Effective extraction of microalgae lipids from wet biomass for biodiesel production

Taher, Hanifa; Al‐Zuhair, Sulaiman; Al‐Marzouqi, Ali H.; Haik, Yousef; Farid, Mohammed

doi:10.1016/j.biombioe.2014.02.034

Cited by 195 publications

(93 citation statements)

References 38 publications

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“…Palmitic acid is the second highest acid in accounting for around 20% followed by myristic and stearic acids. The results found in this work were in agreement with previous results on date pits [10] [14] and other potentials biodiesel feed stocks, such as microalgae lipids [15]. …”

Section: Date-pits Oil Extraction Yield and Profilesupporting

confidence: 92%

Biodiesel Production from Oils Extracted from Date Pits

Al‐Zuhair¹,

Taher²,

Dhaheri³

et al. 2017

GSC

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Biodiesel production had received a considerable attention as a green, nontoxic and renewable alternative to petroleum diesel. To avoid using vegetable oils, which are expensive and compete with food, as feedstock, waste oils have been proposed. However, these waste materials contain a large amount of free fatty acids that complicates the production process. In this work, biodiesel production using an alternative feedstock; namely oils from date-pits, has been investigated. These oils have the same favorable features of straight oils, and at the same time are considered waste, since they are extracted from a waste material. The yield of oils extracted using n-hexane in a Soxhlet apparatus was compared to that of oils extracted using methanol-chloroform solvent mixture. The extracted oils were then converted to biodiesel via transesterification with methanol in presence of Novozym ® 435 or Eversa ® Transform.The highest oils extraction yield of 11.7%, per dry weight sample, was obtained using Soxhlet extraction apparatus compared to 8.9% using methanol-chloroform mixture. The highest biodiesel production yield was 30% of the oil used, achieved after 6 hours using Novozym ® 435 at 40˚C, 5:1 methanol to oil molar ratio and 10wt% enzyme loading. By using a chemical alkaline catalyst, NaOH, at the same conditions, the yield was 27%.

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Section: Date-pits Oil Extraction Yield and Profilesupporting

confidence: 92%

Biodiesel Production from Oils Extracted from Date Pits

Al‐Zuhair¹,

Taher²,

Dhaheri³

et al. 2017

GSC

Self Cite

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“…The drying conditions may affect the quality of the product and to cause lipid oxidation [6], resulting in changes in the fatty acids profiles of microalgae [7]. The drying of Spirulina sp.…”

Section: Introductionmentioning

confidence: 99%

Production of lipids from microalgae Spirulina sp.: Influence of drying, cell disruption and extraction methods

Pohndorf

Camara

Larrosa

et al. 2016

Biomass and Bioenergy

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a b s t r a c tThe pretreatment operations (drying, cell disruption and oil extraction) of microalgae biomass to the lipids extraction are important steps to the product quality and production cost. In this study, the lipids from Spirulina were obtained by different methods of biomass drying (tray and spouted bed), cell disruption (microwave, autoclaving and milling) and solvent extraction (hot and cold). The average content of lipids extracted by the cold method, using polar solvents, was of 5.8 ± 0.6 g 100 g À1 . The spouted bed drying with cell disruption by milling achieved the best performance with the hot extraction method. Under these conditions, the TBA value was of 0.57 ± 0.09 mg MDA kg À1 . FT-IR spectra and thermal analysis indicated that the hot extraction resulted in a more purified lipid extract than the cold extraction. The Brimberg model showed the best fit to the lipid extraction kinetics and the activation energy in the best conditions was of 6.11 ± 1.41 kJ mol À1 .

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“…The strain was able to increase its biomass productivity in the first stage with almost constant lipid content. In the second stage, the lipid content was enhanced by six-fold after three weeks of nitrogen starvation, but with lower biomass productivity (Taher et al, 2014). Jones (2012) reported that 2-ethoxyethanol (2-EE) was more effective at extracting lipids from wet biomass rather than dried algal pellets (Jones et al, 2012).…”

Section: Best Outputs Of Different Studiesmentioning

confidence: 99%

Isolation Purification and Culturing of Cyanobacteria and Microalgae towards Biodiesel Production: Current Status

Hossain¹,

Ratnayake²,

Kumara³

2016

AJBB

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The experimental design and techniques for biofuel production from different feedstock varies depending on geographical region, water sources (fresh water, sea water, waste water or brackish water) and overall, available species variations. Also the sampling, culture conditions, isolation, purification of cultures, harvesting, fatty acid extraction followed by conversion of extracted lipids to biofuel followed different methods in different studies. Therefore, it is a demand to simplify the techniques, improve the methods, and develop the efficiencies with less laborious inputs but rapid and best outcomes. Biofuel production research should focus not only selecting suitable biomass or obtaining high yield of lipids but also look for economically feasible method along with sufficient and continuous supply of biomass. Considering these, cyanobacteria and microalgae creates a great potential for biofuel production. In this review, we focused on compiling different materials and methods used for different studies and their best outputs towards biofuel production from cyanobacteria and micro-algae.

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Effective extraction of microalgae lipids from wet biomass for biodiesel production

Cited by 195 publications

References 38 publications

Biodiesel Production from Oils Extracted from Date Pits

Biodiesel Production from Oils Extracted from Date Pits

Production of lipids from microalgae Spirulina sp.: Influence of drying, cell disruption and extraction methods

Isolation Purification and Culturing of Cyanobacteria and Microalgae towards Biodiesel Production: Current Status

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