Supercritical CO2 extraction of oil from rose hips (Rosa canina L.) and cornelian cherry (Cornus mas L.) seeds

The comparison of the antioxidant activity of the studied forest fruits emphasized a hierarchy of the antioxidant capacity in rosehip, blackthorn, lingonberry and cornelian cherry. The purpose of the study was to investigate the antioxidant capacity and nutritional value of rosehip, blackthorn, lingonberry and cornelian cherry. In the current study, the FT-IR spectroscopy technique was applied to detect molecular components in forest fruits samples. Antioxidant capacity was evaluated with photochemical assay as well as humidity, protein, fibre, lipid and carbohydrate content. The FT-IR results revealed the presence of different bio-active compounds in berries such as flavonoids, tannins, sugars, acids, proanthocyanidins, carotenoids, citric metabolites and others. The highest antioxidant capacity was observed in rosehip 105.67±1.38 and blackthorn 49.89±1.92 (μg/mg equivalent ascorbic acid). Regarding nutritional parameters, rosehip showed the most increased content of protein displaying average values of 1.60, carbohydrates 38.20 and fibre 24.10 (g/100 g/sample). These results can provide useful information providing a research interest for the identification of new molecular compounds from Romanian flora samples. ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 4, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

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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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Fruit Characteristics of Different Varieties of Cornelian Cherry (Cornus mas L.) Cultivated in the Czech Republic

Erwerbs-Obstbau ◽

10.1007/s10341-021-00551-z ◽

2021 ◽

Author(s):

Zuzana Jurečková ◽

Pavel Diviš ◽

Jitka Cetkovská ◽

Milena Vespalcová ◽

Jaromír Pořízka ◽

...

Keyword(s):

Czech Republic ◽

Fruit Characteristics ◽

The Czech Republic ◽

Cornelian Cherry ◽

Cornus Mas

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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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