TAILIEUCHUNG - BÁO CÁO " LIPID PRODUCTION FROM MICROALGAE AS A PROMISING CANDIDATE FOR BIODIESEL PRODUCTION "

Recently, several strains of microalgae have been studied as they contain high lipid content capable to be converted to biodiesel. Fresh water microalgae Chlorella vulgaris studied in this research was one of the proof as it contained high triacyl glyceride which made it a potential candidate for biodiesel production. Factors responsible for good growing of microalgae such as CO2 and nitrogen concentration were investigated. It was found that total lipid content was increased after exposing to media with not enough nitrogen concentration. However, under this nitrogen depletion media, the growth rate was very slow leading to lower lipid productivity. The. | MAKARA TEKNOLOGI VOL. 13 NO. 1 APRIL 2009 47-51 LIPID PRODUCTION FROM MICROALGAE AS A PROMISING CANDIDATE FOR BIODIESEL PRODUCTION Arief Widjaja Department of Chemical Engineering Institute of Technology Sepuluh November Surabaya 60111 Indonesia E-mail arief_w@. id Abstract Recently several strains of microalgae have been studied as they contain high lipid content capable to be converted to biodiesel. Fresh water microalgae Chlorella vulgaris studied in this research was one of the proof as it contained high triacyl glyceride which made it a potential candidate for biodiesel production. Factors responsible for good growing of microalgae such as CO2 and nitrogen concentration were investigated. It was found that total lipid content was increased after exposing to media with not enough nitrogen concentration. However under this nitrogen depletion media the growth rate was very slow leading to lower lipid productivity. The productivity could be increased by increasing CO2 concentration. The lipid content was found to be affected by drying temperature during lipid extraction of algal biomass. Drying at very low temperature under vacuum gave the best result but drying at 60oC slightly decreased the total lipid content. Keywords microalgae lipid productivity biodiesel nitrogen concentration 1. Introduction Microalga is a photosynthetic microorganism that is able to use the solar energy to combine water with carbon dioxide to create biomass. Because the cells grow in aqueous suspension they have more efficient access to water CO2 and other nutrients. Microalgae growing in water have fewer and more predictable process variables sunlight temperature than higher plant systems allowing easier extrapolation from one site even climatic condition to others. Thus fewer sitespecific studies are required for microalgae than for example tree farming. Also microalgae grow much faster than higher plants and require much less land areas. However the utilization of .

• Báo cáo khoa học
• microalgae
• lipid
• productivity
• biodiesel
• nitrogen
• concentration
• High Lipid Induction
• Microalgae for Biodiesel Production
• Sustainable production of renewable energy
• Lipids in Microalgae
• Methods of Lipid Induction
• Genetic Engineering of Microalgae to Increase Lipid Production
• Journal of Science and Technology
• Improvement of CO2 purifying system
• Photocatalyst for application in microalgae culture technology
• Photocatalyst for application
• Microalgae culture technology
• Coal fired flue gas
• Traditional adsorption catalysis system
• Biodiesel Feedstock Production
• Freshwater Microalgae Grown
• Sugarcane Juice Hydrolysate
• Microalgae derived biodiesel
• The heterotrophic growth
• Sugarcane thick juice
• Cultivation of Microalgae
• Cultivation of Microalgae Chlorella sp
• Potentional Biofuel Feedstock
• The Scenedesmus sp
• The Chlorella sp
• Journal of technology and science education
• Learning sustainability by developing a solar dryer
• Solar dryer for microalgae retrieval
• Social compromise skills
• Microalgae drying process
• Dissecting lipid accumulation of microalgae Nannochloropsis oculata
• Microalgae Nannochloropsis oculata using fluorescent image analysis
• Nitrogen depleted conditions
• Diameter reached the highest value
• Ankist rodesmus
• Fish feed
• Formation of biomass
• Microalgae depending
• Microalgae depending on the generation
• Natural science
• The microalgae chaetoceros muelleri
• Giao Thuy mangrove
• Chaetoceros muelleri
• Mangrove microalgae
• Fatty acid
• Membrane photobioreactor
• Nutrient removal
• Microalgae bacteria
• Two light dark cycles
• Nitrogen and phosphorus
• Microalgae retention time
• The toxicity of lead to the freshwater microalgae scenedesmus
• The water flea daphnia carinata
• The freshwater microalgae scenedesmus
• Metal uptake capacity
• Freshwater microalga Scenedesmus sp
• Environmental advances
• Biostimulant of microalgae
• Viopesticide potential of microalgae
• Piggery wastewater
• Germination index
• Microalgae biofuels
• Microalgae harvesting
• Electro coagulation
• Bio oil
• Bio ethanol
• Bio syngas
• Water parameters
• Microalgae distribution
• Narmada river basin
• Microalgae number
• Highest in pre monsoon followed
• Fatty acids
• Single cell oil
• Sao paulo for lipid production
• Microalgae from mangrove area
• Evaluation of microalgae
• Scientific reports
• progress reports at scientific collections
• agronomic reports
• reports in physics
• biology reports
• thematic biological
• Vietnam Journal of Science and Technology
• The removal of nitrogen
• The removal of phosphorous
• Microalgae bacterial consortium
• Piggery wastewater treatment
• Harvesting of microalgae chlorella SP
• Electrochemical flotation method
• Electrochemical flotation process
• Aluminum or iron plates
• Microalgae for Bioenergy Application
• Effect of Salinity
• Effect of pH
• Effect of Light Intensity
• Growth and Lipid Production
• Simple genomic DNA extraction
• Efficient and universal method
• The extraction of genomic DNA
• Genomic DNA from bacteria
• Microalgae suitable
• PCR based applications
• 18s rRNA
• Algal lipid
• Plackett burmann design
• Isolation of microalgae
• Biomass and lipid enhancement
• Chemical oxygen demand
• Chlorella MA 6
• Treated dairy industrial effluent
• Physico chemical properties
• Microalgae on physico chemical properties
• Rhizoclonium sp
• Saccharomyces cerevisiae
• Phycoremediate terrestrial microalgae serves source
• Ponds production system
• Bioethanol production
• Role of microalgae
• Cultivation of zooplankton
• Biomass production
• Basis of micronutrients
• Dunaliella spp
• Production in cell biomass
• Saline stress in microalgae Dunaliella spp
• Moroccan saharian saline
• Antioxidant compounds