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Extraction of grape seed oil using compressed carbon dioxide and propane: extraction yields and characterization of free glycerol compounds.
J Agric Food Chem. 2008 Apr 23; 56(8):2558-64.JA

Abstract

The main objective of this work was to compare the extraction of grape seed oil with compressed carbon dioxide and propane on the extraction yields and chemical characteristics of free glycerol compounds. The experiments were performed in a laboratory scale unit in the temperature range of 30 to 60 degrees C and pressures from 60 to 254 bar. The results showed that propane is a more suitable solvent for grape seed oil extraction than carbon dioxide, as higher extractions yields and a very fast kinetic of extraction were achieved with this solvent. In relation to compressed carbon dioxide extractions, both temperature and density presented a very pronounced and positive effect on the extraction yield. The oils extracted were analyzed qualitatively and quantitatively with regard to the free glycerol compounds, mainly fatty acids, ethyl, and methyl esters. The results showed that these compounds are present in low concentration in vegetable oil (<3%) and that, in general, samples extracted with propane present a smaller amount of peaks of free glycerol compounds in the oil than samples extracted with carbon dioxide.

Authors+Show Affiliations

Chemistry Institute, UFRGS, Porto Alegre, RS, Brazil.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18345635

Citation

Dos Santos Freitas, Lisiane, et al. "Extraction of Grape Seed Oil Using Compressed Carbon Dioxide and Propane: Extraction Yields and Characterization of Free Glycerol Compounds." Journal of Agricultural and Food Chemistry, vol. 56, no. 8, 2008, pp. 2558-64.
Dos Santos Freitas L, de Oliveira JV, Dariva C, et al. Extraction of grape seed oil using compressed carbon dioxide and propane: extraction yields and characterization of free glycerol compounds. J Agric Food Chem. 2008;56(8):2558-64.
Dos Santos Freitas, L., de Oliveira, J. V., Dariva, C., Jacques, R. A., & Caramão, E. B. (2008). Extraction of grape seed oil using compressed carbon dioxide and propane: extraction yields and characterization of free glycerol compounds. Journal of Agricultural and Food Chemistry, 56(8), 2558-64. https://doi.org/10.1021/jf0732096
Dos Santos Freitas L, et al. Extraction of Grape Seed Oil Using Compressed Carbon Dioxide and Propane: Extraction Yields and Characterization of Free Glycerol Compounds. J Agric Food Chem. 2008 Apr 23;56(8):2558-64. PubMed PMID: 18345635.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Extraction of grape seed oil using compressed carbon dioxide and propane: extraction yields and characterization of free glycerol compounds. AU - Dos Santos Freitas,Lisiane, AU - de Oliveira,José Vladimir, AU - Dariva,Cláudio, AU - Jacques,Rosângela Assis, AU - Caramão,Elina Bastos, Y1 - 2008/03/18/ PY - 2008/3/19/pubmed PY - 2008/7/10/medline PY - 2008/3/19/entrez SP - 2558 EP - 64 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 56 IS - 8 N2 - The main objective of this work was to compare the extraction of grape seed oil with compressed carbon dioxide and propane on the extraction yields and chemical characteristics of free glycerol compounds. The experiments were performed in a laboratory scale unit in the temperature range of 30 to 60 degrees C and pressures from 60 to 254 bar. The results showed that propane is a more suitable solvent for grape seed oil extraction than carbon dioxide, as higher extractions yields and a very fast kinetic of extraction were achieved with this solvent. In relation to compressed carbon dioxide extractions, both temperature and density presented a very pronounced and positive effect on the extraction yield. The oils extracted were analyzed qualitatively and quantitatively with regard to the free glycerol compounds, mainly fatty acids, ethyl, and methyl esters. The results showed that these compounds are present in low concentration in vegetable oil (<3%) and that, in general, samples extracted with propane present a smaller amount of peaks of free glycerol compounds in the oil than samples extracted with carbon dioxide. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/18345635/Extraction_of_grape_seed_oil_using_compressed_carbon_dioxide_and_propane:_extraction_yields_and_characterization_of_free_glycerol_compounds_ L2 - https://doi.org/10.1021/jf0732096 DB - PRIME DP - Unbound Medicine ER -