Determination of natural antioxidants kai inorganic compounts of Superfoods. Antioxidant and antifungal Activity

Postgraduate Thesis uoadl:1449717 681 Read counter

Unit:
Κατεύθυνση Χημεία Τροφίμων
Library of the School of Science
Deposit date:
2017-04-06
Year:
2017
Author:
Roidaki Anna
Supervisors info:
ΠΡΟΕΣΤΟΣ ΧΑΡΑΛΑΜΠΟΣ Επίκουρος καθηγητής ΕΚΠΑ
ΜΑΡΚΑΚΗ ΠΑΝΑΓΙΩΤΑ Αναπληρώτρια καθηγήτρια ΕΚΠΑ
ΑΝΤΩΝΙΑ ΧΙΟΥ Επίκουρη καθηγήτρια Χαροκοπείου Πανεπιστημίου
Original Title:
Προσδιορισμός φυσικών αντιοξειδωτικών και ανόργανων συστατικών σε Υπερτρόφιμα. Μελέτη της αντιοξειδωτικής και αντιμυκητιακής δραστικότητας.
Languages:
Greek
Translated title:
Determination of natural antioxidants kai inorganic compounts of Superfoods. Antioxidant and antifungal Activity
Summary:
Nowadays more and more people are opening up to a healthier way of life and follow a diet that includes foods which promote healthy aging. Some of these foods are superfoods and superherbs that possessed functional health properties beyond its nutritive value. These foods containing exogenous nutrient and phytochemical antioxidants that could protect the human body from damage arising from chronic oxidative stress caused by excessive production of free radicals.
The main purpose of this work was the study of superfoods and superherbs produced in Greece and which consist the raw material for the production of innovative products.In this study, a variety of superfoods cultivated in regions of Greece was investigated for inorganic content and the antioxidant capacity. The antioxidant capacity was determined along with the potential of these superfoods to inhibit the growth of mycotoxigenic fungal was also studied.
Some of the superfoods studied were goji berries (Lycium barbarum), sea buckthorn (Hippophae rhamnoides), chokeberries (aronia), golden berries (Physalis peruviana), rose-hip (Rosa canina).
The antioxidant capacity was measured by spectrophotometric methods (dpph, folin ciocalteau) while phenolic compounds especially anthocyanins were detected by HPLC analysis. Inorganic compounds were qualified by ICP-MS. For the antifungal assay, the aflatoxigenic fungi Aspergillus parasiticusand the ochratoxigenic fungi Aspergillus carbonarius were inoculated in Aspergillus Flavus Parasiticus Agar (AFPA)and in Potato Dextrose Agar (PDA) medium, respectively
Main subject category:
Science
Keywords:
superfoods, superherbs, antioxidant activity, antifungal activity
Index:
Yes
Number of index pages:
3
Contains images:
Yes
Number of references:
97
Number of pages:
137
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