Scenedesmus obliquus metabolomics: effect of photoperiods and cell growth phases

Vendruscolo, Raquel Guidetti; Fagundes, Mariane Bittencourt; Maroneze, Mariana Manzoni; Nascimento, Tatiele Casagrande do; Menezes, Cristiano Ragagnin de; Barin, Juliano Smanioto; Zepka, Leila Queiroz; Jacob‐Lopes, Eduardo; Wagner, Róger

doi:10.1007/s00449-019-02076-y

Cited by 27 publications

(18 citation statements)

References 40 publications

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“…Lipid extraction was performed according to Bligh and Dyer () and subsequent transesterification was based on the method of Hatman and Lago (), both with modifications according Reis et al (). Samples of fatty acid methyl esters (FAME) were injected (1 μl) in split mode (20:1) into a Varian 3400CX gas chromatograph (USA) as details describe by Vendruscolo et al (). FAME were identified by similarly with standard certificate (FAME Mix 37, Supelco, USA).…”

Section: Methodsmentioning

confidence: 99%

Impacts of the supplementation of açai lump flour in the diet of laying hens on productive performance, and fatty acid profiles and antioxidant capacity in the fresh and stocked eggs

Fortuoso¹,

Gebert²,

Oliveira³

et al. 2019

J Food Biochem

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The aim of this study was to evaluate whether the supplementation with açaí flour in the feed of laying hens at the end of the production cycle has beneficial effects on the health and performance of the birds and on the quality of the eggs. Groups received basal diets supplemented with 0%, 0.25%, 0.5%, 1.0%, and 2.0% açaí lump flour. We observed better productivity linked to oviposition and egg mass in a dose‐dependent manner. We also observed higher shell resistance in stored eggs and higher % albumen and peel in fresh eggs. Lower levels of lipoperoxidation were observed in fresh eggs (2.0%). In stored eggs, lipoperoxidation levels were lower in all supplemented groups. The antioxidant capacity levels in fresh or stored eggs was higher (2.0%). We also observed a higher content of monounsaturated fatty acids in the supplemented groups, whereas saturated fatty acids were lower in the egg yolks. Practical applications Based on a regression analysis, we verified that 1.47% of açaí flour is ideal in terms of productive efficiency. Dietary supplementation with açaí flour improved performance, egg quality, and had positive effects on the health of hens. Supplementation with açaí flour increased egg shelf life, reducing lipid peroxidation, biochemical reaction responsible for egg putrefaction.

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Section: Methodsmentioning

confidence: 99%

Impacts of the supplementation of açai lump flour in the diet of laying hens on productive performance, and fatty acid profiles and antioxidant capacity in the fresh and stocked eggs

Fortuoso¹,

Gebert²,

Oliveira³

et al. 2019

J Food Biochem

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“…They suggested that light intensity above 150 lmol photons m À2 s À1 inhibit the growth of microalgae but the biochemical composition did not show significant variation under different illumination conditions. Interestingly, Vendruscolo et al (2019) reported that photoperiods/light dark cycle directly affected T. obliquus growth, as well as protein, lipid and chlorophyll content. Cultivation under constant illumination was favourable to cell development and protein production, while cultivation with dark periods (12:12) induced higher lipid and chlorophyll production.…”

Section: Lightmentioning

confidence: 99%

A multidisciplinary review ofTetradesmus obliquus: a microalga suitable for large‐scale biomass production and emerging environmental applications

Oliveira

Prasad

et al. 2021

Reviews in Aquaculture

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Microalgae biomass is among one of the most promising sustainable raw materials for many industrial sectors especially biodiesel production. Although a great diversity of microalgae species has been described and isolated, few have been used for large-scale cultivation. This review presents a multidisciplinary overview of studies on Tetradesmus obliquusa freshwater microalga suitable for largescale production and emerging environmental applications. It reviews the taxonomic history of T. obliquus and its potential commercial applications, including cultivations techniques and environmental parameters, production systems, harvesting and drying of biomass, and its biochemical composition. In addition, a model refinery for T. obliquus is proposed that combines the main productive bioprocesses. Finally, a bibliometric analysis is presented and opportunities for future research with T. obliquus are identified.

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“…These results show that Scenedesmus obliquus CPCC05 can store sufficient energy to sustain cell metabolism for periods of up to 2 h uninterrupted in the dark, without affecting the biomass productivity. Comparatively, Krzemińska et al [12] evaluated the growth of Scenedesmus obliquus under the condition of 24:00 h (light: dark) operating in batch mode found lower values of biomass productivity to 6.25 mg/L h. Likewise, Vendruscolo et al [22] showed values of the 16.3 mg/L h. Besides, similar results were evidenced in cyanobacterium Aphanothece microscopica Nägeli by Jacob-Lopes [8]. This species, under different photoperiods, proved to be able to maintain its biomass productivity, growth rate and carbon dioxide fixation rate for up to 2 h in the dark.…”

Section: Resultsmentioning

confidence: 99%

Artificial lighting strategies in photobioreactors for bioenergy production by Scenedesmus obliquus CPCC05

et al. 2019

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This work aimed to evaluate the artificial lighting strategies to increase the viability of microalgae biodiesel production. Different long-term, frequency, and short photoperiods were examined. Besides, the productivities of the process, the chemical composition of the biomass, biodiesel quality, and energy balance were assessed. The results showed that Scenedesmus obliquus CPCC05 can store sufficient energy to sustain cell growth for continuous periods of up to 2 h in the dark, without affecting the productivities of the process. The values for the maximum biomass (63.88 mg/L h) and lipid (18.9 mg/L h) productivities as well for the calorific value (20.4 kJ/g) were obtained at a photoperiod of 24 t/d. It was qualitatively observed that the photoperiod significantly influenced the fatty acid profile of single-cell oil and, consequently, the quality of the produced biodiesel. Finally, the use of photoperiods also proved to be an effective strategy to improve the energy balance and reduce the environmental impact of the microalgae biodiesel production process.

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Scenedesmus obliquus metabolomics: effect of photoperiods and cell growth phases

Cited by 27 publications

References 40 publications

Impacts of the supplementation of açai lump flour in the diet of laying hens on productive performance, and fatty acid profiles and antioxidant capacity in the fresh and stocked eggs

Impacts of the supplementation of açai lump flour in the diet of laying hens on productive performance, and fatty acid profiles and antioxidant capacity in the fresh and stocked eggs

A multidisciplinary review ofTetradesmus obliquus: a microalga suitable for large‐scale biomass production and emerging environmental applications

Artificial lighting strategies in photobioreactors for bioenergy production by Scenedesmus obliquus CPCC05

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