Impact of light quality on biomass production and fatty acid content in the microalga Chlorella vulgaris

Hultberg, Malin; Jönsson, Helene Larsson; Bergstrand, Karl-Johan; Carlsson, Anders S.

doi:10.1016/j.biortech.2014.03.092

Cited by 85 publications

(48 citation statements)

References 16 publications

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“…Living or immobilized algal biomass has been confirmed to have high capability as a low-cost bioremediation technology for pesticides bioremoval, since these techniques are more sustainable and might encourage the use of microalgae for pesticides bioremediation [34]. The extremely high accumulation capacity of some microalgae for potentially dangerous substances has been also exploited for bioremediation techniques for water [35,36].…”

Section: Discussionmentioning

confidence: 99%

Biosorption Potential of the Microchlorophyte Chlorella vulgaris for Some Pesticides

Hussein¹,

Abdullah²,

Din³

et al. 2017

J Fertil Pestic

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Nowadays, pollution of either surface or ground water with pesticides is considered as one of the greatest challenges facing Humanity and being a national consideration in Egypt. Agricultural activities are the point source of pesticides that polluting water bodies. The present study investigated the potentiality of Chlorella vulgaris for bioremoval of pesticides mixture of 0.1 mg/mL for each component (Atrazine, Molinate, Simazine, Isoproturon, Propanil, Carbofuran, Dimethoate, Pendimethalin, Metoalcholar, Pyriproxin) either as free cells or immobilized in alginate. Two main experiments were conducted including short-term study having 60 min contact time using fresh free and lyophilized cells and other long-term study having five days incubation period using free and immobilized cells. In the short-term study, the presence of living cells led to bioremoval percentage ranged from 86 to 89 and the lyophilized algal biomass achieved bioremoval ranged from 96% to 99%. In long-term study, the presence of growing algae resulted in pesticides bioremoval ranged from 87% to 96.5%. The main mechanism behind the removal of pesticides in water phase is proposed to be biosorption onto the algal cells. This conclusion is based on the short duration required for removal to occur. The obtained results encourage using microalgae in bioremediation of pesticides polluted water.Citation: Hussein MH, Abdullah AM, Din NIBE, Mishaqa ESI (2017) Biosorption Potential of the Microchlorophyte Chlorella vulgaris for Some Pesticides.

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Section: Discussionmentioning

confidence: 99%

Biosorption Potential of the Microchlorophyte Chlorella vulgaris for Some Pesticides

Hussein¹,

Abdullah²,

Din³

et al. 2017

J Fertil Pestic

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“…Microalgae biomasses can also be rich in proteins, lipids and carbohydrates (Borowitzka, 1992;Markou & Nerantzis, 2013;Metting & Pyne, 1986;Pancha et al, 2014). Microalgae lipids contain important polyunsaturated fatty acids, such as linoleic acid (LA), α-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Hultberg et al, 2014;Markou & Nerantzis, 2013). All-trans-lutein (xanthophyll) and all-trans-β-carotene are among the major carotenoids found in microalgae biomass (Rodrigues et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis

et al. 2017

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The interest in microalga as a food supplement has grown due their high contents of carotenoids, polyunsaturated fatty acids and proteins. This study evaluated the effect of different temperatures (22, 27 or 32 °C) and sodium nitrate concentrations (12, 24, 36, 48 or 60 mg L -1 of N-ND 3 ) in culture medium on Heterochlorella luteoviridis biomass production and composition. The highest biomass concentration (3.35 g L -1) was observed at the highest N-ND 3 concentration. The N-ND 3 concentration positively affected protein, carbohydrate and carotenoids contents of biomass. Dn the other hand, cells cultured at the lowest N-ND 3 concentration showed a slight increment in lipid content. The major carotenoid was lutein (30.7 ± 1.4% of total carotenoids), and the polyunsaturated fatty acids were 37 ± 2% of total fatty acids. Low temperature improved the biosynthesis of ω3 type fatty acids by lowering the ω6:ω3 ratio. Dverall, our results indicate H. luteoviridis can yield high biomass concentration under autotrophic growth, resulting in a biomass rich in carotenoids, mainly lutein, and ω3 polyunsaturated fatty acids.Keywords: nitrogen; temperature; lipids; omega-3; carotenoids; microalga.Practical Application: Microalgae can be used as food supplement and is a vegan source of omega-3 fatty acids.

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“…Wang et al, 2007 showed that in their study the lowest growth rates were obtained with blue LED light while the highest rates was obtained with red LED light. Another study performed by Hultberg et al, (2014), showed that yellow, red and white lights were effective on Chlorella vulgaris culture from 6 different wavelengths (Yellow, red, blue, green, white and purple). Red light is important for growth of the Chlorella vulgaris.…”

Section: Discussionmentioning

confidence: 99%

Effect of LED Light Color on Growth Rates and Pigments Compositions of Tetraselmis chuii and Chlorella sp

Pirinç¹,

Durmaz²

2017

Journal of Anatolian Environmental and Animal Sciences

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In this study, growth rates and pigments of Tetraselmis chuii and marine Chlorella sp. species were examined in different color LED lamps (yellow LED, white LED, blue-red LED). As a result of experiment, highest cell densities were measured with yellow LED light for Tetraselmis chuii as 412x10 4 cell/ml and marine Chlorella spas715x10 4 cell/ml. Also, highest β-carotene amounts were measured with yellow LED light for Tetraselmis chuii and marine Chlorella sp. as 1.07 µg/ml, 0.25 µg/ml respectively Renkli LED Işıkların Tetraselmis chuii ve Deniz Chlorella sp.'nin Büyüme Hızı ve β-karoten Miktarları Üzerine Etkisi * Öz: Bu çalışmada, Tetraselmis chuii ve denizel Chlorella sp. türlerinin, farklı renkli LED lambalarında (sarı LED, beyaz LED, mavi-kırmızı LED) kültürü yapılarak büyüme ve pigment oranları araştırılmıştır. Deney sonucunda, en yüksek hücre yoğunlukları, Tetraselmis chuii için 412x10 4 hücre/ml ve denizel Chlorella sp. için 715x10 4 hücre/ml olarak sarı LED ışıkta yapılan kültürlerde ölçülmüştür. En yüksek β-karoten miktarları da yine sarı LED ışıkta yapılan kültürlerde Tetraselmis chuii ve denizel Chlorella sp. için sırasıyla 1.07 µg/ml, 0.25 µg/ml olarak bulunmuştur. Anahtar sözcükler: Tetraselmis chuii, Denizel Chlorella sp., Işık, Pigment, β-karoten. * Bu makale Pınar PİRİNÇ'in Doktora tezinden üretilmiştir.

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Impact of light quality on biomass production and fatty acid content in the microalga Chlorella vulgaris

Cited by 85 publications

References 16 publications

Biosorption Potential of the Microchlorophyte Chlorella vulgaris for Some Pesticides

Biosorption Potential of the Microchlorophyte Chlorella vulgaris for Some Pesticides

Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis

Effect of LED Light Color on Growth Rates and Pigments Compositions of Tetraselmis chuii and Chlorella sp

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