Supercritical fluid extraction from Lippia alba: global yields, kinetic data, and extract chemical composition

2005 ◽  
Vol 34 (2) ◽  
pp. 149-156 ◽  
Author(s):  
Mara E.M. Braga ◽  
Polyana A.D. Ehlert ◽  
Lin C. Ming ◽  
M. Angela A. Meireles
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 ◽  
...  

2019 ◽  
pp. 373-385 ◽  
Author(s):  
Oleg Igorevich Pokrovskiy ◽  
Denis Igorevich Prokopchuk ◽  
Saida Amiranovna Bagatelia ◽  
Sergei Alexandrovich Pokryshkin ◽  
Mikhail Olegovich Kostenko ◽  
...  

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.


2014 ◽  
Vol 94 ◽  
pp. 206-211 ◽  
Author(s):  
S.M. García-Abarrio ◽  
L. Martin ◽  
J. Burillo ◽  
G. Della Porta ◽  
A.M. Mainar

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3163 ◽  
Author(s):  
Dusan Misic ◽  
Vanja Tadic ◽  
Malgorzata Korzeniowska ◽  
Jakov Nisavic ◽  
Ksenija Aksentijevic ◽  
...  

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.


2016 ◽  
Vol 117 ◽  
pp. 50-58 ◽  
Author(s):  
Marija Radojković ◽  
Zoran Zeković ◽  
Pavle Mašković ◽  
Senka Vidović ◽  
Anamarija Mandić ◽  
...  

Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1619
Author(s):  
Jae-Hoon Lee ◽  
Yun-Yeol Lee ◽  
Jangho Lee ◽  
Young-Jin Jang ◽  
Hae-Won Jang

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.


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