Optimisation of Microwave-Assisted Extraction of Pomegranate (Punica granatum L.) Seed Oil and Evaluation of Its Physicochemical and Bioactive Properties
| Autor: | Derya Koçak Yanık, Uğur Gök, Hasene Keskin Çavdar, Fahrettin Göğüş |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
General Chemical Engineering
lcsh:Biotechnology Industrial and Manufacturing Engineering chemistry.chemical_compound microwave-assisted solvent extraction 0404 agricultural biotechnology lcsh:TP248.13-248.65 Botany Response surface methodology Original Scientific Papers chemistry.chemical_classification extraction optimisation Punicic acid Chromatography biology lcsh:TP368-456 Chemistry Extraction (chemistry) Fatty acid 04 agricultural and veterinary sciences biology.organism_classification 040401 food science pomegranate seed oil Solvent lcsh:Food processing and manufacture bioactive properties Yield (chemistry) Punica Particle size Food Science Biotechnology |
| Zdroj: | Food Technology and Biotechnology, Vol 55, Iss 1, Pp 86-94 (2017) |
| ISSN: | 1334-2606 1330-9862 |
| Popis: | Pomegranate seed oil was extracted in a closed-vessel high-pressure microwave system. The characteristics of the obtained oil, such as fatty acid composition, free fatty acidity, total phenolic content, antioxidant activity and colour, were compared to those of the oil obtained by cold solvent extraction. Response surface methodology was applied to optimise extraction conditions: power (176–300 W), time (5–20 min), particle size (d=0.125–0.800 mm) and solvent to sample ratio (2:1, 6:1 and 10:1, by mass). The predicted highest extraction yield (35.19 %) was obtained using microwave power of 220 W, particle size in the range of d=0.125–0.450 mm and solvent-to-sample ratio of 10:1 (by mass) in 5 min extraction time. Microwave-assisted solvent extraction (MASE) resulted in higher extraction yield than that of Soxhlet (34.70 % in 8 h) or cold (17.50 % in 8 h) extraction. The dominant fatty acid of pomegranate seed oil was punicic acid (86 %) irrespective of the extraction method. Oil obtained by MASE had bett er physicochemical properties, total phenolic content and antioxidant activity than the oil obtained by cold solvent extraction. |
| Databáze: | OpenAIRE |
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