{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T09:11:56Z","timestamp":1790759516383,"version":"4.1.0"},"reference-count":36,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2007,5,2]],"date-time":"2007-05-02T00:00:00Z","timestamp":1178064000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>The antioxidant and antimicrobial activity of methanol or dichloromethane extracts of O. dictamnus, produced from wild and organic cultivated specimens, were determined. The Rancimat and malondialdehyde (MDA) by HPLC methods were used to measure the antioxidant action, in comparison with that of the common commercial antioxidants butylated hydroxytoluene (BHT) and \u03b1-tocopherol. The extracts that presented high antioxidant activity were encapsulated in liposomes and their antioxidant action was again estimated using differential scanning calorimetry (DSC). Thermaloxidative decomposition of the samples (pure liposomes and encapsulated extracts) and the modification of the main transition temperature for the lipid mixture and the splitting of the calorimetric peak in the presence of the antioxidants were also studied by the DSC method. All extracts showed antioxidant and antimicrobial activities. Their action proved superior to \u03b1-tocopherol. The methanol extract of organic cultivated O. dictamnus (240 ppm) showed higher activity than butylated hydroxytoluene. After encapsulation in liposomes the antioxidant as well as antimicrobial activities proved to be higher than those of the same extracts in pure form.<\/jats:p>","DOI":"10.3390\/12050932","type":"journal-article","created":{"date-parts":[[2008,10,25]],"date-time":"2008-10-25T13:32:11Z","timestamp":1224941531000},"page":"932-945","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":100,"title":["Evaluation of the Antimicrobial and Antioxidant Activities of Origanum dictamnus Extracts before and after Encapsulation in Liposomes"],"prefix":"10.3390","volume":"12","author":[{"given":"Olga","family":"Gortzi","sequence":"first","affiliation":[{"name":"Department of Food Technology, Technological Educational Institution (T.E.I.) of Larissa, (Karditsa Annex), Terma N. Temponera str., GR-43100, Karditsa, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stavros","family":"Lala","sequence":"additional","affiliation":[{"name":"Department of Food Technology, Technological Educational Institution (T.E.I.) of Larissa, (Karditsa Annex), Terma N. Temponera str., GR-43100, Karditsa, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ioanna","family":"Chinou","sequence":"additional","affiliation":[{"name":"Department of Pharmacy, Division of Pharmacognosy, Chemistry of Natural products, University of Athens, Panepistimiopolis Zografou, GR-15771, Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John","family":"Tsaknis","sequence":"additional","affiliation":[{"name":"Department of Food Technology, Technological Educational Institution (T.E.I.) of Athens, Ag. Spyridonos str., GR-12210, Egaleo, Athens, Greece"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2007,5,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"551","DOI":"10.1007\/s002170100288","article-title":"The effects of stabilised extracts of sage and oregano on the oxidation of salad dressings","volume":"212","author":"Abdalla","year":"2001","journal-title":"Europ. Food Res. Technol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"549","DOI":"10.1093\/ecam\/neh131","article-title":"Fertilization-induced changes in growth parameters and antioxidant activity of medicinal plants used in traditional Arab medicine","volume":"2","author":"Azaizeh","year":"2005","journal-title":"Evid. Based Complement. Alternat. 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