Energy-Saving Lipid Extraction from Wet Euglena gracilis by the Low-Boiling-Point Solvent Dimethyl Ether

Kanda, Hideki; Li, Peng; Goto, Motonobu; Makino, Hisao

doi:10.3390/en8010610

Cited by 40 publications

(25 citation statements)

References 28 publications

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“…The European Food Safety Authority (EFSA) has approved DME as a safe solvent for the production of foodstuffs and food ingredients . DME was suitable for lipid extraction from wet Euglena gracilis and extraction yields (32.5% of dry biomass) was comparable to that of the hexane Soxhlet (31.8% of dry biomass) . In work by Sakuragi et al, also with wet Euglena gracilis , approximately 96.7% of the total oil was obtained with a mixture of liquefied dimethyl ether at 20 °C for 5 min.…”

Section: Lipid Extractionmentioning

confidence: 88%

Edible Oil Production From Microalgae: A Review

Zhao-hui

Wan

et al. 2018

Euro J Lipid Sci & Tech

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Microalgae are considered an interesting candidate for the sustainable production of edible oils. Because microalgae contain abundant polyunsaturated fatty acids (PUFA) and have high photosynthetic rates and high oil productivity, they are superior to terrestrial oleaginous crops for producing edible oils. Microalgae are cultivated in aquatic environments, and thus, oil extraction methods for microalgae must consider the influence of water. This paper provides an overview of the suitability of microalgal lipid compositions and proposes a selection of species for edible oil production. The numerous technologies currently available for pretreatment, wet extraction and the refining of edible oils from microalgae are collated and presented, with a primary focus on the key parameters influencing process performance. Furthermore, the paper presents a proposed solution for a microalgae integrated system for edible oil production, which is a possible future direction to develop an economical and environmentally friendly process for the resource utilization of microalgal biomass. Practical Application: Microalgae might be the most promising source of edible oils, with potential applications in food industrialization, due to its rich oil content and its characteristic fatty acid composition. The review provides a selection criterion of microalgal species to help researchers exploit microalgae to produce superior edible oils for human consumption. Various process parameters and wet extraction methods are discussed that may be conducive to improving process performance and achieving high oil recovery yields. By considering the maximum utilization of microalgal biomass, an integrated system in this review would assist in economical production during further studies. Microalgae are the most promising candidates for edible oil production. Cell disruption, extraction, and refining are important processes for microalgal oils and on this basis, wet extraction and resource utilization can further promote the economic feasibility of microalgal process.

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Section: Lipid Extractionmentioning

confidence: 88%

Edible Oil Production From Microalgae: A Review

Zhao-hui

Wan

et al. 2018

Euro J Lipid Sci & Tech

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“…In particular, propane, n-butane or dimethyl ether (DME) as liquified solvents have been extensively investigated for the extraction of fats and oils, antioxidants and aromas. [38][39][40][41][42][43][44][45][46][47][48] Zanqui et al 49 proposed n-propane as a solvent for the extraction of chia (Salvia hispanica L.) oil, resulting in a good extraction yield (28.16%) similar to the Soxhlet method and SC CO 2 , within a short time period (1 h). Moreover, the oil extracted using n-propane showed the best oxidation stability and the highest contents in polyunsaturated fatty acids (829 mg g −1 oil), particularly, omega 3 (628 mg g −1 oil) and omega 6 (201 mg g −1 oil).…”

Section: Applicationsmentioning

confidence: 99%

A review of sustainable and intensified techniques for extraction of food and natural products

et al. 2020

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“…The experimental apparatus has been described in detail in our previous paper [15]. In brief, the apparatus consists of two main parts: an extraction column (diameter, 11.6 mm; length, 190 mm; HPG-10-5, Taiatsu Techno Corporation; Saitama, Japan) and a storage vessel for the mixture of DME, oil, and water (HPG-96-3, Taiatsu Techno Corporation, Tokyo, Japan).…”

Section: Dimethyl Ether Extractionmentioning

confidence: 99%

“…in the case of dewatering of industrial green tea waste by using bench-scale equipment, the DME can be recycled under an operation pressure of 0.51 MPa at 10-30˝C [14]. This DME-based extraction method has also been used to recover the oily substances from a series of feedstocks [15][16][17]. To provide fundamental research toward the future commercial application of this technique, in this study, three major IFWs (spent coffee grounds, soybean, and rapeseed cakes) were investigated for oil recovery by using the lab-scale DME extraction method.…”

Section: Introductionmentioning

confidence: 99%

Recovery of Bio-Oil from Industrial Food Waste by Liquefied Dimethyl Ether for Biodiesel Production

Sakuragi

Otaka

et al. 2016

Energies

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Abstract:The development of new energy sources has become particularly important from the perspective of energy security and environmental protection. Therefore, the utilization of waste resources such as industrial food wastes (IFWs) in energy production is expected. The central research institute of electric power industry (CRIEPI, Tokyo, Japan) has recently developed an energy-saving oil-extraction technique involving the use of liquefied dimethyl ether (DME), which is an environmentally friendly solvent. In this study, three common IFWs (spent coffee grounds, soybean, and rapeseed cakes) were evaluated with respect to oil yield for biodiesel fuel (BDF) production by the DME extraction method. The coffee grounds were found to contain 16.8% bio-oil, whereas the soybean and rapeseed cakes contained only approximately 0.97% and 2.6% bio-oil, respectively. The recovered oils were qualitatively analysed by gas chromatography-mass spectrometry. The properties of fatty acid methyl esters derived from coffee oil, such as kinematic viscosity, pour point, and higher heating value (HHV), were also determined. Coffee grounds had the highest oil content and could be used as biofuel. In addition, the robust oil extraction capability of DME indicates that it may be a favourable alternative to conventional oil extraction solvents.

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Energy-Saving Lipid Extraction from Wet Euglena gracilis by the Low-Boiling-Point Solvent Dimethyl Ether

Cited by 40 publications

References 28 publications

Edible Oil Production From Microalgae: A Review

Edible Oil Production From Microalgae: A Review

A review of sustainable and intensified techniques for extraction of food and natural products

Recovery of Bio-Oil from Industrial Food Waste by Liquefied Dimethyl Ether for Biodiesel Production

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