Biodiesel production by various oleaginous microorganisms from organic wastes

Cho, Hyun Uk; Park, Jong

doi:10.1016/j.biortech.2018.02.010

Cited by 150 publications

(79 citation statements)

References 77 publications

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“…There are three major groups of microorganisms, namely, microalgae, yeast, and filamentous fungi, and finally, bacteria, that can accumulate high content of lipids (>20% w/w on the cell dry weight basis) in their cellular compartments and are considered as oleaginous feedstock for biofuel production [50]. A list of oleaginous microorganisms cultivated on various substrates for biodiesel production is presented with their lipid content in Table 1.…”

Section: Oleaginous Microorganisms Used For Biofuel Productionmentioning

confidence: 99%

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An Overview of Potential Oleaginous Microorganisms and Their Role in Biodiesel and Omega-3 Fatty Acid-Based Industries

et al. 2020

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Microorganisms are known to be natural oil producers in their cellular compartments. Microorganisms that accumulate more than 20% w/w of lipids on a cell dry weight basis are considered as oleaginous microorganisms. These are capable of synthesizing vast majority of fatty acids from short hydrocarbonated chain (C6) to long hydrocarbonated chain (C36), which may be saturated (SFA), monounsaturated (MUFA), or polyunsaturated fatty acids (PUFA), depending on the presence and number of double bonds in hydrocarbonated chains. Depending on the fatty acid profile, the oils obtained from oleaginous microorganisms are utilized as feedstock for either biodiesel production or as nutraceuticals. Mainly microalgae, bacteria, and yeasts are involved in the production of biodiesel, whereas thraustochytrids, fungi, and some of the microalgae are well known to be producers of very long-chain PUFA (omega-3 fatty acids). In this review article, the type of oleaginous microorganisms and their expertise in the field of biodiesel or omega-3 fatty acids, advances in metabolic engineering tools for enhanced lipid accumulation, upstream and downstream processing of lipids, including purification of biodiesel and concentration of omega-3 fatty acids are reviewed.

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Section: Oleaginous Microorganisms Used For Biofuel Productionmentioning

confidence: 99%

“…Oleaginous bacteria are also a good source of TAGs; however, their utilization for biodiesel production is limited compared to microalgae and yeast [50]. Some important genera of oleaginous bacteria are Rhodococcus sp., Gordonia sp., Acinetobacter sp., and Arthrobacter species.…”

Section: Oleaginous Bacteriamentioning

confidence: 99%

An Overview of Potential Oleaginous Microorganisms and Their Role in Biodiesel and Omega-3 Fatty Acid-Based Industries

et al. 2020

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“…NMR-active nuclei in lipid molecules include carbon ( 13 C), hydrogen ( 1 H), oxygen ( 17 O), and phosphorus ( 31 P), with 1 H NMR being the most common for lipid profiling of algal samples [119]. 1 H NMR allows the quantification of different lipid classes such as steroids and some pigments (carotenoids and chlorophylls), which contain protons with non-overlapping peaks [120]. 13 C NMR can be used for the quantification of different lipid components in an extract by way of particular pulse sequences such as inverse gated decoupling and an appropriate standard [120].…”

Section: Infrared Spectroscopymentioning

confidence: 99%

“…Other advantages include the high speed of analysis compared to traditional techniques (i.e., GC, MS, UV or IR spectroscopy) and that it is non-destructive, enabling recovery of the sample for further analysis. 1 H and 13 C NMR have been applied for profiling the main components of whole algal cells [39,[119][120][121][122][123][124]. Besides a complete lipid quantification profile, Sharpal et al (2015) performed a cost and practicability analysis of the method [121].…”

Section: Infrared Spectroscopymentioning

confidence: 99%

“…In the search for alternatives to fossil-derived oils, oleaginous microorganisms have attracted attention as potential sources of oil feedstocks. Microalgae, yeasts, fungi, and bacteria, can accumulate high amounts of lipids (> 20% of cell dry weight) in their cellular compartments and are considered as oleaginous feedstocks for biofuel production [1]. A list of oleaginous microorganisms and their lipid accumulation ability is presented in Table 1.…”

Section: Introductionmentioning

confidence: 99%

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Lipids detection and quantification in oleaginous microorganisms: an overview of the current state of the art

2019

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Oleaginous microorganisms are among the most promising feedstocks for the production of lipids for biofuels and oleochemicals. Lipids are synthesized in intracellular compartments in the form of lipid droplets. Therefore, their qualitative and quantitative analysis requires an initial pretreatment step that allows their extraction. Lipid extraction techniques vary with the type of microorganism but, in general, the presence of an outer membrane or cell wall limits their recovery. This review discusses the various types of oleaginous microorganisms, their lipid accumulating capabilities, lipid extraction techniques, and the pretreatment of cellular biomass for enhanced lipid recovery. Conventional methods for lipid quantification include gravimetric and chromatographic approaches; whereas nonconventional methods are based on infrared, Raman, nuclear magnetic resonance, and fluorescence spectroscopic analysis. Recent advances in these methods, their limitations, and fields of application are discussed, with the aim of providing a guide for selecting the best method or combination of methods for lipid quantification.

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Nonconventional Lipid Sources for Biodiesel Production

Bueno-Borges¹,

Sangaletti‐Gerhard²,

Camargo³

et al. 2020

Bailey's Industrial Oil and Fat Products

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In the beginning, the diesel engine ran on vegetable oil, and it was peanut oil, an edible oil, that was first used for this purpose. As fossil fuels may become scarce and prices could escalate, soybean, canola/rapeseed, and other known oils are being used. As the discussion on food security, environmental protection, and energy generation continues, alternative sources of oils or fats for biodiesel synthesis are being studied. Waste frying oil and animal fats have also been used as feedstock for biodiesel production at the same time as nonedible oils ( Jatropha , castor), oil industrial plants coproduct (palm fatty acid distillate), and unconventional lipid sources (microbial oils and sewage sludge) have now been brought into light. When it comes to long‐term implementation of adoption in a commercial scale one of these so‐called nonconventional lipid sources, what has been observed is that continuous production of regular quality feedstock, adequate infrastructure for collecting or harvesting, storing, processing, and transporting (logistics) prevails; only cost‐effective choices have proven successful.

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Biodiesel production by various oleaginous microorganisms from organic wastes

Cited by 150 publications

References 77 publications

An Overview of Potential Oleaginous Microorganisms and Their Role in Biodiesel and Omega-3 Fatty Acid-Based Industries

An Overview of Potential Oleaginous Microorganisms and Their Role in Biodiesel and Omega-3 Fatty Acid-Based Industries

Lipids detection and quantification in oleaginous microorganisms: an overview of the current state of the art

Nonconventional Lipid Sources for Biodiesel Production

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