Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/242155
Type: Artigo de periódico
Title: Extraction Of Campomanesia Xanthocarpa Fruit Using Supercritical Co2 And Bioactivity Assessments
Author: Czaikoski
Karina; Mesomo
Michele C.; Krueger
Roberta L.; Queiroga
Carmem Lucia; Corazza
Marcos L.
Abstract: This study reports extraction of Campomanesia xanthocarpa fruit using supercritical CO2 and its chemical composition and biological activity analysis. The experiments were carried out at 15.0, 20.0 and 25.0 MPa and 313.15, 333.15 and 353.15 K. The maximum yield observed was 3.90 wt% at 313.15 K and 25 MPa. The pressure had a significant and positive effect on extraction yields, whereas the temperature effect was significant and negative. Gas chromatography analysis showed that the main compounds identified were alpha-eudesmol, beta-eudesmol, gamma-eudesmol, caryophyllene (E), alpha-sabinene, beta- sabinene, germacrene B, delta-cadinene, humulene and selina-3,7(11)-diene. The highest values of antioxidant activity were found for the extracts obtained at (313.15 K and 25 MPa) and at (353.15K and 15.0 MPa), determined by the DPPH method and the phosphomolybdenum reduction method, respectively. The extract obtained at 353.15K and 25 MPa presented the highest phenolic content (39.12 mg GAE/g of extract). The extract obtained at 313.15 K and 15 MPa presented the maximum antibacterial activity against Staphylococcus aureus. The Gram-negative bacteria tested (Escherichia coli, Pseudomonas aeruginosa and Salmonella typhimuruim) and Listeria monocytogenes were completely resistant toward the C. xanthocarpa fruit extracts. (C) 2015 Published by Elsevier B.V.
Subject: Chemical-composition
Antioxidant Activity
Carbon-dioxide
Essential Oils
Antibacterial Activity
Compressed Propane
Cordia-verbenacea
Outer-membrane
Seed Oil
Berg
Country: AMSTERDAM
Editor: ELSEVIER SCIENCE BV
Citation: Extraction Of Campomanesia Xanthocarpa Fruit Using Supercritical Co2 And Bioactivity Assessments. Elsevier Science Bv, v. 98, p. 79-85 MAR-2015.
Rights: embargo
Identifier DOI: 10.1016/j.supflu.2015.01.006
Address: http://www.sciencedirect.com/science/article/pii/S0896844615000285
Date Issue: 2015
Appears in Collections:Unicamp - Artigos e Outros Documentos

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