Biorefinery of microalgae for food and fuel

Vanthoor-Koopmans, Marieke; Wijffels, René H.; Barbosa, María J.; Eppink, M.H.M.

doi:10.1016/j.biortech.2012.10.135

Cited by 438 publications

(220 citation statements)

References 55 publications

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“…Microalgal biotechnology, in recent years, has sparked great interest, initially focused on the potential use of microalgal biomass as feedstock for biofuel production and then also as a source of alternative foods and food ingredients (Vanthoor‐Koopmans et al ., 2013). For algae to become real players in the market of biofuels and food commodities, production of huge amounts of biomass at low cost is necessary.…”

Section: Introductionmentioning

confidence: 99%

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Biondi

Cheloni

Rodolfi

et al. 2017

Microbial Biotechnology

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SummaryAlgal cultures are usually co‐cultures of algae and bacteria, especially when considering outdoor mass cultivation. The influence of associated bacteria on algal culture performance has been poorly investigated, although bacteria may strongly affect biomass (or derived product) yield and quality. In this work, the influence on growth and productivity of Tetraselmis suecica F&M‐M33 of bacterial communities and single bacterial isolates from the algal phycosphere was investigated. Xenic laboratory and outdoor cultures were compared with an axenic culture in batch. The presence of the bacterial community significantly promoted culture growth. Single bacterial isolates previously found to be strictly associated with T. suecica F&M‐M33 also increased growth compared with the axenic culture, whereas loosely associated and common seawater bacteria induced variable growth responses, from positive to detrimental. The increased growth was mainly evidenced as increased algal biomass production and cell size, and occurred after exhaustion of nutrients. This finding is of interest for biofuel production from microalgae, often attained through nutrient starvation processes leading to oil or carbohydrate accumulation. As axenic T. suecica F&M‐M33 showed a similar growth with or without vitamins, the most probable mechanism behind bacterial positive influence on algal growth seems nutrient recycling.

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Section: Introductionmentioning

confidence: 99%

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Biondi

Cheloni

Rodolfi

et al. 2017

Microbial Biotechnology

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“…Algal cell walls are strong and stable due to the presence of polysaccharides such as cellulose and hemicellulose. Lysing these cells with mechanical methods is energy intensive and use of enzymes lowers energy requirement [68]. Membranes of the lipid sac are also made of phospholipids.…”

Section: Enzymatic Methodsmentioning

confidence: 99%

An Insight on Algal Cell Disruption for Biodiesel Production

Aarthy

Smita

Turkar

et al. 2018

Asian J Pharm Clin Res

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Objective: This review article deals with the effect that various cell disruption techniques have on the efficiency of lipid extraction. We have reviewed existing algal cell disruption techniques that aid the biodiesel production process.Methods: Current rise in demand for energy has led the researcher to focus on the production of sustainable fuels, among which biodiesel has received greater attention. This is due to its larger lipid content, higher growth rate, larger biomass production, and lower land use. Extraction of lipid from algae (micro and macro) for the production of biodiesel involves numerous downstream processing steps, of which cell wall disruption is a crucial step. Bead milling, high-pressure homogenization, ultra-sonication, freeze-drying, acid treatment, and enzymatic lysis are some methods of cell disruption. The cell disruption technique needs to be optimized based on the structure and biochemical composition of algae. Result:The lipid extraction efficiency varies depending on the algal species and the cell disruption technique used. Conclusion:In-depth research and development of new techniques are required to further enhance the cell disruption of the algal cell wall for the enhanced recovery of lipids. In addition, the operating costs and energy consumption should also be optimized for the cost-effective recovery.

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“…The production through fermentation is preferred because, among other advantages, the lactic acid can be produced from renewable substrates such as starchy materials (Juodeikiene et al 2015), lignocellulosic biomass (Abdel-Rahman et al 2011), food waste (Tang et al 2016), glycerol (Murakami et al 2016), microalgae (Vanthoor-Koopmans et al 2013), and sugarcane molasses . Sugarcane molasses is a potential raw material for lactic acid production.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Hybrid Short Path Evaporation to Concentrate Lactic Acid and Sugars from Fermentation

et al. 2018

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Lactic acid is an important organic compound that finds various applications in the chemical, pharmaceutical, food, and medical industries. Many of these applications require lactic acid with high purity. Hybrid short path evaporation (HSPE) is a separation process well studied in the petrochemical sector that is mainly used to obtain compounds with high purity. It is also a process offering small residence time, low pressure, and environmentally friendliness. The concentration process of lactic acid was studied by using HSPE in the presence of high total reducing sugar content remaining from sugarcane molasses fermentation. In this work, the influence of operational conditions, such as evaporator temperature (86.4 °C to 153.6 °C), internal condenser temperature (7.95 °C to 18 °C), and feed flow rate (8.27 to 21.7 mL/min), on lactic acid concentration and mass percentages were evaluated. The results showed that all variables influenced the process. Mathematical models were developed for the mass percentage and concentration of the total reducing sugar in the distilled stream and for the mass percentage at residue stream. Under the best operational conditions, the concentration of lactic acid (≈ 247.7 g/L) was 2.5 times higher than the initial fermentation broth (≈ 100.1 g/L).

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Biorefinery of microalgae for food and fuel

Cited by 438 publications

References 55 publications

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

Tetraselmis suecica F&M‐M33 growth is influenced by its associated bacteria

An Insight on Algal Cell Disruption for Biodiesel Production

Evaluation of Hybrid Short Path Evaporation to Concentrate Lactic Acid and Sugars from Fermentation

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