a EQA-CTC, UFSC, Chemical and Food Engineering Department, Federal University of Santa Catarina, C.P. 476, Florianópolis, SC, Brazil
b Department of Biological and Agricultural Engineering, Texas AandM University, College Station, TX, United States
b Department of Biological and Agricultural Engineering, Texas AandM University, College Station, TX, United States
Abstract
Large amounts of passion fruit residues are underused by juice industries. Part of the fruit seeds are used for oil production, and the discharged seed cake, the residue from the seed cold pressing, still contains fatty acids and phenolic compounds of interest. This study aimed to apply a sustainable recovery extraction for the valorization of two juice by-products, the passion fruit seed and the seed cake. Different extraction methods were compared in terms of process global yield, and total phenolic content (TPC), antioxidant and antimicrobial activities of the recovered extracts. The methods used were: supercritical fluid extraction (SFE) with CO2 (SC-CO2), conducted at 40 °C and 50 °C and pressures from 150 to 300 bar, and the low pressure extractions (LPE) - cold maceration (MAC) and ultrasonic assisted extraction (UE) - with different solvents. The best yields were obtained by SFE at 250 bar/40 °C for the seed (27 ± 1%) and by MAC with EtOH-H2O (1/1, v/v) for the seed cake (6 ± 1%). Cake extracts obtained by EtOH-H2O presented the best TPC values, antioxidant performance and antibacterial activity against Escherichia coli and Listeria innocua. Therefore, considering the use of green recovery methods to obtain high valuable products from a waste material, the present work presents a sustainable opportunity to aggregate value from passion fruit residues by means of sequential extractions, in order to obtain oil and extract with promising antioxidant and antimicrobial activities. © 2016 Elsevier B.V. All rights reserved.
Author keywords
Antimicrobial activity; Antioxidant activity; Supercritical fluid; Total phenolic content; Ultrasound-assisted extraction
Indexed keywords
Engineering controlled terms: Antioxidants; Carbon dioxide; Effluent treatment; Escherichia coli; Fatty acids; Fruits; Microorganisms; Recovery; Supercritical fluid extraction; Supercritical fluids
Anti-bacterial activity; Anti-microbial activity; Anti-oxidant activities; Sequential extraction; Supercritical fluid extraction (SFE); Total phenolic content; Ultrasonic-assisted extractions; Ultrasound-assisted extraction
Engineering main heading: Extraction
ISSN: 08968446 CODEN: JSFLESource Type: Journal Original language: English
DOI: 10.1016/j.supflu.2016.01.010Document Type: Article
Publisher: Elsevier
Funding Details
Acronym; Sponsor: CAPES; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Number; Acronym; Sponsor: 473153/2012-2; CNPq; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Number; Acronym; Sponsor: 473153/2012-2; CNPq; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
