Biological activities and chemical composition of Morus leaves extracts obtained by maceration and supercritical fluid extraction

2016 ◽  
Vol 117 ◽  
pp. 50-58 ◽  
Author(s):  
Marija Radojković ◽  
Zoran Zeković ◽  
Pavle Mašković ◽  
Senka Vidović ◽  
Anamarija Mandić ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Biological Activities ◽  
Fluid Extraction

scholarly journals Supercritical Fluid Extraction of Halogenated Monoterpenes from the Red Alga Plocamium cartilagineum

2001 ◽  
Vol 84 (5) ◽  
pp. 1313-1331 ◽  
Author(s):  
Donqhui Gao ◽  
Roy Okuda ◽  
Viorica Lopez-Avila
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Biological Activities ◽  
Red Alga ◽  
Fluid Extraction ◽  
The Pacific ◽  
Halogenated Monoterpenes ◽  
Conventional Solvent Extraction ◽  
Plocamium Cartilagineum

Abstract Supercritical fluid extraction (SFE) of the marine red alga Plocamium cartilagineum, which is known to contain complex mixtures of halogenated monoterpenes, was investigated. P. cartilagineum samples were extracted by SFE with carbon dioxide and modified carbon dioxide containing up to 10% methanol at different pressure and temperature conditions to establish the optimum conditions for extraction. These conditions were then used in the extraction of halogenated monoterpenes from 2 different samples of P. cartilagineum: one from Davenport, CA, and the other from Casa Beach (San Diego, CA). Several halogenated monoterpenes isolated by conventional solvent extraction with methanol and purified by column chromatography were used as the reference compounds for the determination of the extraction efficiency in the SFE experients. Plocamium cartilagineum belongs to the red alga family—Plocamiaceae, and has been found to contain a large number of halogenated monoterpenes, whose structures typically contain 1–6 bromine and/or chlorine atoms. P. cartilagineum grows along the Pacific coast from Washington to Chile, the British Isles, Australia, and Spain. Interestingly, P. cartilagineum collected from different geographical areas in the world are all reported to produce halogenated monoterpenes, but of different structural types and halogen substitution patterns. Most of these halogenated monoterpenes have been found to exhibit varied biological activities, including antifungal, antimicrobial, and molluscicidal activity.

scholarly journals Supercritical fluid extraction of grape seed: Process scale-up, extract chemical composition and economic evaluation

2012 ◽  
Vol 109 (2) ◽  
pp. 249-257 ◽  
Author(s):  
Juliana M. Prado ◽  
Irede Dalmolin ◽  
Natália D.D. Carareto ◽  
Rodrigo C. Basso ◽  
Antonio J.A. Meirelles ◽  
...  
Keyword(s):  
Economic Evaluation ◽  
Chemical Composition ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Scale Up ◽  
Grape Seed ◽  
Fluid Extraction ◽  
Process Scale Up ◽  
Process Scale

scholarly journals COMPARISON OF LAURUS NOBILIS EXTRACTS COMPOSITION OBTAINED BY MICROWAVE EXTRACTION, SUPERCRITICAL FLUID EXTRACTION AND STEAM DISTILLATION

2019 ◽  
pp. 373-385 ◽  
Author(s):  
Oleg Igorevich Pokrovskiy ◽  
Denis Igorevich Prokopchuk ◽  
Saida Amiranovna Bagatelia ◽  
Sergei Alexandrovich Pokryshkin ◽  
Mikhail Olegovich Kostenko ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Steam Distillation ◽  
Sesquiterpene Lactones ◽  
Volatile Component ◽  
Biologically Active ◽  
Microwave Extraction ◽  
Fluid Extraction ◽  
Laurus Nobilis

A comparison of chemical composition of bay laurel extracts obtained by microwave extraction, supercritical fluid extraction and steam distillation was performed. Microwave extraction and steam distillation were shown to give similar essential oils. Microwave extract contains more monoterpenoid components, especially hydrocarbons. Steam distillation oil contains more sesquiterpenoid compounds, mostly oxygenated. SFE extract composition differs substantially from the ones obtained by two other methods. According to GC-MS data they contain much more sesquiterpenoid components, namely sesquiterpene lactones. This makes SFE a perspective candidate for isolation of biologically active compounds from laurel leaves. However, apart from valuable compound SFE extracts also contain substantial amounts of waxes as well as large quantities of some non-volatile component undetectable via GC-MS. In order to implement SFE into the practice of laurel processing one has to develop an approach for the fractionation of SFE extracts allowing isolating sesquiterpene lactone enriched fraction.

Biological activities of Solanum paludosum Moric. extracts obtained by maceration and supercritical fluid extraction

2011 ◽  
Vol 58 (3) ◽  
pp. 391-397 ◽  
Author(s):  
Silvia Siqueira ◽  
Vivyanne dos Santos Falcão-Silva ◽  
Maria de Fátima Agra ◽  
Claudio Dariva ◽  
José Pinto de Siqueira-Júnior ◽  
...  
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Biological Activities ◽  
Fluid Extraction

scholarly journals Supercritical Fluid Extraction of Celery and Parsley Fruit-Chemical Composition and Antibacterial Activity

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3163 ◽  
Author(s):  
Dusan Misic ◽  
Vanja Tadic ◽  
Malgorzata Korzeniowska ◽  
Jakov Nisavic ◽  
Ksenija Aksentijevic ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Cytotoxic Effect ◽  
Biologically Active ◽  
Rabbit Kidney ◽  
Fluid Extraction ◽  
Fruit Extracts ◽  
Weak Activity

Supercritical fluid extraction as an environmentally friendly technology was applied to isolate biologically active extracts from celery and parsley fruits for potential applications in the food industry. The extractions were performed under mild temperature conditions of 39.85 °C and at pressures of 10 and 30 MPa. The extracts were analyzed regarding their chemical composition, antibacterial activity, and cytotoxic effect. Sedanolide was the dominant component of the celery fruit extracts, comprising more than 70% of the obtained fraction, while the content of apiole in the parsley fruit SC CO2 extracts exceeded 85%. The celery fruit extracts showed strong and moderately strong antibacterial activity against tested Staphylococcus aureus, Bacillus (B.) cereus, B. subtilis, B. circulans, Listeria (L.) greyi, L. seeligeri and L. welshimeri, with minimal inhibitory concentration (MIC) values between 160 and 640 µg/mL, and weak activity against the selected Salmonella isolates with a MIC of 2560 µg/mL. The parsley extract obtained at 10 MPa showed strong and moderately strong antibacterial effects against Bacillus strains with obtained MICs of 160–640 µg/mL, and weak activity against Staphylococcus, Listeria, and Salmonella with a MIC of 2560 µg/mL. Cytotoxicity investigation showed that the extracts with proven antibacterial activity had no cytotoxic effect on rabbit kidney cells at concentrations of up to 640 µg/mL.

scholarly journals Chemical Composition, Antioxidant, and Anti-Inflammatory Activity of Essential Oil from Omija (Schisandra chinensis (Turcz.) Baill.) Produced by Supercritical Fluid Extraction Using CO2

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1619
Author(s):  
Jae-Hoon Lee ◽  
Yun-Yeol Lee ◽  
Jangho Lee ◽  
Young-Jin Jang ◽  
Hae-Won Jang
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Inflammatory Activity ◽  
Composition Analysis ◽  
Raw 264.7 ◽  
Schisandra Chinensis ◽  
Fluid Extraction ◽  
Anti Inflammatory

Schisandra chinensis (Turcz.) Baill., which is known as omija in South Korea, is mainly cultivated in East Asia. The present study aimed to investigate the chemical composition of essential oil from the omija (OMEO) fruit obtained by supercritical fluid extraction using CO2 and to confirm the antioxidant and anti-inflammatory activity of OMEO using HaCaT human keratinocyte and RAW 264.7 murine macrophages. As a result of the chemical composition analysis of OMEO using gas chromatography-mass spectrometry, a total of 41 compounds were identified. The detailed analysis results are sesquiterpenoids (16), monoterpenoids (14), ketones (4), alcohols (3), aldehydes (2), acids (1), and aromatic hydrocarbons (1). OMEO significantly reduced the increased ROS levels in HaCaT keratinocytes induced by UV-B irradiation (p < 0.05). It was confirmed that 5 compounds (α-pinene, camphene, β-myrcene, 2-nonanone, and nerolidol) present in OMEO exhibited inhibitory activity on ROS production. Furthermore, OMEO showed excellent anti-inflammatory activity in RAW 264.7 macrophages induced by lipopolysaccharide. OMEO effectively inhibited NO production (p < 0.05) by suppressing the expression of the iNOS protein. Finally, OMEO was investigated for exhibition of anti-inflammatory activity by inhibiting the activation of NF-κB pathway. Taken together, OMEO could be used as a functional food ingredient with excellent antioxidant and anti-inflammatory activity.

scholarly journals Supercritical CO2 extraction of mentha (Mentha piperita L.) at different solvent densities

2009 ◽  
Vol 74 (4) ◽  
pp. 417-425 ◽  
Author(s):  
Zoran Zekovic ◽  
Zika Lepojevic ◽  
Slavica Milic ◽  
Dusan Adamovic ◽  
Ibrahim Mujic
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Supercritical Co2 ◽  
Mentha Piperita ◽  
Supercritical Co2 Extraction ◽  
Fluid Extraction

The chemical composition of mentha essential oil and mentha extracts obtained at different pressures/temperatures by supercritical fluid extraction (SFE) were studied by GC-MS. The menthol content was also determined spectrophotometrically. The predominant compounds in the essential oil and in the CO2 extract obtained at 100 bar were L-menthon and menthole but at higher pressures (from 150 to 400 bar), squalene was dominant. The equation of Naik et al. was used for modelling the mentha-supercritical CO2 system.

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