Παρακαλώ χρησιμοποιήστε αυτό το αναγνωριστικό για να παραπέμψετε ή να δημιουργήσετε σύνδεσμο προς αυτό το τεκμήριο:
https://hdl.handle.net/20.500.14279/2191
Τίτλος: | Exploring the Antioxidant Potential of Teucrium Polium Extracts by HPLC-SPE-NMR and On-lineRadical-scavenging Activity Detection |
Συγγραφείς: | Goulas, Vlasios Gomez-Caravaca, Ana María Exarchou, Vassiliki Gerothanassis, Ioannis P. Segura-Carretero, Antonio Gutiérrez, Fernandez |
Major Field of Science: | Agricultural Sciences |
Field Category: | Other Natural Sciences |
Λέξεις-κλειδιά: | Flavonoids;HPLC-DPPH;HPLC-SPE-NMR;Phenylpropanoid glycosides;Plant extracts;Radical-scavenging activity |
Ημερομηνία Έκδοσης: | Απρ-2012 |
Πηγή: | LWT - Food Science and Technology, 2012, vol. 46, no. 1, pp. 104-109 |
Volume: | 46 |
Issue: | 1 |
Start page: | 104 |
End page: | 109 |
Link: | http://www.sciencedirect.com/science/article/pii/S002364381100346X |
Περιοδικό: | LWT-Food Science and Technology |
Περίληψη: | Teucrium polium is a popular medicinal plant that is used in the daily diet and the in vitro and in vivo antioxidant potency of its extracts has been widely investigated. In the present work, polar extracts from T. polium were analyzed in terms of its composition and radical-scavenging activity with the employment of the state-of-the-art HPLC-SPE-NMR and HPLC-DPPH techniques in the search of new antioxidant agents for food industry. NMR and MS data revealed the presence of phenylpropanoid glycosides verbascoside and poliumoside, the flavones apigenin and its derivatives and two methoxyflavones. The on-line DPPH experiments showed that poliumoside is the most active component of the extracts and the antioxidant potential of T. polium polar extracts is mainly attributed to phenylpropanoid glycosides (66-80%). Our results suggested that T. polium extracts could be a promising source of natural antioxidants. This holistic approach also revealed that poliumoside or polar extracts of T. polium can be used in food industry as antioxidant agents with natural origin. The HPLC-SPE-NMR and HPLC-DPPH analysis of the extracts was performed for first time in the same device without any modification of the instrumentation, avoiding the need for isolation of the individual components. |
URI: | https://hdl.handle.net/20.500.14279/2191 |
ISSN: | 236438 |
DOI: | 10.1016/j.lwt.2011.10.019 |
Rights: | © 2011 Elsevier Ltd. All rights reserved |
Type: | Article |
Affiliation: | University of Ioannina |
Affiliation: | University of Ioannina University of Granada |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
CORE Recommender
Sorry the service is unavailable at the moment. Please try again later.
Αυτό το τεκμήριο προστατεύεται από άδεια Άδεια Creative Commons