Green ultrasound-assisted extraction of carotenoids from pomegranate wastes using vegetable oils |
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| Affiliation: | 1. School of Water Resources & Environmental Engineering, East China University of Technology, Nanchang 330013, China;2. China-Tin Group Co., Ltd., Liuzhou 545006, China;1. Avignon University, INRA, SQPOV, UMR408, GREEN Extraction Team, F-84000 Avignon, France;2. Oleos, 270 rue Thomas Edison, 34400 Lunel, France;3. Institut de Chimie Séparative de Marcoule, ICSM UMR 5257 (CEA/CNRS/UM2/ENSCM), 30206 Bagnols sur Cèze, France;1. Laboratorio Integral de Investigación en Alimentos, División de Estudios de Posgrado, Instituto Tecnológico de Tepic, Av. Tecnológico 2595, 63175 Tepic, Nayarit, Mexico;2. Laboratorio de Alimentos de Origen Vegetal, Centro de Investigación en Alimentación y Desarrollo A.C., Carretera a La Victoria Km 0.6, 83304 Hermosillo, Sonora, Mexico;3. Departamento de Ciencias Químico Biológicas, Instituto de Ciencias Biomédicas, Universidad Autónoma de Ciudad Juárez, Anillo Envolvente del PRONAF y Estocolmo, s/n Ciudad Juárez, Chih 32310, Mexico;1. Chemical Engineering Department, Federal University of Rio Grande do Sul (UFRGS), Engenheiro Luiz Englert Street, Porto Alegre, RS, 90040-040, Brazil;2. Institute of Food Science and Technology, Federal University of Rio Grande do Sul, Bento Gonçalves Avenue, 9500, Porto Alegre, RS, 91501-970, Brazil |
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| Abstract: | ![]()
The objective of this work was to develop a new process for pomegranate peels application in food industries based on ultrasound-assisted extraction of carotenoids using different vegetable oils as solvents. In this way, an oil enriched with antioxidants is produced. Sunflower oil and soy oil were used as alternative solvents and the effects of various parameters on extraction yield were studied. Extraction temperature, solid/oil ratio, amplitude level, and extraction time were the factors investigated with respect to extraction yield. Comparative studies between ultrasound-assisted and conventional solvent extraction were carried out in terms of processing procedure and total carotenoids content. The efficient extraction period for achieving maximum yield of pomegranate peel carotenoids was about 30 min. The optimum operating conditions were found to be: extraction temperature, 51.5 °C; peels/solvent ratio, 0.10; amplitude level, 58.8%; solvent, sunflower oil. A second-order kinetic model was successfully developed for describing the mechanism of ultrasound extraction under different processing parameters. |
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| Keywords: | Carotenoids Green extraction Green solvent Pomegranate peel Ultrasound extraction |
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