o papel de cópia usado é reciclado, o…

A THERMIE PROGRAMME ACTION Combustion and Gasification of Agricultural Biomass - Technologies and Applications European Commission Directorate-General for Energy (DG XVII) R. E .S . THERMIE (1990 - 1994) This is an important European Community programme designed to promote the greater use of European energy technology. Its aim is to assist the European Union in achieving its fundamental objectives: x improving the enrgy supply prospects of the European Union; x…

convertidos em biodiesel por esterificação, e mostrou-se que a etapa da secagem da biomassa pode ser excluída sem a perda do material graxo. Keywords: fatty acid extraction, wet biomass, saponification, Scenedesmus sp., photobioreactor. Nomenclature B&D B&D method BHT butylhydroxytoluene C12:0 lauric acid C14:0 myristic acid C16:0 palmitic acid C16:1 palmitoleic acid C18:0 stearic acid C18:1ω9c oleic acid C18:2ω6c linoleic acid C18:3ω3 α-linolenic acid C20:0 arachidic acid GC gas…

661 DRY BIOMASS DISTRIBUTION IN A CERRADO SENSU STRICTO SITE IN CENTRAL BRAZIL1 Ailton Teixeira do Vale 2 e Jeanine Maria Felfili2 ABSTRACT – The Cerrado has been the main source of firewood and charcoal in Brazil, but despite being one of the hot spots for conservation of the world’s biodiversity, neither plantations of native species nor sustainable management has been adopted in the region. The aim of this work was to investigate the biomass distribution and the potential for energy…

são os mais utilizados para a quantificação da BMS. Nesta revisão, os principais métodos são apresentados e discutidos quanto à utilidade e confiabilidade. Palavras-chave: microscopia direta, constituintes celulares, respiração induzida, fumigação-incubação, fumigação-extração METHODS FOR QUANTIFYING SOIL MICROBIAL BIOMASS ABSTRACT Soil microbial biomass (SMB) is the main component of the decomposers subsystem that regulates nutrient cycling, energy flow, and productivity of…

energia radiativa do fogo. ABSTRACT: DETERMINATION AND MODELING THE CONSUMPTION RATE OF BURNED BIOMASS The present study evaluates the use of fire radiative energy (FRE) to estimate the emissions of particulate matter with diameter less than 2.5 μm (PM2,5µm) from the multiplicative coefficient relating the biomass consumption with the released FRE. The MODIS (Moderate Resolution Imaging Spectroradiometer) and GOES (Geostationary Operational Environmental Satellite) products were utilized…

giganteus in a long-­‐term field experiment in Central Italy: Analysis of productive characteristics and energy balance. biomass and bioenergy 33, 635-­‐643. [3] Askegaard M., Olesen J.E., Rasmussen I.A., & Kristensen K., 2011. Nitrate leaching from organic arable crop rotations …

has been developed that incorporates most lakes in a scale of 0 to 100. Each major division ( 10, 20, 30, etc. ) represents a doubling from any of several parameters, in algal biomass. The index number can bc calculated including Secchi disk transparency, chlorophyll, and total phosphorus. My purpose here is to present a new approach to the trophic classification of lakes. This new approach was developed because of frustration in communicating to the public both the current nature or…