Lipid content and fatty acid profile of Nannochloropsis oculata before and after extraction with conventional solvents and/or compressed fluids

Baumgardt, F.; Filho, Arion Zandoná; Brandalize, Marcus V.; Costa, Dayane Cristina da; Filho, Nelson Roberto Antoniosi; Abreu, Paulo César; Corazza, Marcos L.; Ramos, Luiz Pereira

doi:10.1016/j.supflu.2015.11.003

Cited by 31 publications

(7 citation statements)

References 31 publications

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“…After cell disruption and lipid release, the cell debris is separated by techniques like filtration and centrifugation and the lipids are removed from the extraction solvent by techniques such as distillation and evaporation (Halim et al 2012 ). Organic solvents or supercritical fluid are mostly used in lipid extraction techniques (Table 5 ) (Li et al 2014 ; Baumgardt et al 2016 ; Khoo et al 2020 ). Direct transesterification into fatty acids is an emerging technique incorporating lipid extraction and transesterification in a single process (Fig.…”

Section: Production Of Lipids By Microalgaementioning

confidence: 99%

Production of microalgae with high lipid content and their potential as sources of nutraceuticals

et al. 2022

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In the current global scenario, the world is under a serious dilemma due to the increasing human population, industrialization, and urbanization. The ever-increasing need for fuels and increasing nutritional problems have made a serious concern on the demand for nutrients and renewable and eco-friendly fuel sources. Currently, the use of fossil fuels is creating ecological and economic problems. Microalgae have been considered as a promising candidate for high-value metabolites and alternative renewable energy sources. Microalgae offer several advantages such as rapid growth rate, efficient land utilization, carbon dioxide sequestration, ability to cultivate in wastewater, and most importantly, they do not participate in the food crop versus energy crop dilemma or debate. An efficient microalgal biorefinery system for the production of lipids and subsequent byproduct for nutraceutical applications could well satisfy the need. But, the current microalgal cultivation systems for the production of lipids and nutraceuticals do not offer techno-economic feasibility together with energy and environmental sustainability. This review article has its main focus on the production of lipids and nutraceuticals from microalgae, covering the current strategies used for lipid production and the major high-value metabolites from microalgae and their nutraceutical importance. This review also provides insights on the future strategies for enhanced microalgal lipid production and subsequent utilization of microalgal biomass. Graphical abstract

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Section: Production Of Lipids By Microalgaementioning

confidence: 99%

Production of microalgae with high lipid content and their potential as sources of nutraceuticals

et al. 2022

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“…A composição química em ácidos graxos do OP foi determinada de acordo com o método desenvolvido por Hartman e Lago adaptado para microescala. [18][19][20] Em um procedimento típico, cerca de 0,2 g de amostra foram transferidas para um tubo de ensaio e saponificadas com 3,0 mL de uma solução 0,5 mol L -1 de hidróxido de sódio em metanol. Os tubos de ensaio foram então vedados e mantidos em banho-maria a 90 °C por 10 min.…”

Section: Métodosunclassified

Preliminary Studies of Palm Oil Glycerolysis Catalysed by Nanostructured Oxides Obtained by Calcination of Layered Double Hydroxides

Cordeiro

Sikora

2019

Rev. Virtual Quim.

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Monoacylglycerols are nonionic surfactants traditionally produced from the glycerolysis of vegetable oils using alkaline catalysts in homogeneous medium and high temperatures, resulting in materials contaminated with soaps and with a bitter taste. In this work, the nanostructured oxides obtained by calcination of the layered double hydroxide Mg2Al-CO3 were used as catalysts in the glycerolysis of palm oil. It was possible to obtain a mixture of acylglycerols with similar chemical composition as obtained industrially by the traditional method when the experiments were conducted at 175 °C, with molar ratio glycerol:palm oil 2:1, for 2 h with 5 % catalyst (m m-1). The nanostructured oxides were characterized by X-ray diffraction and Fourier transform infrared spectroscopy before and after the use as catalyst, and no structural changes were detected after the reactions. However, a small decrease in the conversion to mono and diacylglycerols was observed after the catalysts reuse experiments.

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“…Ácidos graxos (AG) de origem vegetal de natureza insaturada como oleico (C18:1n6c), linoleico, (C18:2n6c) e α e g-linolênico (C18:3n6) são importantes para as indústria dos alimentos visando a obtenção de compostos tipo ômega (ω-3, 6 e 9) para suplementos alimentares funcionais e nutracêuticos [30,31] (oleico) apresentam uma serie de propriedades anti -inflamatórias, antitrombóticas, antiarrítmicos, vasodilatadores e precursor de ácidos graxos de cadeia longa. Esses efeitos benéficos foram demonstrados na prevenção de doenças cardíacas, da hipertensão, do diabete tipo 2, da artrite reumatoide entre outras quando são utilizados em alimentos funcionais e nutracêuticos [33].…”

Section: Composição De áCidos Graxos (Ag)unclassified

Extración de lípidos de la microalga scenedesmus sp. con diferentes mezclas de solventes orgánicos

Sierra¹

2018

BSAA

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Extração de lipídios da microalga Scenedesmus sp. Com diferentes mistura de solventes orgânicos Lipid extraction of the microalga Scenedesmus sp. with different mixture of organic solvents Extracción de lípidos de la microalga Scenedesmus sp. con diferentes mezclas de solventes orgánicos JOSÉ JOVANNY BERMUDEZ-SIERRA 1 RESUMO As microalgas são fontes de lipídeos com potencial para produção de biocombustíveis e suplementos alimentares em grande escala. O presente estudo avalia o papel dos solventes orgânicos de tipos apolares e próticos polares (razão 1:2) na extração e quantificação de lipídios totais e ácidos graxos metil-ésteres (FAMEs sigla em inglês) da micro-alga Scenedesmus. sp. As amostras da microalga liofilizadas foram quantificados os lipídios por Bligh & Dyer (B&D) modificado e pré-tratadas com acido clorídrico 3 mol•L -1 (com e sem HCl). O clorofórmio foi substituído pelo acetato de etila, éter de petróleo e éter etílico e o metanol por etanol, Isopropanol e terc-butanol. Os FAMEs dos óleos de cada tratamento, com ou sem adição de HCl, foram quantificados por cromatografia gasosa. Os resultados evidenciaram que a maior extração de li-

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Lipid content and fatty acid profile of Nannochloropsis oculata before and after extraction with conventional solvents and/or compressed fluids

Cited by 31 publications

References 31 publications

Production of microalgae with high lipid content and their potential as sources of nutraceuticals

Production of microalgae with high lipid content and their potential as sources of nutraceuticals

Preliminary Studies of Palm Oil Glycerolysis Catalysed by Nanostructured Oxides Obtained by Calcination of Layered Double Hydroxides

Extración de lípidos de la microalga scenedesmus sp. con diferentes mezclas de solventes orgánicos

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