Supercritical CO2 extraction method of aromatic compounds from truffles

The flowers of Narcissus poeticus are used for the isolation of valuable fragrance substances. So far, as the majority of these substances consist of volatile and sensitive to heat compounds, there is a need of developing effective methods for their recovery. In this study, freeze-dried N. poeticus inflorescences were extracted with pure supercritical CO2 (SFE-CO2) and its mixture with 5% co-solvent ethanol (EtOH) at 40 °C. Extract yields varied from 1.63% (12 MPa) to 3.12% (48 MPa, 5% EtOH). In total, 116 volatile compounds were identified by GC-TOF/MS in the extracts, which were divided into 20 different groups. Benzyl benzoate (9.44–10.22%), benzyl linoleate (1.72–2.17%) and benzyl alcohol (0.18–1.00%) were the major volatiles among aromatic compounds. The amount of the recovered benzyl benzoate in N. poeticus SFE-CO2 extracts varied from 58.98 ± 2.61 (24 MPa) to 91.52 ± 1.36 (48 MPa) mg/kg plant dry weight (pdw). α-Terpineol dominated among oxygenated monoterpenes (1.08–3.42%); its yield was from 9.25 ± 0.63 (12 MPa) to 29.88 ± 1.25 (48 MPa/EtOH) mg/kg pdw. Limonene was the major monoterpene hydrocarbon; (3E)-hexenol and heneicosanol dominated among alcohols and phenols; dihydroactinidiolide and 4,8,12,16-tetramethyl heptadecan-4-olide were the most abundant lactones; heptanal, nonanal, (2E,4E)-decadienal and octadecanal were the most abundant aldehydes. The most important prenol lipids were triterpenoid squalene, from 0.86 ± 0.10 (24 MPa) to 7.73 ± 0.18 (48 MPa/EtOH) mg/kg pdw and D-α-tocopherol, from 1.20 ± 0.04 (12 MPa) to 15.39 ± 0.31 (48 MPa/EtOH) mg/kg pdw. Aliphatic hydrocarbons (waxes) constituted the main part (41.47 to 54.93%) in the extracts; while in case of a 5% EtOH the percentage of alkanes was the lowest. The fraction of waxes may be removed for the separation of higher value fragrance materials. In general, the results obtained are promising for a wider application of SFE-CO2 for the recovery of fragrance substances from N. poeticus flowers.

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Supercritical CO2 Extraction and Identification of Ginsenosides in Russian and North Korean Ginseng by HPLC with Tandem Mass Spectrometry

Molecules ◽

10.3390/molecules25061407 ◽

2020 ◽

Vol 25 (6) ◽

pp. 1407 ◽

Cited By ~ 1

Author(s):

Mayya Razgonova ◽

Alexander Zakharenko ◽

Tai-Sun Shin ◽

Gyuhwa Chung ◽

Kirill Golokhvast

Keyword(s):

Mass Spectrometry ◽

Tandem Mass Spectrometry ◽

Supercritical Co2 ◽

Extraction Method ◽

High Performance ◽

Tandem Mass ◽

Supercritical Co2 Extraction ◽

Mass Spectrometry Identification ◽

Spectral Peaks ◽

Korean Ginseng

Ginseng roots, Panax ginseng C.A. Meyer, obtained from cultivated ginseng grown in the Kaesong province (North Korea) and Primorye (Russia) were extracted using the supercritical CO2 extraction method. The extracts were subsequently analyzed by high-performance liquid chromatography with tandem mass spectrometry identification. The results showed the spectral peaks of typical ginsenosides with some other minor groups, and major differences were observed between the spectra of the two ginseng samples. The use of a pressure of 400 bar and higher allowed an increase in the yield of ginsenosides in comparison with similar previous studies

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REVIEW OF SCIENTIFIC WORKS ON TECHNOLOGIES FOR EXTRACTION OF BIOCOMPONENTS FROM VEGETABLE RAW MATERIALS. SUPERCRITICAL CO2 EXTRACTION IS AN EFFECTIVE NEW METHOD FOR SOLVING THE GLOBAL PROBLEM OF UTILIZATION AND QUALITY OF PLANT AND ORGANIC RAW MATERIALS

Globus: technical sciences ◽

10.52013/2713-3079-39-3-2 ◽

2021 ◽

Vol 7 (3(39)) ◽

pp. 9-24

Author(s):

D. Starokadomsky ◽

A. Titenko ◽

A. Kamarali ◽

V. Kuts ◽

S. Maloshtan ◽

...

Keyword(s):

Supercritical Co2 ◽

Extraction Method ◽

Raw Materials ◽

Supercritical Co2 Extraction ◽

External View ◽

Plant Raw Materials ◽

The World ◽

Vegetable Raw Materials ◽

Initial Perception

A brief review and assessment of methods for the extraction (extraction) of active biocomponents from plant raw materials is presented. The overview contains a number of tables and diagrams to facilitate the initial perception of this topic. Examples of stationary and mobile installations developed in the world are shown. The prospects of the Supercritical CO2-extraction method, as the most effective for the extraction of valuable biomedical components, have been analyzed. The schemes and samples of the used CO2-extractors are shown. The schemes and external view of the author’s experimental setup for extraction with supercritical CO2 developed by our team are presented.

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Supercritical CO2 Extraction And Optimization of Total Phenols From Strawberry tree (Arbutus unedo L.) Fruits: A Comparative Study

Planta Medica ◽

10.1055/s-0031-1282646 ◽

2011 ◽

Vol 77 (12) ◽

Author(s):

Ş Akay ◽

I Alpak ◽

Ö Yeşil Çeliktaş

Keyword(s):

Comparative Study ◽

Supercritical Co2 ◽

Total Phenols ◽

Supercritical Co2 Extraction ◽

Arbutus Unedo ◽

Strawberry Tree

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Optimized Supercritical CO2 Extraction Enhances the Recovery of Valuable Lipophilic Antioxidants and Other Constituents from Dual-Purpose Hop (Humulus lupulus L.) Variety Ella

Antioxidants ◽

10.3390/antiox10060918 ◽

2021 ◽

Vol 10 (6) ◽

pp. 918

Author(s):

Nóra Emilia Nagybákay ◽

Michail Syrpas ◽

Vaiva Vilimaitė ◽

Laura Tamkutė ◽

Audrius Pukalskas ◽

...

Keyword(s):

Supercritical Co2 ◽

Antioxidant Properties ◽

Extraction Yield ◽

Biologically Active ◽

High Yield ◽

Acid Extraction ◽

Supercritical Co2 Extraction ◽

Bioactive Constituents ◽

Total Extract

The article presents the optimization of supercritical CO2 extraction (SFE-CO2) parameters using response surface methodology (RSM) with central composite design (CCD) in order to produce single variety hop (cv. Ella) extracts with high yield and strong in vitro antioxidant properties. Optimized SFE-CO2 (37 MPa, 43 °C, 80 min) yielded 26.3 g/100 g pellets of lipophilic fraction. This extract was rich in biologically active α- and β-bitter acids (522.8 and 345.0 mg/g extract, respectively), and exerted 1481 mg TE/g extract in vitro oxygen radical absorbance capacity (ORAC). Up to ~3-fold higher extraction yield, antioxidant recovery (389.8 mg TE/g pellets) and exhaustive bitter acid extraction (228.4 mg/g pellets) were achieved under the significantly shorter time compared to the commercially used one-stage SFE-CO2 at 10–15 MPa and 40 °C. Total carotenoid and chlorophyll content was negligible, amounting to <0.04% of the total extract mass. Fruity, herbal, spicy and woody odor of extracts could be attributed to the major identified volatiles, namely β-pinene, β-myrcene, β-humulene, α-humulene, α-selinene and methyl-4-decenoate. Rich in valuable bioactive constituents and flavor compounds, cv. Ella hop SFE-CO2 extracts could find multipurpose applications in food, pharmaceutical, nutraceutical and cosmetics industries.

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Supercritical CO2 extraction of Moroccan argan (Argania spinosa L.) oil: Extraction kinetics and solubility determination

Journal of CO2 Utilization ◽

10.1016/j.jcou.2021.101458 ◽

2021 ◽

Vol 46 ◽

pp. 101458

Author(s):

Adil Mouahid ◽

Isabelle Bombarda ◽

Magalie Claeys-Bruno ◽

Sandrine Amat ◽

Emmanuelle Myotte ◽

...

Keyword(s):

Supercritical Co2 ◽

Oil Extraction ◽

Supercritical Co2 Extraction ◽

Extraction Kinetics ◽

Argania Spinosa ◽

Solubility Determination

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Supercritical CO2 Extraction of Palladium Oxide from an Aluminosilicate-Supported Catalyst Enhanced by a Combination of Complexing Polymers and Piperidine

Molecules ◽

10.3390/molecules26030684 ◽

2021 ◽

Vol 26 (3) ◽

pp. 684

Author(s):

Andrea Ruiu ◽

Bernhard Bauer-Siebenlist ◽

Marin Senila ◽

W. S. Jennifer Li ◽

Karine Seaudeau-Pirouley ◽

...

Keyword(s):

Energy Saving ◽

Supercritical Co2 ◽

Supported Catalyst ◽

Precious Metals ◽

Palladium Oxide ◽

Supercritical Co2 Extraction ◽

Wide Range

Precious metals, in particular Pd, have a wide range of applications in industry. Due to their scarcity, precious metals have to be recycled, preferably with green and energy-saving recycling processes. In this article, palladium extraction from an aluminosilicate-supported catalyst, containing about 2 wt% (weight%) of Pd (100% PdO), with supercritical CO2 (scCO2) assisted by complexing polymers is described. Two polymers, p(FDA)SH homopolymer and p(FDA-co-DPPS) copolymer (FDA: 1,1,2,2-tetrahydroperfluorodecyl acrylate; DPPS: 4-(diphenylphosphino)styrene), were tested with regards to their ability to extract palladium. Both polymers showed relatively low extraction conversions of approximately 18% and 30%, respectively. However, the addition of piperidine as activator for p(FDA-co-DPPS) allowed for an increase in the extraction conversion of up to 60%.

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