Biodiesel produced from microalgae will not compromise the production of food and other products derived from crops. Mechanistic assessment of microalgal lipid extraction. Microalgal biotechnology appears to possess high potential for biodiesel production because a significant increase in lipid content of microalgae is now possible through heterotrophic cultivation. Biodiesel fuel production from algae as renewable energy. They use chemical and transcriptomic assays to demonstrate that feeding carbon source. Biodiesel production by microalgal biotechnology guanhua huang a, feng chen b,c, dong wei c, xuewu zhang c, gu chen c a b c school of chemical engineering and technology, china university of mining and technology, china school of biological sciences, the university of hong kong, pokfulam, hong kong, china college of light industry and food. In the present study three brackish water microalgal strains chlorococcum sp. Jan 01, 2010 biodiesel has received much attention in recent years.
Undoubtedly, microalgae biodiesel production using wastewater is an apparently. Ideally, microalgal biodiesel can be carbon neutral. First, the cultivation of microalgae dose not need much land as compared to that of terraneous plants. Microalgae as a sustainable raw material for biofuels production biodiesel. Biodiesel production from algae usually involves the conversion of lipids from algae through indirect transesterification in two steps 2te. In recent years microalgae have been proved as the potential source for biodiesel production due to high oil content. Biodiesel fuel production from algae as renewable energy a. Microalgal biodiesel refinery producing multiple products from algal biomass. In making biodiesel, triglycerides are reacted with. The commercial reality of bioactive compounds and oil production from microalgal species is constrained by the high cost of production. First, the cultivation of microalgae dose not need much land as compared to that of terraneous plants 20. Biodiesel production by microalgal biotechnology mafiadoc. Isolation of a euryhaline microalgal strain, tetraselmis.
This book focuses on the development of biodiesel systems from the production of feedstocks and their processing technologies to the comprehensive applications of both by products and biodiesel. Contributions from academia and industrial case studies make this book a comprehensive survey of current progress in microalgae biotechnology. The high lipid content of the microalgae is not only sufficient parameter, but also they should be resistant to harsh conditions, capable of rapid growth and easy to culture. Microalgal enzymes with biotechnological applications.
Microalgae as the feedstock for biodiesel production. Jun 20, 20 microalgae are touted as an attractive alternative to traditional forms of biomass for biofuel production, due to high productivity, ability to be cultivated on marginal lands, and potential to utilize carbon dioxide co2 from industrial flue gas. Biodiesel production by microalgal biotechnology, applied. On the other hand, some microalgal species could accumulate lipids to a significant portion of their biomass 30. Seawater is considered as an attractive medium for cultivation of microalgae since it contains most of the mineral nutrients. Progress and challenges in microalgal biodiesel production. Microalgae biotechnology for development of biofuel and. Microalgaebacteria symbiosis in microalgal growth and. Jun 26, 2018 microalgal cells have the potential to rapidly accumulate lipids which find applications as biodiesel production and nutraceuticals e. Production of biodiesel from microalgae intechopen. Producing biofuel from microalgae has gained renewed interest recently. Biodiesel production by microalgal biotechnology rvo.
Many studies have screened and identified microalgal species for biodiesel production based on their high lipid contents griffiths et al. Although numerous reports are available on the production of biodiesel from vegetable oils of terraneous oilplants, such as soybean, sunflower and palm oils, the production of biodiesel from microalgae is a newly emerging field. Despite this, current microalgabased processes suffer from several constraints pertaining to the biocatalyst and the bioreactor, which hamper technologically and economically feasible scaleup. Biofuels from microalgae li 2008 biotechnology progress. Life cycle assessment of biodiesel production from microalgae. Microalgae have high potentials in biodiesel production compared to other oil crops. Besides, it offers the advantage of lesser bacterial and fungal contamination which is the main cause of decreased. B1 in which three fatty acid molecules are esterified with a molecule of glycerol. Production of methyl esters, or biodiesel, from microalgal oil has been demonstrated belarbi et al. Microalgal biotechnology for lipids production microalgae have high potentials in biodiesel production compared to other oil crops.
Microalgal biotechnology appears to possess high potential for. Towards biorefinery production of microalgal biofuels and. Pdf microalgae have long been considered as a promising feedstock for. Harnessing cn balance of chromochloris zofingiensis to. Wastewater through microalgae and the subsequent fermen tation of. Such production will add significant commercial values to existing microalgal biodiesel production frame work and can potentially be used to design a novel and costeffective microalgal biorefinery system. The main focus of most current interest in algae biofuels is the production of algae oils. The ultimate goal is develop a novel process for algal biodiesel production directly from microalgae cells in a single step, i. This work examines the fossil energy return on investment eroifossil, greenhouse gas ghg emissions, and direct water demands wd of producing. Microalgae biotechnology for development of biofuel and wastewater treatment.
However, the laboratory screening protocols alone cannot predict the ability of the strains to dominate and perform in. Microalgal biofuels offer great promise in contributing to the growing global demand for alternative sources of renewable energy. Downstream processing, which includes harvesting and extraction, can account for 7080% of the total cost of production. Selection of lipidrich microalgae, thus, becomes one of the key research topics for microalgal biodiesel production. Consequently, from an economic perspective extraction technologies need to be improved. Key strategies for successful algae biofuels commercialization. Effective cultivation of microalgae for biofuel production. Microalgal biotechnology appears to possess high potential for biodiesel production because a signi.
Microalgal biotechnology appears to possess high potential for biodiesel production because a significant increase in lipid content of microalgae is now possible through heterotrophic cultivation and genetic engineering approaches. This is a substantial amount of energy and it should run the microalgal biomass production process. Microalgae have much higher lipid yields than those of agricultural oleaginosous crops, and they do not compromise arable land. Microalgal biotechnology appears to possess high potential for biodiesel production because a significant increase in lipid content of microalgae is now possible. Pdf biodiesel production by microalgal biotechnology. Applied biochemistry and biotechnology part a enzyme. Jun, 2016 commercial production of microalgal biodiesel is not yet economically viable, largely because of low storage lipid yield in microalgae mass cultivation. Ultimately, this article focuses on applications in pbrs and gives an outlook for this field, aiming at microalgae cultivation and biodiesel production from microalgal lipids. Nov 18, 2016 as the search for alternatives to fossil fuels continues, microalgae have emerged as a promising renewable feedstock for biodiesel. Bagchi sk, koley s and singh ak 2016 progress and challenges in microalgal biodiesel production. Biodiesel production by microalgal biotechnology sciencedirect.
Biodiesel production using chlorella sorokiniana a green microalga. Microalgal biotechnology appears to possess high potential for biodiesel production because a significant. Evaluation of freshwater microalgal isolates for growth and. Pdf biodiesel production from microalgae researchgate. Recently, technological advancements have brought microalgae biodiesel closer to.
The first step typically is the dewatering of algae. In situ microalgal biomass processing for biodiesel production. Microalgal produced triacylglycerol and other lipids can be transesterified into fatty acid methyl esters and are of substantial interest as biodiesel precursors scott et al. Microalgae of odisha coast as a potential source for. It should be of interest for students, researchers, scientists and technologists. The novelty of this work is the estimation of the fuel properties of biodiesel, a comparison study with conventional sources of biodiesel commonly used as feedstock, and an investigation for meeting the requirements of the standard specifications for this fuel produced by six strains of microalgae three cyanobacteria, two green. Schizochytrium limacinum is a heterotrophic microalga that is capable of producing high levels of biomass and total fatty acid. Types of microalgae cultivation photobioreactors and. The objective of this work is to explore the potential of producing biodiesel fuel from this alga using different biodiesel preparation methods, including oil extraction followed by. So this book will be of interest to active people in biology, biotechnology, and engineering in the area of sustainable production of high value products or mass production of food and fuel for the future.
Engineering the metabolic pathways of lipid biosynthesis to. This research was to process whole microalgae cells for biodiesel production without first extracting lipids. Sustainable biodiesel production from microalgae cultivated with. Isolation of a euryhaline microalgal strain, tetraselmis sp. Microalgal lipid extraction strategies for biodiesel production. Indeed, biodiesel produced from microalgae will not compromise the production of. However, to make algaebased fuels cost competitive with petroleum, lipid production capabilities of microalgae need to improve. Oct 21, 2016 bioprospecting for novel microalgal strains is key to improving the feasibility of microalgaederived biodiesel production. I have also been associated with pes university bangalore as a research associate with the department of biotechnology in a dbt funded project production of tags from microalgae in a photobioreactor intended for biodiesel production under the mentorship of prof.215 1434 268 472 984 776 446 835 468 360 1120 739 28 1049 633 1039 597 616 1461 163 1190 1168 652 955 252 1212 1470 1384 295 652