Lipid Production From Microalgae as a Promising Candidate for Biodiesel Production

Widjaja, Arief

doi:10.7454/mst.v13i1.496

Cited by 24 publications

(27 citation statements)

References 15 publications

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“…This explained the relatively lower lipid and biodiesel contents under salt stress conditions. The data obtained in this investigation were in good agreement with results published by Widjaja (2009) who reported that the green microalga Chlorella vulgaris accumulated high lipid content when cultivated in nitrogen depletion condition (0.02 mg/l nitrate). Our results also went parallel with those obtained by Lardon et al (2009) who found that, the control of nitrogen stress during the culture and optimization of wet extraction led to maximum biodiesel production from the microalgal culture Chlorella vulgaris.…”

Section: Resultssupporting

confidence: 82%

Enhancement of biodiesel production from different species of algae

Afify¹,

Shalaby²,

Shanab³

2010

Grasas y Aceites

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RESUMENMejora de la producción de biodiesel a partir de diferentes especies de algas.Ocho especies de algas (4 Rhodo, 1 cloro y 1 macroalgas phaeophycean, 1 cianobacteria y 1 microalga verde) fueron utilizados para la producción de biodiesel utilizando dos sistemas de extracción con disolventes (hexano/éter (1:1, v/v)) y (Cloroformo / metanol (2:1, v/v)). La evaluación bioquímica de las especies de algas se llevó a cabo mediante la estimación de los porcentajes de biomasa, de lípidos, de biodiesel y de sedimento (glicerina y pigmentos). El sistema extracción con el disolvente hexano/éter (1:1, v/v) produjo una bajada de los porcentaje de lípidos (2.3-3.5% de peso seco), mientras que el sistema de extracción con el disolvente cloroformo/metanol (2:1, v/v) demostró ser más eficaz en la extracción de los lípi-dos y del biodiésel (2,5 -12,5% de peso seco) dependiendo de las especies de algas. Los extractos de microalgas verde Dictyochloropsis splendida produjeron los mayores porcentaje de lípidos y de biodiésel (12,5 y 8,75%, respectivamente), seguida de la cianobacteria Spirulina platensis (9,2 y 7,5% respectivamente). Por otra parte, las macroalgas (rojo, marrón y verde) produce los porcentajes más bajos de biodiesel (0,25 -3,8%). Los ácidos grasos del biodiesel de Dictyochloropsis splendida Geitler se determinaron mediante cromatografía de gases. La producción de lípidos, de glicerol y de biodiesel con microalga verde Dictyochloropsis splendida Geitler (el alga más prometedora) fueron notablemente mejorada cuando se aumentó la concentración de sal o en ausencia de nitrógeno, durante su cultivo, con una producción máxima (26,8, 18,9 y 7,9%, respectivamente) en ausencia de nitrógeno. PALABRAS CLAVE: Biodiesel -Glicerina -Macroalgas -Microalgas -Lípidos totales SUMMARY Enhancement of biodiesel production from different species of algae.Eight algal species (4 Rhodo, 1 chloro and 1 phaeophycean macroalgae, 1 cyanobacterium and 1 green microalga) were used for the production of biodiesel using two extraction solvent systems (Hexane/ether (1:1, v/v)) and (Chloroform/ methanol (2:1, v/v)). Biochemical evaluations of algal species were carried out by estimating biomass, lipid, biodiesel and sediment (glycerin and pigments) percentages. Hexane/ ether (1:1, v/v) extraction solvent system resulted in low lipid recoveries (2.3-3.5% dry weight) while; chloroform/methanol (2: 1, v/v) extraction solvent system was proved to be more efficient for lipid and biodiesel extraction (2.5 -12.5% dry weight) depending on algal species. The green microalga Dictyochloropsis splendida extract produced the highest lipid and biodiesel yield (12.5 and 8.75% respectively) followed by the cyanobacterium Spirulina platensis (9.2 and 7.5 % respectively). On the other hand, the macroalgae (red, brown and green) produced the lowest biodiesel yield. The fatty acids of Dictyochloropsis splendida Geitler biodiesel were determined using gas liquid chromatography. Lipids, biodiesel and glycerol production of Dictyochloropsis splendida Geitler (the promis...

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Section: Resultssupporting

confidence: 82%

Enhancement of biodiesel production from different species of algae

Afify¹,

Shalaby²,

Shanab³

2010

Grasas y Aceites

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“…Both studied Chlorella strains produced signifi cantly higher amounts of lipid when exposed to elevated CO 2 . This is consistent with the study of Widjaja [21], who reported that the lipid content of C. vulgaris increased with increasing CO 2 concentration. As microalgae form the basis of the food chain, changes in biochemical composition, including lipids, can alter their nutritional value, with consequences throughout the food chain.…”

Section: Discussionsupporting

confidence: 93%

“…Increasing atmospheric CO 2 concentration is commonly predicted to lead to changes in biochemical composition of microalgae [21,22]. Both studied Chlorella strains produced signifi cantly higher amounts of lipid when exposed to elevated CO 2 .…”

Section: Discussionmentioning

confidence: 99%

Effect of Increased CO2 And Temperature on Growth, Photosynthesis And Lipid Content of Tropical Algae

Teoh¹,

Wong²,

Phang³

2013

MJS

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Increasing temperatures causally linked with anthropogenically elevated atmospheric carbon dioxide (CO 2 ) levels characterise current 'global warming'. Very little is known about how these factors will affect tropical microalgae. The aim of this study was to investigate the CO 2 and temperature sensitivity of the photosynthetic process of two tropical Chlorella strains (Chlorella vulgaris UMACC 001 and Chlorella vulgaris UMACC 014). We grew cultures of the two strains under four conditions: (1) 28°C and 375 ppm CO 2 (control), (2) 28°C and 750 ppm CO 2 (high CO 2 ), (3) 32°C and 375 ppm CO 2 (high temperature), and (4) 32°C and 750 ppm CO 2 (combined factors). Based on specifi c growth rate (μ), both Chlorella strains grew best under the combined factors of high CO 2 level (750 ppm) and high temperature (32°C). Elevated CO 2 stimulated the production of lipid in both strains.

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“…The extraction result was then being evaporated and dissolved in an oven at a temperature of 100 ° C until a constant weight was obtained. The extra weight is expressed as the lipid weight in the material (Widjaja, 2010;Indarto, 2008). The collected data of lipid content was recorded and made a histogram.…”

Section: Lipid Content Measurementmentioning

confidence: 99%

The Lipid Content of The Culture Microalgae Using Media of Tapioca Liquid Waste

et al. 2018

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Microalga Navicula sp., Spirulina platensis, and Chlorella vulgaris have the prospect of being a source of biofuel producers. Rapid cell growth, coupled with the ability to produce large lipids and less pollution, can be used as an alternative to biofuel development. Microalgae cultivation can utilize tapioca liquid waste. Addition of NaCl to regulate salinity, so optimum for microalgae growth. In addition it can reduce toxins by binding to dissolved cyanide acid present in the waste. This study aims to determine the effect of NaCl concentration on tapioca liquid waste on growth and lipid microalgae content. This study used an experimental method with a complete random factorial design. The first factor tested three species of microalgae. The second factor tested seven NaCl concentrations on tapioca liquid waste media. The results showed that the concentration of NaCl 35% in tapioca liquid waste culture media capable of producing biomass of C. vulgaris cells with the highest lipid content. The NaCl concentration capable of producing the highest microalgae biomass from the study can be developed to design more effective and efficient tapioca industrial waste treatment without damaging the environment but more productive, as a biofuel producer.

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Lipid Production From Microalgae as a Promising Candidate for Biodiesel Production

Cited by 24 publications

References 15 publications

Enhancement of biodiesel production from different species of algae

Enhancement of biodiesel production from different species of algae

Effect of Increased CO2 And Temperature on Growth, Photosynthesis And Lipid Content of Tropical Algae

The Lipid Content of The Culture Microalgae Using Media of Tapioca Liquid Waste

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