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Type: Artigo
Title: Oil extraction from Rana catesbeiana by supercritical carbon dioxide and mechanical pressing
Author: Perina, Henrique
Santos, Katia Andressa
Fiorese, Monica Lady
Adeodato Vieira, Melissa Gurgel
da Silva, Edson Antonio
Scheufele, Fabiano Bisinella
Borba, Carlos Eduardo
Abstract: Oil extraction from the fat body of bullfrog (FBB) using supercritical carbon dioxide through supercritical fluid extraction (SFE) and mechanical pressing (ME) was assessed. ME extraction was performed within a temperature range from 40 to 90 degrees C and the SFE at 40 degrees C and 15 MPa. The peroxide index (PI) and oxidative induction time (OIT) of the oil obtained from the ME were negatively influenced by the increase in the extraction temperature; however, the FBB oil extracted at 40 degrees C presented a high quality with acidity index and PI values of 4.7 mg KOH g(-1) and 0.50 mEq kg(-1), respectively. The oils obtained from both processes presented similar physicochemical characteristics, especially related to the composition. Significant amounts of omega-3 (approximate to 3.5%), omega-6 (approximate to 19%), and omega-9 (approximate to 50%) fatty acids were achieved. Thus, the valorization of the FBB through the recovery of its oil may be of great interest mainly due to the high yields achieved (66.7%)
Subject: Ácidos graxos
Country: Estados Unidos
Editor: American Oil Chemists' Society
Rights: Fechado
Identifier DOI: 10.1002/aocs.12140
Date Issue: 2018
Appears in Collections:FEQ - Artigos e Outros Documentos

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