Biorefinery concept in a microalgae pilot plant. Culturing, dynamic filtration and steam explosion fractionation

Nurra, Claudia; Torras, Carles; Clavero, Ester; Ríos, Sergio D.; Rey, María; Lorente, E.; Farriol, Xavier; Salvadó, Joan

doi:10.1016/j.biortech.2014.04.009

Cited by 54 publications

(24 citation statements)

References 24 publications

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“…During this treatment, material is exposed to steam at temperatures >180°C and at a certain pressure for several minutes, then subjected to sudden depressurisation to normal atmospheric pressure. This sudden depressurisation disrupts the cell wall so that smaller molecular compounds are released from the cells (Nurra et al, 2014;Cheng et al, 2015). SE has some important advantages, such as low use of energy, no chemical additives and little pollution of the environment (Alvira et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Response surface methodology for optimisation of soluble dietary fibre extraction from sweet potato residue modified by steam explosion

Wang

Liang

Ran

et al. 2017

Int J of Food Sci Tech

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Summary To make better use of sweet potato residue (SPR), a new pretreatment method, steam explosion (SE), can increase its content of soluble dietary fibre (SDF). Response surface methodology (RSM) was used to determine the SE variables for optimum SDF yield. The optimal conditions were a steam pressure of 0.35 MPa, a residence time of 121 s and a sieving mesh size 60. Under the optimised conditions, the content of SDF from SPR reached 22.59 ± 0.35%, an increase of 18.78% compared with that (3.81 ± 0.62%) from untreated SPR. The water‐holding capacity, oil‐holding capacity (OHC) and swelling capacity of SDF were improved by SE. Scanning electron micrograph (SEM) images demonstrated that SDF had become poriferous, loose and dilatants after SE treatment. This technology provides an efficient process for increasing the industrial production of SDF from SPR.

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Section: Introductionmentioning

confidence: 99%

Response surface methodology for optimisation of soluble dietary fibre extraction from sweet potato residue modified by steam explosion

Wang

Liang

Ran

et al. 2017

Int J of Food Sci Tech

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“…Therefore, compensative artificial light source is necessary and important when the solar light intensity decreased to a value that could not Table 3 PredictedEstimated properties of biodiesel based on fatty acid profiles from eight green algal oils in 5 L flasks outdoors using tap water. , which is higher than most of the oil-rich microalgae recorded in the literatures Nurra et al, 2014).…”

mentioning

confidence: 58%

Selection of microalgae for biodiesel production in a scalable outdoor photobioreactor in north China

Xia

Song

et al. 2014

Bioresource Technology

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“…This is the case of the pilot plant located in Tarragona (Spain), which consists of six photobioreactors operating in batch mode for cultivation of Nannochloropsis gaditana for the extraction of lipids [179]. In Brazil, the Petrobras research center launched a pilot plant in 2009 to produce biodiesel from microalgae.…”

Section: Microalgae Biorefinery As An Integral Systemmentioning

confidence: 99%

Microalgae biorefineries: applications and emerging technologies

Giraldo

Romo-Buchelly

Arbeláez-Pérez

et al. 2018

DYNA

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Microalgae transform CO2 into a broad portfolio of biomolecules, and thus should be considered as a valuable biotechnological platform. Despite several research programs and global efforts to establish a sustainable microalgae-based industry, most applications have not transcended academic boundaries. This limitation raises from the high transformation costs when target products are biofuels or fertilizers. Microalgae biorefinery emerges as an alternative to improve economic competitiveness, as Under such a model scope, the process inputs come from industrial waste, while biomass exploitation prioritizes the highest value molecules followed by extraction of less valuable compounds. This review describes a wide range of microalgae exploitation schemes focused on new uses of its constituents, while discussing emerging technologies designed to improve production and efficiencies as well.Keywords: microalgae; biorefinery; biofuels; fertilizers; active biomolecules. Biorefinerías de microalgas: aplicaciones actuales y nuevas tecnologías en desarrolloResumen Las microalgas transforman el CO2 en un amplio portafolio de biomoléculas, por lo cual, son consideradas una valiosa plataforma biotecnológica. A pesar de múltiples programas de investigación y esfuerzos globales para establecer una industria sostenible basada en microalgas, la mayoría de las aplicaciones potenciales no han trascendido las fronteras académicas. Esta limitación se debe a los altos costos en la transformación del producto principalmente cuando se obtiene compuestos económicos como biocombustibles y fertilizantes. La biorefinería de microalgas surge como alternativa para incrementar la competitividad económica. En este modelo, los insumos del proceso provienen de residuos industriales, mientras que la explotación de la biomasa inicia con las moléculas de alto valor y finaliza con los compuestos menos valiosos. En esta revisión se describe un amplio abanico de esquemas de explotación de microalgas enfocado en nuevos usos de sus constituyentes. Además, se exploran las tecnologías emergentes destinadas a aprovechar esta biomasa de una manera más versátil y eficiente.

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Biorefinery concept in a microalgae pilot plant. Culturing, dynamic filtration and steam explosion fractionation

Cited by 54 publications

References 24 publications

Response surface methodology for optimisation of soluble dietary fibre extraction from sweet potato residue modified by steam explosion

Response surface methodology for optimisation of soluble dietary fibre extraction from sweet potato residue modified by steam explosion

Selection of microalgae for biodiesel production in a scalable outdoor photobioreactor in north China

Microalgae biorefineries: applications and emerging technologies

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