Articles
OPTIMIZATION OF PROCESSING PARAMETERS FOR THE EXTRACTION OF ESSENTIAL OIL FROM ORANGE RIND
Article number
864_65
Pages
479 – 484
Language
English
Abstract
The residues generated in the orange juice processing industries in Brazil are generally donated or sold at an extremely low price, and these are consequently used in animal feed or as organic fertilizer.
For this reason, the present work was planned to give a better economic viability to these residues through the extraction of oil which could be used later in food and cosmetic industrial products.
A 23 factorial with star design was utilized and the factors such as: solvent concentration, time and temperature of extraction were varied while the process yield was evaluated as response.
The factors varied according to the planned experimental matrix and the models were evaluated by ANOVA while for optimization of parameters, response surface methodology (RSM) was employed.
A unitary type extractor Foss Tecator of Soxtex was employed while various mixtures of alcohol and water were used as solvent.
The extracts were incolored and possessed characteristic orange aroma.
Through ANOVA analysis, a square model was adjusted to fit the results.
The RSM analysis revealed the yield to be parabolic in nature between solvent concentration and time, and saddle point for temperature.
The optimum regions for essential oil extraction pertained to the mean values of solvent concentration and of time but of minimum temperature for extraction.
This work demonstrates that it is possible to aggregate value to these residues through the extraction of essential oils which could be used as subsidiary products and commercialized by industries.
For this reason, the present work was planned to give a better economic viability to these residues through the extraction of oil which could be used later in food and cosmetic industrial products.
A 23 factorial with star design was utilized and the factors such as: solvent concentration, time and temperature of extraction were varied while the process yield was evaluated as response.
The factors varied according to the planned experimental matrix and the models were evaluated by ANOVA while for optimization of parameters, response surface methodology (RSM) was employed.
A unitary type extractor Foss Tecator of Soxtex was employed while various mixtures of alcohol and water were used as solvent.
The extracts were incolored and possessed characteristic orange aroma.
Through ANOVA analysis, a square model was adjusted to fit the results.
The RSM analysis revealed the yield to be parabolic in nature between solvent concentration and time, and saddle point for temperature.
The optimum regions for essential oil extraction pertained to the mean values of solvent concentration and of time but of minimum temperature for extraction.
This work demonstrates that it is possible to aggregate value to these residues through the extraction of essential oils which could be used as subsidiary products and commercialized by industries.
Authors
A.F. Evangelista, N. Narain, R.R. Souza, J.C.C. Santana
Keywords
oil, orange, response surface methodology, yield, standardization
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