Ultrasound-Assisted Extraction of Blackberry Seed Oil: Optimization and Oil Characterization

Author:

Matei Petronela L.1,Deleanu Iuliana1ORCID,Brezoiu Ana M.1ORCID,Chira Nicoleta A.2,Busuioc Cristina3ORCID,Isopencu Gabriela1,Cîlțea-Udrescu Mihaela4ORCID,Alexandrescu Elvira5ORCID,Stoica-Guzun Anicuta1ORCID

Affiliation:

1. Department of Chemical and Biochemical Engineering, Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania

2. Department of Organic Chemistry “Costin Neniţescu”, Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania

3. Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania

4. Department of Biotechnologies, Bioresources and Bioproducts for Bioeconomy, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei Street, 060021 Bucharest, Romania

5. Department of Heterogeneous Systems, National Institute for Research and Development in Chemistry and Petrochemistry-ICECHIM, 202 Splaiul Independentei Street, 060021 Bucharest, Romania

Abstract

Ultrasound-assisted extraction (UAE) was applied to extract oil from blackberry (BB) seeds. The effect of UAE conditions on oil recovery and quality was investigated. Favorable experimental conditions (ultrasound intensity (UI), extraction temperature, and time) were investigated using response surface methodology (RSM). A Box–Behnken design was used to predict optimized conditions for BB seed oil extraction. These conditions were as follows: 13.77 W/cm2 UI, 45 °C extraction temperature, and 15 min extraction time. The experimental value obtained for extraction efficiency under optimal conditions was 87 ± 0.34%, in good agreement with the optimized predicted value. UAE does not affect the oil composition and confers higher antioxidant values in BB seed oil in comparison with Soxhlet extraction.

Funder

The Executive Agency for Financing of Higher Education, Research, Development, and Innovation (UEFISCDI) Romania

European Social Fund

Ministry of Research, Innovation, and Digitization

Publisher

MDPI AG

Subject

Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science

Reference76 articles.

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