Please use this identifier to cite or link to this item:
https://open.uns.ac.rs/handle/123456789/5663
Title: | Determination of natural phenols after microwave-assisted extraction | Authors: | Švarc-Gajić, Jaroslava Stojanović, Zorica Carretero, Antonio Segura Kravić, Snežana Román, David Arráez Borrás, Isabel |
Issue Date: | 2012 | Publisher: | Novi Sad: University of Novi Sad, Institute of Food Technology | Journal: | Proceedings of 6th Central European Congress on Food - CEFood 2012 | Conference: | 6th Central European Congress on Food - CEFood 2012 | Abstract: | Natural phenols are synthetized by large group of plants where they play an important role in plant metabolism and protection against pests. These compounds, in addition to being indispensable in plant metabolism, also exhibit complex biological activity in humans for what they are constantly in the focus of scientific interest. The aim of this study was to modify standard spectrophotometric method for polyphenols determination. Modification included application and optimization of microwave-assisted extraction which significantly reduced sample preparation time and improved extraction yields. Furthermore the goal of this study was to improve determination sensitivity by applying differential spectrophotometric measurement. Optimized analytical method was implied to determine anthocyanins, neutral and total polyphenols in different fruit and vegetable samples, as well as in cakes remaining after oil extraction of several oilseeds. Purification of extracts and fractionation of polyphenols to different classes was performed by using solid phase extraction. Individual acidic and neutral polyphenolic compounds were identified in plant extracts by thin layer chromatography. | URI: | https://open.uns.ac.rs/handle/123456789/5663 | ISBN: | 9788679940278 |
Appears in Collections: | TF Publikacije/Publications |
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.