scholarly journals Mixed microalgae consortia growth under higher concentration of CO2 from unfiltered coal fired flue gas: Fatty acid profiling and biodiesel production

2018 ◽  
Vol 179 ◽  
pp. 126-133 ◽  
Author(s):  
Ambreen Aslam ◽  
Skye R. Thomas-Hall ◽  
Maleeha Manzoor ◽  
Faiza Jabeen ◽  
Munawar Iqbal ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Flue Gas ◽  
Biodiesel Production ◽  
Fatty Acid Profiling

Fatty acid profiling and molecular characterization of some freshwater microalgae from India with potential for biodiesel production

2012 ◽  
Vol 29 (3) ◽  
pp. 332-344 ◽  
Author(s):  
Simrat Kaur ◽  
Manas Sarkar ◽  
Ravi B. Srivastava ◽  
Hemanta K. Gogoi ◽  
Mohan C. Kalita
Keyword(s):  
Fatty Acid ◽  
Molecular Characterization ◽  
Biodiesel Production ◽  
Freshwater Microalgae ◽  
Fatty Acid Profiling

scholarly journals Renewable Biodiesel Production from Oleaginous Yeast Biomass Using Industrial Wastes

2020 ◽  
Vol 141 ◽  
pp. 03010
Author(s):  
Sasithorn Kongruang ◽  
Sittiruk Roytrakul ◽  
Malinee Sriariyanun
Keyword(s):  
Fatty Acid ◽  
Second Generation ◽  
Carbon Sources ◽  
Morphological Characteristics ◽  
Rhodotorula Glutinis ◽  
Industrial Wastes ◽  
Biodiesel Production ◽  
Yeast Strains ◽  
Fatty Acid Profiling ◽  
Carbon Substrates

The accumulation lipid from oleaginous microorganisms is recognized as a second generation fuel. Biooil is known to as intracellular product of oily yeast utilizing various carbon substrates and converting different quantities of lipids in the form of triacylglycerols. This second generation fuel can be used to make biodiesel via a transesterification process. This study investigated the morphological characteristics of eight strains of Thai oleaginous yeasts via microscopy and analyzed the fatty acid profiling of yeasts cultured in three carbon sources: glucose, sugar cane molasses and crude glycerol in order to estimate biodiesel properties. To approach this goal, batch fermentations were used to culture eight yeast strains, Rhodosporidium toruloides TISTR 5123, TISTR 5154, TISTR 5149, Yarrowia lipolytica TISTR 5054, TISTR 5151, TISTR 5621, Rhodotorula glutinis TISTR 5159 and Rhodotorula graminis TISTR 5124 for 96 h under 30°C at 250 rpm. Result revealed that eight yeast strains contained significant amounts of fatty acids and lipids and accumulated mainly palmitic acid (C16:0), stearic acid (C18:0), oleic acid (C 18:1) and linoleic acid (C18:2), and they are suitable for the production of biodiesel. Fatty acid productions and profiles indicated that these yeast strains can be potentially used as the triacylglycerols producers for biodiesel production.

scholarly journals Prospecting for Oleaginous and Robust Chlorella spp. for Coal-Fired Flue-Gas-Mediated Biodiesel Production

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 2026 ◽  
Author(s):  
Bohwa Kim ◽  
Ramasamy Praveenkumar ◽  
Eunji Choi ◽  
Kyubock Lee ◽  
Sang Jeon ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Lipid Content ◽  
Flue Gas ◽  
Fatty Acid Methyl Esters ◽  
Methyl Esters ◽  
International Standards ◽  
Biodiesel Production ◽  
Acid Methyl ◽  
G Cell ◽  
Mixotrophic Conditions

Prospecting for robust and high-productivity strains is a strategically important step in the microalgal biodiesel process. In this study, 30 local strains of Chlorella were evaluated in photobioreactors for biodiesel production using coal-fired flue-gas. Three strains (M082, M134, and KR-1) were sequentially selected based on cell growth, lipid content, and fatty acid composition under autotrophic and mixotrophic conditions. Under autotrophic conditions, M082 and M134 showed comparable lipid contents (ca. 230 mg FAME [fatty acid methyl esters derived from microalgal lipids]/g cell) and productivities (ca. 40 mg FAME/L·d) versus a reference strain (KR-1) outdoors with actual flue-gas (CO2, 13%). Interestingly, under mixotrophic conditions, M082 demonstrated, along with maximal lipid content (397 mg FAME/g cell), good tolerance to high temperature (40 °C). Furthermore, the fatty acid methyl esters met important international standards under all of the tested culture conditions. Thus, it was concluded that M082 can be a feedstock of choice for coal-fired, flue-gas-mediated biodiesel production.

PENGARUH PELARUT KLOROFORM DALAM PEMURNIAN GLISEROL DENGAN PROSES ASIDIFIKASI ASAM KLORIDA

2016 ◽  
Vol 5 (3) ◽  
pp. 38-43
Author(s):  
Windi Monica Surbakti ◽  
Gerson Rico M.H ◽  
Mersi Suriani Sinaga
Keyword(s):  
Fatty Acid ◽  
Volume Ratio ◽  
Biodiesel Production ◽  
Extraction Time ◽  
Glycerol Concentration ◽  
Purification Process ◽  
Soap Content ◽  
Test Volume ◽  
Base Content ◽  
Water Salt

Glycerol as a byproduct of biodiesel production was approximately formed 10% of the biodiesel weight. Impurities which contained in the glycerol such as catalyst, soap, methanol, water, salt, and matter organic non glycerol (MONG) have a significant effect on the glycerol concentration. So, it is necessary to treat the impurities. The purpose of this study is to know the effect of chloroform to glycerol purification process with acidification method using hydrochloric acid as pretreatment process. This research was begun with acid addition to the glycerol to neutralize the base content and to split the soap content into free fatty acid and salt, that are more easily separated from glycerol. Then the process was continued with extraction by the solvent chloroform using the variable of test volume ratio (v/v) (1:1, 1:1.5, 1:2)  and the extraction time (20, 40, and 60 minutes). The results showed that the more volume of solvent used, gave less extraction time to produce high purity of glycerol. The highest purity produced in this study amounted to 90,9082% is obtained at the ratio of the volume solvent (v/v) 1:1 with extraction time 60 minutes.

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