Alum-induced flocculation of preconcentrated Nannochloropsis salina: Residual aluminium in the biomass, FAMEs and its effects on microalgae growth upon media recycling

Rwehumbiza, Vincent M.; Harrison, Rosalyn; Thomsen, Laurenz

doi:10.1016/j.cej.2012.06.008

Cited by 109 publications

(38 citation statements)

References 52 publications

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“…Fourfold dilution of the raw DE for the preparation of the DE medium dilutes aluminum to a safe level. Furthermore, the use of an alkaline growth medium for Nannochloropsis significantly reduces the growth inhibitory effect of aluminum (Rwehumbiza et al, 2012). Manganese, in turn, was proven to be toxic to N. oculata at 182 lM (Gao et al, 2002).…”

Section: Digester Effluent As Growth Mediummentioning

confidence: 98%

Cultivation of Nannochloropsis for eicosapentaenoic acid production in wastewaters of pulp and paper industry

Полищук

Valev

Tarvainen

et al. 2015

Bioresource Technology

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Section: Digester Effluent As Growth Mediummentioning

confidence: 98%

Cultivation of Nannochloropsis for eicosapentaenoic acid production in wastewaters of pulp and paper industry

Полищук

Valev

Tarvainen

et al. 2015

Bioresource Technology

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“…Specifically, more focus is given on optimizing the use of chemicals and biomaterials or even new synthetic materials. The chemicals that are commonly used as flocculants are inorganic salts like ferric chloride and aluminium sulphate (Rwehumbiza et al, 2012;Shen et al, 2013;Şirin et al, 2013;Wyatt et al, 2012). On the other hand, bioflocculants include biopolymers like chitosan, which comes from the deactylation of chitin from crab and shrimp shells (Farid et al, 2013;Şirin et al, 2013) and poly (γ-glutamic acid), an extracellular product from Bacillus subtilis (Zheng et al, 2012).…”

Section: Harvesting Of Nannochloropsis Biomassmentioning

confidence: 99%

A biorefinery for Nannochloropsis: Induction, harvesting, and extraction of EPA-rich oil and high-value protein

Chua

Schenk

2017

Bioresource Technology

131

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Please cite this article as: Chua, E.T., Schenk, P.M., A biorefinery for Nannochloropsis: induction, harvesting, and extraction of EPA-rich oil and high-value protein, Bioresource Technology (2017), doi: http://dx.doi.org/10. 1016/ j.biortech.2017.05.124 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractMicroalgae have been studied as biofactories for almost four decades. Yet, even until today, many aspects of microalgae farming and processing are still considered exploratory because of the uniqueness of each microalgal species. Thus, it is important to develop the entire process of microalgae farming: from culturing to harvesting, and down to extracting the desired high-value products. Based on its rapid growth and high oil productivities, Nannochloropsis sp. is of particular interest to many industries for the production of highvalue oil containing omega-3 fatty acids, specifically eicosapentaenoic acid (EPA), but also several other products. This review compares the various techniques for induction, harvesting, and extraction of EPA-rich oil and high-value protein explored by academia and industry to develop a multi-product Nannochloropsis biorefinery. Knowledge gaps and opportunities are discussed for culturing and inducing fatty acid biosynthesis, biomass harvesting, and extracting EPA-rich oil and high-value protein from the biomass of Nannochloropsis sp.

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“…This is important when microalgal biomass is used in a biorefinery context where part of the biomass is used to generate energy (e.g., lipids), and other biomass fractions are used as animal feed (e.g., protein fraction) or high-value ingredients for the food or health industry (e.g., carotenoids) . Rwehumbiza et al (2012) showed that aluminum added during alum-based flocculation did not contaminate lipids and fatty acid methyl esters, but it might remain in the protein fraction. Contamination of the biomass with flocculants may also influence the recovery efficiency of certain bioproducts.…”

Section: Contamination Of the Biomass By Flocculantsmentioning

confidence: 98%

Harvesting of Microalgae by Means of Flocculation

Muylaert

Vandamme

Foubert

et al. 2015

Biofuel and Biorefinery Technologies

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Large-scale production of microalgae for biofuels is still facing several major challenges to become competitive with other forms of renewable and nonrenewable energy. A major challenge is harvesting, which requires the separation of a low amount of biomass consisting of small individual cells from a large volume of culture medium. Flocculation is seen as a promising low-cost harvesting method for microalgae biomass. In this chapter, the challenges and potential advantages of using flocculation as a harvesting method for microalgae are reviewed.

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Alum-induced flocculation of preconcentrated Nannochloropsis salina: Residual aluminium in the biomass, FAMEs and its effects on microalgae growth upon media recycling

Cited by 109 publications

References 52 publications

Cultivation of Nannochloropsis for eicosapentaenoic acid production in wastewaters of pulp and paper industry

Cultivation of Nannochloropsis for eicosapentaenoic acid production in wastewaters of pulp and paper industry

A biorefinery for Nannochloropsis: Induction, harvesting, and extraction of EPA-rich oil and high-value protein

Harvesting of Microalgae by Means of Flocculation

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