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Karakashov, Blagoj, Grigorakis, Spyros, Loupassaki, Sofia, Mourtzinos, Ioannis, Makris, Dimitris P.. (1394). Optimisation of organic solvent-free polyphenol extraction from Hypericum triquetrifolium Turra using Box–Behnken experimental design and kinetics. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6(2), 85-92. doi: https://doi.org/10.1007/s40090-015-0034-z
Blagoj Karakashov; Spyros Grigorakis; Sofia Loupassaki; Ioannis Mourtzinos; Dimitris P. Makris. "Optimisation of organic solvent-free polyphenol extraction from Hypericum triquetrifolium Turra using Box–Behnken experimental design and kinetics". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6, 2, 1394, 85-92. doi: https://doi.org/10.1007/s40090-015-0034-z
Karakashov, Blagoj, Grigorakis, Spyros, Loupassaki, Sofia, Mourtzinos, Ioannis, Makris, Dimitris P.. (1394). 'Optimisation of organic solvent-free polyphenol extraction from Hypericum triquetrifolium Turra using Box–Behnken experimental design and kinetics', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 6(2), pp. 85-92. doi: https://doi.org/10.1007/s40090-015-0034-z
Karakashov, Blagoj, Grigorakis, Spyros, Loupassaki, Sofia, Mourtzinos, Ioannis, Makris, Dimitris P.. Optimisation of organic solvent-free polyphenol extraction from Hypericum triquetrifolium Turra using Box–Behnken experimental design and kinetics. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1394; 6(2): 85-92. doi: https://doi.org/10.1007/s40090-015-0034-z

Optimisation of organic solvent-free polyphenol extraction from Hypericum triquetrifolium Turra using Box–Behnken experimental design and kinetics

International Journal of Industrial Chemistry
دوره 6، شماره 2، شهریور 2015، صفحه 85-92
نوع مقاله: research article
شناسه دیجیتال (DOI): https://doi.org/10.1007/s40090-015-0034-z
نویسندگان
Blagoj Karakashov1؛ Spyros Grigorakis1؛ Sofia Loupassaki1؛ Ioannis Mourtzinos2؛ Dimitris P. Makris* 3
1Food Quality and Chemistry of Natural Products, Mediterranean Agronomic Institute of Chania (M. A. I. Ch.), Centre International de Hautes Etudes Agronomiques Méditerranéennes, P.O. Box 85, Chania, 73100, Greece
2Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, P.O. Box 235, Thessaloníki, 54124, Greece
3School of Environment, University of the Aegean, Mitr. Ioakim Street Myrina, 81400, Lemnos, Greece
چکیده
Hypericum triquetrifolium Turra is a plant rich in biologically functional polyphenolic phytochemicals. The efficient recovery of polyphenols from this material has not been previously investigated in depth, in terms of establishing an environmentally benign and cost-effective process that would aim at producing extracts enriched in polyphenolic compounds. The objective of the present study was the examination of the efficiency of water/glycerol mixtures in extracting polyphenols from dried aerial parts of H. triquetrifolium Turra and its critical comparison with water. Extraction temperature and time were optimised using response surface methodology, while comparative assessment of the extraction efficiency between water/glycerol and water was carried out using kinetics. The results showed that 10 % (w/v) aqueous glycerol at 70 °C provided very satisfactory extraction yield in total polyphenols (54.83 mg gallic acid equivalents per g of dry weight), which was significantly higher than that attained with water (17.3 %). Similar results were drawn for the reducing power, in concurrence with the polyphenolic concentration. Liquid chromatography–mass spectrometry analysis showed that the polyphenolic profile of water/glycerol extract was composed by polar substances, such as chlorogenic acids and quercetin glycosides.
کلیدواژه‌ها
Extraction؛ Glycerol؛ Hypericum triquetrifolium Turra؛ Polyphenols
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تعداد مشاهده مقاله: 15


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