microbial oil
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2021 ◽  
pp. 110907
Simara Somacal ◽  
Sabrina Somacal ◽  
Vandré Sonza Pinto ◽  
Cassandra de Deus ◽  
Raquel Guidetti Vendruscolo ◽  

2021 ◽  
pp. 126312
Yaning Xu ◽  
Xuemei Wang ◽  
Zifu Li ◽  
Shikun Cheng ◽  
Jiacheng Jiang

Molecules ◽  
2021 ◽  
Vol 26 (16) ◽  
pp. 4871
Héctor M. Alvarez ◽  
Martín A. Hernández ◽  
Mariana P. Lanfranconi ◽  
Roxana A. Silva ◽  
María S. Villalba

Bacteria belonging to the Rhodococcus genus are frequent components of microbial communities in diverse natural environments. Some rhodococcal species exhibit the outstanding ability to produce significant amounts of triacylglycerols (TAG) (>20% of cellular dry weight) in the presence of an excess of the carbon source and limitation of the nitrogen source. For this reason, they can be considered as oleaginous microorganisms. As occurs as well in eukaryotic single-cell oil (SCO) producers, these bacteria possess specific physiological properties and molecular mechanisms that differentiate them from other microorganisms unable to synthesize TAG. In this review, we summarized several of the well-characterized molecular mechanisms that enable oleaginous rhodococci to produce significant amounts of SCO. Furthermore, we highlighted the ability of these microorganisms to degrade a wide range of carbon sources coupled to lipogenesis. The qualitative and quantitative oil production by rhodococci from diverse industrial wastes has also been included. Finally, we summarized the genetic and metabolic approaches applied to oleaginous rhodococci to improve SCO production. This review provides a comprehensive and integrating vision on the potential of oleaginous rhodococci to be considered as microbial biofactories for microbial oil production.

2021 ◽  
Vol 296 ◽  
pp. 126606
Yasmi Louhasakul ◽  
Laura Treu ◽  
Panagiotis G. Kougias ◽  
Stefano Campanaro ◽  
Benjamas Cheirsilp ◽  

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1473
Marco Castellini ◽  
Stefano Ubertini ◽  
Diego Barletta ◽  
Ilaria Baffo ◽  
Pietro Buzzini ◽  

Today one of the most interesting ways to produce biodiesel is based on the use of oleaginous microorganisms, which can accumulate microbial oil with a composition similar to vegetable oils. In this paper, we present a thermo-chemical numerical model of the yeast biodiesel production process, considering cardoon stalks as raw material. The simulation is performed subdividing the process into the following sections: steam explosion pre-treatment, enzymatic hydrolysis, lipid production, lipid extraction, and alkali-catalyzed transesterification. Numerical results show that 406.4 t of biodiesel can be produced starting from 10,000 t of lignocellulosic biomass. An economic analysis indicates a biodiesel production cost of 12.8 USD/kg, thus suggesting the need to increase the capacity plant and the lipid yield to make the project economically attractive. In this regard, a sensitivity analysis is also performed considering an ideal lipid yield of 22% and 100,000 t of lignocellulosic biomass. The biodiesel production costs related to these new scenarios are 7.88 and 5.91 USD/kg, respectively. The large capacity plant combined with a great lipid yield in the fermentation stage shows a biodiesel production cost of 3.63 USD/kg making the product competitive on the current market of biofuels by microbial oil.

Aquaculture ◽  
2021 ◽  
Vol 534 ◽  
pp. 736249
Minmin Wei ◽  
Christopher C. Parrish ◽  
Nigel I. Guerra ◽  
Roberto E. Armenta ◽  
Stefanie M. Colombo

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