Alga-Based Biodiesel Production and Optimization Using Sugar Cane as the Feedstock

Cheng, Yun; Lü, Yue; Gao, Chunfang; Wu, Qingyu

doi:10.1021/ef9003818

Cited by 103 publications

(52 citation statements)

References 18 publications

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“…Many reports have shown that photoautotrophic and heterotrophic culture conditions result in different biomass and lipid yields for the same microalga strain (Xu et al 2006;Cheng et al 2009). Chlorella emersonii and C. protothecoides gave the highest average lipid and biomass yield among many strains of microalgae tested (Suali and Sarbatly 2012).…”

Section: Microalgae With Heterotrophic Metabolismmentioning

confidence: 99%

Potentials of Exploiting Heterotrophic Metabolism for Biodiesel Oil Production by Microalgae

Ogbonna

Moheimani

2015

Biofuel and Biorefinery Technologies

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The current prices of microalgae oils are much higher than oils from higher plants (vegetable oils) mainly due to the high cost of photoautotrophic cultivation of microalgae. However, many strains of microalgae can also grow and produce oil using organic carbons, as the carbon source under dark (heterotrophy) or light conditions (mixotrophy). Lipid productivities of most strains of microalgae are higher in culture systems that incorporate heterotrophic metabolisms (presence of organic carbon source) than under photoautotrophic conditions. This is because for many strains, cell growth rates and final cell concentrations are higher in heterotrophic cultures than in photoautotrophic cultures. Furthermore, in some cases, the oil contents of the cells are also higher in cultures incorporating heterotrophic metabolisms. It has also been reported for some strains that the quality of oil produced in the presence of organic carbon sources are more suitable for biodiesel oil production than those produced under photoautotrophic conditions. Thus, heterotrophy can be used to reduce the cost of biodiesel oil production, but the effectiveness of the various organic carbons in supporting cell growth and oil accumulation depends on the strain and other culture conditions. Use of wastewaters for cultivation of microalgae can further substantially reduce the cost of production (since they contain carbon, nitrogen, and other nutrients) and also reduce the requirement for freshwater. Generally, many factors such as nitrogen limitation, phosphate limitation, silicon limitation, control of pH, and low temperature can be used to increase oil accumulation, although their effectiveness depends on the strain and other culture conditions.

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Section: Microalgae With Heterotrophic Metabolismmentioning

confidence: 99%

Potentials of Exploiting Heterotrophic Metabolism for Biodiesel Oil Production by Microalgae

Ogbonna

Moheimani

2015

Biofuel and Biorefinery Technologies

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“…Available online 30 October 2014 high latitudes. However, the addition of organic carbon to the culture medium could significantly impact the operational cost, constituting between 35% and 80% of the medium price depending on the choice of carbon source (Cheng et al 2009;X. Li et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Utilization of biodiesel-derived glycerol or xylose for increased growth and lipid production by indigenous microalgae

Leite

Paranjape

Abdelaziz

et al. 2015

Bioresource Technology

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The use of industrial wastes rich in mineral nutrients and carbon sources to increase the final microalgal biomass and lipid yield at a low cost is an important strategy to make algal biofuel technology viable. Using strains from the microalgal collection of the Université de Montréal, this report shows for the first time that microalgal strains can be grown on xylose, the major carbon source found in wastewater streams from pulp and paper industries, with an increase in growth rate of 2.8 fold in comparison to photoautotrophic growth, reaching up to µ=1.1/day. On glycerol, growth rates reached as high as µ=1.52/day. Lipid productivity increased up to 370% on glycerol and 180% on xylose for the strain LB1H10, showing the suitability of this strain for further development for biofuels production through mixotrophic cultivation.Final Version available online at: http://dx

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“…From this, comes the need for effective options to replace these fuels with viable alternatives that are renewable, clean, inexpensive and sustainable. Several plant-based materials have been tested, including corn, soy, canola and palm oil, among others (Chisti 2007, Cheng et al 2009). …”

Section: Introductionmentioning

confidence: 99%

Influence of temperature and nutrient content on lipid production in freshwater microalgae cultures

Bohnenberger

Crossetti

2014

An. Acad. Bras. Ciênc.

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The production of biomass by microalgae is considered a clean alternative compared to other plant crops that require large areas for cultivation and that generate environmental impacts. This study evaluated the influence of temperature and nutrients on lipid contents of cultured species of freshwater microalgae, with a view toward using these lipids for biodiesel production. Two strains of Monoraphidium contortum, a culture containing Chlorella vulgaris and Desmodesmus quadricauda and another strain of Microcystis aeruginosa were maintained in the laboratory for six days, in five culture media: modified ASM-1 (control, with high concentrations of phosphate and nitrate; phosphorus-deficient; non-limiting phosphate; nitrogendeficient; and non-limiting nitrate). The cultures were then exposed to temperatures of 13°C, 25°C (control) and 37°C for eight days (n=3). Lipids were extracted by the cold-solvent (methanol and chloroform) method. On average, the highest total lipid yields were observed when the strains were maintained at 13°C and in the non-limiting nitrate medium. The lipid percentage varied depending on the concentration of algal biomass. This study showed that manipulation of controlling factors can increase the lipid concentration, optimizing the total production in order to use this raw material for biodiesel.

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Alga-Based Biodiesel Production and Optimization Using Sugar Cane as the Feedstock

Cited by 103 publications

References 18 publications

Potentials of Exploiting Heterotrophic Metabolism for Biodiesel Oil Production by Microalgae

Potentials of Exploiting Heterotrophic Metabolism for Biodiesel Oil Production by Microalgae

Utilization of biodiesel-derived glycerol or xylose for increased growth and lipid production by indigenous microalgae

Influence of temperature and nutrient content on lipid production in freshwater microalgae cultures

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