Production of biodiesel from freshwater microalgae and evaluation of fuel properties based on fatty acid methyl ester profile

Sinha, Swapan Kumar; Gupta, Arghyadeep; Bharalee, Raju

doi:10.1080/17597269.2015.1118781

Cited by 52 publications

(7 citation statements)

References 34 publications

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“…Although NEIST BT-2 yielded a high biomass, only a moderate amount of total lipid, i.e., 19.17% of dry cell weight was accumulated by it. Low lipid content of 4.65% and 19.47% w/w in Chlorella sorokiniana was also reported by Sinha et al (2016) and Eladel et al (2018), respectively. The highest amount of total, as well as neutral lipid (31.56% and, 260.29 a.u., respectively), was accumulated by NEIST BT-A6.…”

Section: Number Of Daysmentioning

confidence: 55%

Morpho-taxonomic, genetic, and biochemical characterization of freshwater microalgae as potential biodiesel feedstock

et al. 2019

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In the present study, seven axenic fresh water microchlorophytes were isolated and identified as Tetradesmus dimorphus (NEIST BT-1), Chlorella sorokiniana (NEIST BT-2), Desmodesmus sp. (NEIST BT-10), Selenastrum sp. (NEIST BT-A6), Tetradesmus obliquus (NEIST BT-A1), Tetradesmus sp. (NEIST BT-A10), and Asterarcys sp. (NEIST BT-A15) based on morphological and molecular characterization. Their potential to be used as biodiesel feedstock was evaluated depending on their growth characteristics and lipid profiles. Among the seven isolates, NEIST BT-2 was found to be the most promising candidate owing to its high biomass yield (2.09 ± 0.037 g L −1) and lipid productivity (107.60 ± 10.175 mg L −1 day −1). The gas chromatography analysis confirmed the presence of significant amounts of palmitic acid, linoleic acid, linolenic acid, and oleic acid in the isolate which are some of the major constituents of any biodiesel. The predictive models showed that the biodiesel from this isolate has ideal fuel properties which comply with the ASTM D6751 and EN 14214 specifications. These findings demonstrate that NEIST BT-2 can be used as a prospective candidate for consideration of large-scale biodiesel production.

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Section: Number Of Daysmentioning

confidence: 55%

Morpho-taxonomic, genetic, and biochemical characterization of freshwater microalgae as potential biodiesel feedstock

et al. 2019

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“…Fuel properties of biodiesel obtained from Chlorella spp. were examined with the help of following equations (Sinha et al 2016 ) where N is the percentage of each fatty acid, M W is the molecular mass of fatty acid, M i is the molecular mass of i th fatty acid, D is the number of double bonds, MUFA is monounsaturated fatty acids, PUFA is polyunsaturated fatty acid, CFPP is cold filter pluging point, OS oxidation stability, CP cloud point, PP pour point, X is the percentage of linoleic and linolenic acids (wt %) and HHV is the calorific value of FAME in MJ/Kg.…”

Section: Materials and Methodologymentioning

confidence: 99%

Impact of various media and organic carbon sources on biofuel production potential from Chlorella spp.

et al. 2016

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In this study, five Chlorella species (Chlorella vulgaris, Chlorella minutissima, Chlorella pyrenoidosa, Chlorella sp.1 and Chlorella sp.2) were grown in various nutrient medium including BG-11, BBM, Fog’s medium and M4N medium for the evolution of biomass and lipid production potential. Among the tested medium, BG-11 was found most economical and efficient medium for all Chlorella species. To see the impact of organic carbon sources on lipid production potential, all microalgae species were also cultured in selected medium (BG-11) with different organic carbon sources like glucose, glycerol, sodium acetate, and sucrose under mixotrophic condition. The results showed that all Chlorella species performs better under mixotrophic condition, but Chlorella vulgaris achieved maximum lipid productivity (3.5 folds higher) in glycerol supplemented culture medium than control medium among all species.Electronic supplementary materialThe online version of this article (doi:10.1007/s13205-016-0434-6) contains supplementary material, which is available to authorized users.

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“…1-3 show that the calcination leads to deposition of K 2 CO 3 on ZnO. It can be seen that calcination process of K 2 CO 3 /ZnO is better at 600 °C as [11][12][13]. Both the algae oil and algae biodiesel showed low ash content (approximately 0 %).…”

Section: Preparation Of Algae Biodieselmentioning

confidence: 97%

Transesterification of Algae Oil using K2CO3/ZnO Heterogeneous Base Catalyst

et al. 2019

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The objective of the present work was to develop a heterogeneous base catalyst K2CO3/ZnO for transesterification of algae oil. This catalyst was prepared by wet impregnation method calcinated at high temperature of 600 °C. The catalyst was characterized by X-ray diffraction technique. The crude algae oil was degummed and its free fatty acid was reduced to 2 % by methanol treatment. Methanol was used to convert triglycerides to biodiesel using K2CO3/ZnO. The doping of 30 % K2CO3 on ZnO calcined at 600 °C was studied on biodiesel yield. The reaction parameters such as temperature, stirring rate, amount of catalyst, methanol to oil molar ratio on the yield of fatty acid methyl ester were investigated. Highest yield was obtained for 7 % catalyst, 9:1 methanol to molar ratio at 80 °C for 30 % K2CO3/ZnO. This study proved that the catalyst loading less than 5 % was unsuccessful in biodiesel yield. The physio-chemical properties of the produced algae biodiesel was determined as per ASTM test procedures.

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Production of biodiesel from freshwater microalgae and evaluation of fuel properties based on fatty acid methyl ester profile

Cited by 52 publications

References 34 publications

Morpho-taxonomic, genetic, and biochemical characterization of freshwater microalgae as potential biodiesel feedstock

Morpho-taxonomic, genetic, and biochemical characterization of freshwater microalgae as potential biodiesel feedstock

Impact of various media and organic carbon sources on biofuel production potential from Chlorella spp.

Transesterification of Algae Oil using K2CO3/ZnO Heterogeneous Base Catalyst

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