Influence of pre-treatments on yield,chemical composition and antioxidant activity of Satureja montana extracts obtained by supercritical carbon dioxide |
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| Affiliation: | 1. Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia;2. SP Laboratorija a.d., Industrijska 3, 21220 Bečej, Serbia;1. Faculty of Technology and Metallurgy, University Ss. Cyril and Methodius, Skopje, Macedonia;2. Faculty of Technology in Novi Sad, University of Novi Sad, Serbia;1. Fructus, 21400, Novosadski put 15/2, Bačka Palanka, Serbia;2. Faculty of Technology, University of Novi Sad, 21000, Bulevar Cara Lazara 1, Novi Sad, Serbia;1. Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia;2. CIDAF-Centre for Functional Food Research and Development, Granada, Spain;3. Faculty of Agronomy, University of Kragujevac, Cara Dušana 34, 32000 Čačak, Serbia;1. College of Engineering, Northeast Agricultural University, Harbin 150030, China;2. Guelph Food Research Centre, Agriculture and Agri-Food Canada, Guelph N1G5C9, Canada;1. University of Kragujevac, Faculty of Science, Department of Chemistry, Radoja Domanovića 12, 34000, Kragujevac, Serbia;2. University of Novi Sad, Faculty of Technology, Bulevar Cara Lazara 1, 21000, Novi Sad, Serbia;3. University of Kragujevac, Faculty of Agronomy, Cara Dušana 34, 32000, Čačak, Serbia;4. University of Niš, Faculty of Science and Mathematics, Višegradska 33, 18000, Niš, Serbia;1. Faculty of Technology, University of Novi Sad, Bulevar Cara Lazara 1, 21000 Novi Sad, Serbia;2. CIDAF-Centre for Functional Food Research and Development, Avda Conocimiento 37, 18016 Granada, Spain;3. Faculty of Agronomy, University of Kragujevac, Cara Dušana 34, 32000 Čačak, Serbia |
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| Abstract: | Main objective of this work was to investigate the influence of pre-treatments of Satureja montana herbal material on supercritical extraction process, in terms: influence on extraction yield, composition and antioxidant activity of extracts. Four different pretreatments were investigated: water pre-treatment, ethanol pre-treatment, ultrasound and high pressure pre-treatment. Extraction yields were in the range from 1.68 to 2.35 g/100 g. Pre-treatments with water and ethanol increase the yield of extraction for 25% and 17%, respectively. According to GC/MS results the main compound of obtained extracts was carvacrol. Analyses confirmed that carvacrol content in extracts can be significantly increased by application of pre-treatments. Ultrasound pre-treatment and high pressure pre-treatment yielded highest concentration of carvacrol in extracts (around 66%). Using these two pre-treatments of herbal material, concentration of carvacrol, in extracts obtained by supercritical carbon dioxide extraction, could be increased for around 25%. Antioxidant activity of all extract was very high and in the range of well-known antioxidants. |
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| Keywords: | Supercritical extraction Pretreatments Carvacrol Antioxidants |
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