Biocatalytic esterification of lavandulol in supercritical carbon dioxide using acetic acid as the acyl donor

2006 ◽  
Vol 39 (4) ◽  
pp. 621-625 ◽  
Author(s):  
Teresa Olsen ◽  
Francesca Kerton ◽  
Ray Marriott ◽  
Gideon Grogan
Keyword(s):  
Carbon Dioxide ◽  
Acetic Acid ◽  
Supercritical Carbon Dioxide ◽  
Acyl Donor ◽  
Supercritical Carbon

scholarly journals Anti-Inflammatory Effect of Supercritical-Carbon Dioxide Fluid Extract from Flowers and Buds ofChrysanthemum indicumLinnén

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Xiao-Li Wu ◽  
Chu-Wen Li ◽  
Hai-Ming Chen ◽  
Zu-Qing Su ◽  
Xiao-Ning Zhao ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Acetic Acid ◽  
Chemical Composition ◽  
Supercritical Carbon Dioxide ◽  
Granuloma Formation ◽  
Ear Edema ◽  
Cotton Pellet ◽  
Anti Inflammatory ◽  
Inflammatory Effect ◽  
Supercritical Carbon

The aim of this study was to analyze the chemical composition and investigate the anti-inflammatory property of the supercritical-carbon dioxide extract from flowers and buds ofC. indicum(CISCFE). The anti-inflammatory effect was evaluated in four animal models including xylene-induced mouse ear edema, acetic acid-induced mouse vascular permeability, carrageenan-induced mouse hind paw edema, and cotton pellet-induced rat granuloma formation. The results indicated that CISCFEsignificantly attenuated xylene-induced ear edema, decreased acetic acid-induced capillary permeability, reduced carrageenan-induced paw, and inhibited the cotton pellet-induced granuloma formation in a dose-dependent manner. Histopathologically, CISCFEabated inflammatory response of the edema paw. Preliminary mechanistic studies demonstrated that CISCFEdecreased the MDA level via increasing the activities of anti-oxidant enzymes (SOD, GPx, and GRd), attenuated the productions of NF-κB, TNF-α, IL-1β, IL-6, PGE2and NO, and suppressed the activities of iNOS and COX-2. In phytochemical study, 35 compounds were identified by GC-MS, and 5 compounds (chlorogenic acid, luteolin-7-glucoside, linarin, luteolin and acacetin) were reconfirmed and quantitatively determined by HPLC-PAD. This paper firstly analyzed the chemical composition by combining GC-MS with HPLC-PAD and explored possible mechanisms for the anti-inflammatory effect of CISCFE.

Quaternary solubility of acetic acid, diacetin and triacetin in supercritical carbon dioxide

2017 ◽  
Vol 119 ◽  
pp. 52-57 ◽  
Author(s):  
Hassan S. Ghaziaskar ◽  
Sepideh Afsari ◽  
Marzieh Rezayat ◽  
Hajar Rastegari
Keyword(s):  
Carbon Dioxide ◽  
Acetic Acid ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon

Cosolvent Effect of Methanol and Acetic Acid on Dibenzofuran Solubility in Supercritical Carbon Dioxide

2008 ◽  
Vol 53 (11) ◽  
pp. 2649-2653 ◽  
Author(s):  
Eduardo Pérez ◽  
Albertina Cabañas ◽  
Juan A. R. Renuncio ◽  
Yolanda Sánchez-Vicente ◽  
Concepción Pando
Keyword(s):  
Carbon Dioxide ◽  
Acetic Acid ◽  
Supercritical Carbon Dioxide ◽  
Supercritical Carbon
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