The effect of pressure on the characteristics of supercritical carbon dioxide extracts fromCalamintha nepetasubsp.nepeta

被引:6
作者
Debbabi, Haifa [1 ]
El Mokni, Ridha [2 ,3 ,4 ]
Majdoub, Siwar [1 ]
Aliev, Aslan [5 ,6 ]
Hammami, Saoussen [1 ]
机构
[1] Univ Monastir, Fac Sci Monastir, Appl Chem & Environm, Res Unit 13ES63, Monastir 5000, Tunisia
[2] Univ Carthage, Fac Sci Bizerta, Dept Life Sci, Lab Bot & Plant Ecol, Bizerte, Tunisia
[3] Univ Monastir, Fac Pharm Monastir, Dept Pharmaceut Sci A, Lab Bot Cryptogamy & Plant Biol, BP 207, Monastir, Tunisia
[4] Univ Jendouba, Silvo Pastoral Inst Tabarka, Dept Silvopastoral Resources, Lab Silvopastoral Resources, Tabarka, Tunisia
[5] RAS, DSC, Mt Bot Garden, Makhachkala, Russia
[6] RAS, DSC, Inst Phys, Makhachkala, Russia
关键词
Calamintha nepetasubsp; nepeta; chemical composition; extraction parameters; supercritical fluid extraction; ESSENTIAL OIL; FLUID EXTRACTION; CALAMINTHA-NEPETA; RESPONSE-SURFACE; SEED OIL; L; OPTIMIZATION; ANTIOXIDANT;
D O I
10.1002/bmc.4871
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Chemists and industrialists are continuously attempting to develop greener and more environmentally benign chemical processes to extract essential oils and bioactive metabolites of high purity, finding various applications in cosmetics, detergents, nutraceuticals and pharmaceuticals. An increase preferenced for natural products over synthetic ones has made supercritical fluid technology a primary alternative for the generation of high-value bioactive ingredients. This effective technique requires only moderate temperatures, eliminates clean-up steps and avoids the use of harmful organic solvents. In this context, our study was focused on the chemical analysis ofCalamintha nepetasubsp.nepetaaromatic extracts obtained with supercritical carbon dioxide. The effect of different operating conditions on the capacity of the lipophilic solvent to extract the targeted volatile components was also studied. The process was carried out at a fairly low constant temperature of 40 degrees C, and with varying the pressure from 90 to 300 bar. The chemical composition of the extracts was analyzed by gas chromatography-mass spectroscopy. The results showed that the composition pattern, the concentrations of individual components and the quality of the extractable analytes were affected by pressure increase. The extraction yields varied from 0.73 to 1.21 wt% at 90 and 300 bar, respectively.
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页数:7
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