Supercritical fluid extraction from rosemary (Rosmarinus officinalis): Kinetic data, extract's global yield, composition, and antioxidant activity

2005 ◽  
Vol 35 (3) ◽  
pp. 197-204 ◽  
Author(s):  
Raul N. Carvalho ◽  
Lucinewton S. Moura ◽  
Paulo T.V. Rosa ◽  
M. Angela A. Meireles
Keyword(s):  
Antioxidant Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Kinetic Data ◽  
Rosmarinus Officinalis ◽  
Fluid Extraction

Chemical profile and antioxidant activity of sage herbal dust extracts obtained by supercritical fluid extraction

2018 ◽  
Vol 120 ◽  
pp. 305-312 ◽  
Author(s):  
Branimir Pavlić ◽  
Oskar Bera ◽  
Nemanja Teslić ◽  
Senka Vidović ◽  
Giuseppina Parpinello ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Chemical Profile ◽  
Fluid Extraction

Influence of the CO 2 Quality in the Antioxidant Activity of Rosemary Extracts Dearomatized by Supercritical Fluid Extraction

2001 ◽  
Vol 7 (2) ◽  
pp. 177-182
Author(s):  
E. IbáÑez ◽  
J. Tabera ◽  
G. Reglero ◽  
S. López-Sebastián ◽  
J. Fernández ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Fluid Extraction

Effects of supercritical fluid extraction parameters on lycopene yield and antioxidant activity

2009 ◽  
Vol 113 (4) ◽  
pp. 1088-1094 ◽  
Author(s):  
Chun Yi ◽  
John Shi ◽  
Sophia Jun Xue ◽  
Yueming Jiang ◽  
Dong Li
Keyword(s):  
Antioxidant Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Fluid Extraction ◽  
Extraction Parameters

Influence of the CO2 Quality in the Antioxidant Activity of Rosemary Extracts Dearomatized by Supercritical Fluid Extraction

2001 ◽  
Vol 7 (2) ◽  
pp. 177-182 ◽  
Author(s):  
E. Ibanez ◽  
S. Lopez-Sebastian ◽  
J. Fernandez ◽  
J. Tabera ◽  
J. M. Bueno ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Experimental Design ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Sunflower Oil ◽  
Extraction Process ◽  
Taguchi Experimental Design ◽  
Optimal Conditions ◽  
Fluid Extraction

The effect of the CO2 quality (mainly related to CO2 content) in the antioxidant activity of rosemary extracts deodorized by using a supercritical fluid extraction process is analyzed. A Taguchi experimental design was used to study the influence of the CO2 quality on the antioxidant activity of the rosemary dearomatized extracts. The antioxidant activity of the rosemary extracts obtained in optimal conditions was tested with sunflower oil.

Obtaining of the antioxidants by supercritical fluid extraction

2011 ◽  
Vol 65 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Nada Babovic ◽  
Slobodan Petrovic
Keyword(s):  
Antioxidant Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Food Industry ◽  
Natural Antioxidants ◽  
Butylated Hydroxytoluene ◽  
Great Effort ◽  
Synthetic Antioxidants ◽  
Fluid Extraction ◽  
Antioxidant Power

One of the important trends in the food industry today is demand for natural antioxidants from plant material. Synthetic antioxidants such as butylated hydroxytoluene (BHT), and butylated hydroxyanisole (BHA) are now being replaced by the natural antioxidants because of theirs possible toxicity and as they may act as promoters of carcinogens. The natural antioxidants may show equivalent or higher antioxidant activity than the endogenous or the synthetic antioxidants. Thus, great effort is being devoted to the search for alternative and cheap sources of natural antioxidants, as well as to the development of efficient and selective extraction techniques. The supercritical fluid extraction (SFE) with carbon dioxide is considered to be the most suitable method for producing natural antioxidants for the use in food industry. The supercritical extract does not contain residual organic solvents as in conventional extraction processes, which makes these products suitable for use in food, cosmetic and pharmaceutical industry. The recovery of antioxidants from plant sources involves many problematic aspects: choice of an adequate source (in terms of availability, cost, difference in phenolic content with variety and season); selection of the optimal recovery procedure (in terms of yield, simplicity, industrial application, cost); chemical analysis of extracts (for optimization purposes a fast colorimetric method is more preferable than a chromatographic one); evaluation of the antioxidant power (preferably by the different assay methods). The paper presents information about different operational methods for SFE of bioactive compounds from natural sources. It also includes the various reports on the antioxidant activity of the supercritical extracts from Lamiaceae herbs, in comparison with the activity of the synthetic antioxidants and the extracts from Lamiaceae herbs obtained by the conventional methods.

Supercritical fluid extraction from spent coffee grounds and coffee husks: Antioxidant activity and effect of operational variables on extract composition

Talanta ◽  
2012 ◽  
Vol 88 ◽  
pp. 544-552 ◽  
Author(s):  
Kátia S. Andrade ◽  
Ricardo T. Gonçalvez ◽  
Marcelo Maraschin ◽  
Rosa Maria Ribeiro-do-Valle ◽  
Julian Martínez ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Spent Coffee Grounds ◽  
Fluid Extraction ◽  
Operational Variables ◽  
Coffee Grounds
Sign in / Sign up

Export Citation Format

Share Document