Potentialities of using liquefied gases as alternative solvents to substitute hexane for the extraction of aromas from fresh and dry natural products

Rapinel, Vincent; Santerre, Cyrille; Hanaei, Farnaz; Belay, Justine; Vallet, Nadine; Rakotomanomana, Njara; Vallageas, Alain; Chémat, Farid

doi:10.1016/j.crci.2018.04.006

Cited by 22 publications

(9 citation statements)

References 39 publications

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“…Predicted solubilities of some selected solutes usually found in soybean oil were determined in 2-MeOx, 2-MeOx 95.5%, and n -hexane, using the conductor-like screening model for real solvents (COSMO-RS). Briefly, COSMO-RS is a calculation method developed by Klamt using a quantum chemistry model, which has been applied since 2000 for solubility prediction in the context of natural products extraction. , More detailed explanations are presented in our previous studies. , Calculations were performed using the COSMOThermX software (Version 18.0.2, COSMOlogic GmbH & Co., Leverkusen, Germany), at 55 °C, using the “iterative” mode, considering that solutes and solvents are pure and in a liquid state.…”

Section: Methodsmentioning

confidence: 99%

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Dry and Aqueous 2-Methyloxolane as Green Solvents for Simultaneous Production of Soybean Oil and Defatted Meal

Claux

Rapinel

Goupy

et al. 2021

ACS Sustainable Chem. Eng.

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Edible oils are currently largely obtained by solvent extraction using hexane. Despite the fact that this petroleum solvent is known to be neurotoxic, hexane extraction remains the accepted standard process for seed oil extraction and particularly, but not exclusively, for soybean oil extraction. This study evaluates an alternative replacement of hexane with a bio-based and safe solvent, 2-methyloxolane (2-MeOx), either in its dry or in its watersaturated (4.5%w) aqueous form, referred to as 2-MeOx 95.5% in this paper. The analyses focused on extraction yields, composition, and quality of the extraction products. This study also evaluates the feasibility to substitute hexane in industrial extraction processes. Therefore, a kinetic study and multistage cross-current extractions were performed. The work concluded that both 2-MeOx and 2-MeOx 95.5% are good candidates to replace hexane in industrial processes for the extraction of soybean oil, as they gave similar compositions for oil and defatted meal. Hexane and 2-MeOx also gave similar results in terms of extraction rate and performances. 2-MeOx 95.5% exhibited a slightly different behavior during extraction, which was attributed to water diffusion from the solvent to the solid matrix due to its high water activity.

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Section: Methodsmentioning

confidence: 99%

“…28,29 More detailed explanations are presented in our previous studies. 30,31 Calculations were performed using the COSMOThermX software (Version 18.0.2, COSMOlogic GmbH & Co., Leverkusen, Germany), at 55 °C, using the "iterative" mode, considering that solutes and solvents are pure and in a liquid state.…”

Section: ■ Introductionmentioning

confidence: 99%

Dry and Aqueous 2-Methyloxolane as Green Solvents for Simultaneous Production of Soybean Oil and Defatted Meal

Claux

Rapinel

Goupy

et al. 2021

ACS Sustainable Chem. Eng.

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“…In addition, vegetable oils could also be extracted by other alternative eco-friendly solvents (terpenes, 2-MeTHF, liquefied gas, etc.) to n-hexane, which conceivably led to a truly green extraction process for future industrial applications [29,30,31,32].…”

Section: Resultsmentioning

confidence: 99%

Towards a Zero-Waste Biorefinery Using Edible Oils as Solvents for the Green Extraction of Volatile and Non-Volatile Bioactive Compounds from Rosemary

Bundeesomchok

Rakotomanomana

et al. 2019

Antioxidants

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The zero-waste biorefinery concept inspired a green oleo-extraction of both natural volatile (e.g., borneol, camphor, o-cymene, eucalyptol, limonene, α-pinene, and terpinen-4-ol) and non-volatile (e.g., carnosol, carnosic, and rosmarinic acid) bioactive compounds from rosemary leaves with vegetable oils and their amphiphilic derivatives as simple food-grade solvents. It is noteworthy that soybean oil could obtain the highest total phenolic compounds (TPCs) among 12 refined oils including grapeseed, rapeseed, peanut, sunflower, olive, avocado, almond, apricot, corn, wheat germ, and hazelnut oils. Furthermore, the addition of oil derivatives to soybean oils, such as glyceryl monooleate (GMO), glyceryl monostearate (GMS), diglycerides, and soy lecithin in particular, could not only significantly enhance the oleo-extraction of non-volatile antioxidants by 66.7% approximately, but also help to remarkably improve the solvation of volatile aroma compounds (VACs) by 16% in refined soybean oils. These experimental results were in good consistency with their relative solubilities predicted by the more sophisticated COSMO-RS (COnductor like Screening MOdel for Real Solvents) simulation. This simple procedure of using vegetable oils and their derivatives as bio-based solvents for simultaneously improving the extraction yield of natural antioxidants and flavors from rosemary showed its great potential in up-scaling with the integration of green techniques (ultrasound, microwave, etc.) for zero-waste biorefinery from biomass waste to high value-added extracts in future functional food and cosmetic applications.

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“…are very selective and present the advantages of being non‐flammable and are often used preferentially for extraction of odorant molecules from natural raw material as the resulting extract is devoid of unwanted waxy compounds and bears a greater similarity to the original material than conventionally obtained extracts . However, one should keep in mind that HFO‐1234ze production by synthesis and its low biodegradability could constitute major impediments to its industrial use as a green alternative solvent; more generally, a LCA appears necessary to decide whether or not a liquefied gas may be considered as a green alternative or not for a specific process …”

Section: Innovative Techniques For Green Extractionmentioning

confidence: 99%

“…[67,86,87] However, one should keep in mind that HFO-1234ze production by synthesis and its low biodegradability could constitute major impediments to its industrial use as a green alternative solvent; [88 -90] more generally, a LCA appears necessary to decide whether or not a liquefied gas may be considered as a green alternative or not for a specific process. [89] Natural extracts obtained through such processes and dedicated to the perfume industry do exist (Butaflors; cinnamon bark, savory and Madonna lily extracts were obtained using R134a, [31,[91][92][93] etc.) but remain marginal nowadays for economic reasons.…”

Section: Liquefied Gasesmentioning

confidence: 99%

Extraction of Natural Fragrance Ingredients: History Overview and Future Trends

Burger¹,

Plainfossé

Brochet³

et al. 2019

Chemistry & Biodiversity

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For centuries, perfumes consisted in a combination of natural ingredients, mainly of plant origin. From the 19th century on, the advent of organic synthesis enabled the deployment of multiple synthetic olfactory notes, enriching significantly the perfumers’ portfolio. Chemistry is ever since the foundation of modern perfumery. However, sustainable‐minded consumers, massively rejecting synthetics for safety and ecological issues, engaged a global return to nature in numerous sectors, and the fragrance industry is not outdone. Sustainable extraction of natural products, making use of innovative technologies, process intensification and agro‐based solvents, constitutes the answer to develop eco‐conceived fragrant ingredients covering every olfactory family without endangering biodiversity any further. The objective of this review is to draw a clear picture of where those technological advances are today and to assess the ones that may be effectively transposed at the industrial scale tomorrow.

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Potentialities of using liquefied gases as alternative solvents to substitute hexane for the extraction of aromas from fresh and dry natural products

Cited by 22 publications

References 39 publications

Dry and Aqueous 2-Methyloxolane as Green Solvents for Simultaneous Production of Soybean Oil and Defatted Meal

Dry and Aqueous 2-Methyloxolane as Green Solvents for Simultaneous Production of Soybean Oil and Defatted Meal

Towards a Zero-Waste Biorefinery Using Edible Oils as Solvents for the Green Extraction of Volatile and Non-Volatile Bioactive Compounds from Rosemary

Extraction of Natural Fragrance Ingredients: History Overview and Future Trends

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