NATALITA IONESCU (BORDEI), MARIANA POPESCU, AURELIA BRATU, DANIELA ISTRATI, CRISTINA OTT, AURELIA MEGHEA<br>Valuable Romanian Vegetable Oils and Extracts with High Pharmaco-cosmetic Potential

NATALITA IONESCU (BORDEI), MARIANA POPESCU, AURELIA BRATU, DANIELA ISTRATI, CRISTINA OTT, AURELIA MEGHEA
Valuable Romanian Vegetable Oils and Extracts with High Pharmaco-cosmetic Potential

Abstract:

Vegetable oils and plant extracts have captured a special attention due to their high antioxidant potential and also due to the preference of consumers for natural ingredients in many cosmetic products. The main objective of the present study was represented by the obtaining and characterization of active vegetable oils and extracts by using appropriate biotechnological procedure that allows to maintain a high content and bio-cosmetic potential of w-3, -6, -9 and of carotenoids. In this context, several vegetable oils, e.g. hemp, milk thistle, safflower and black cumin oils have been obtained by cold pressing of row materials from native Romanian flora and analyzed by FT-IR spectroscopy, gas chromatography coupled with mass spectrometry (GC-MS) and 1H-RMN in order to establish the profile of unsaturated and polyunsaturated fatty acids. In a further study, two of the previous oils (e.g. safflower and milk thistle oils) have been selected for obtaining and stabilization of carrot extracts with high content in carotenoids. Thus, a rich content of linolenic acid, w-3 and linoleic acid, w-6 (e.g. 78% w-6 in milk thistle oil, 52% w-6 in black cumin oil etc.) and two carrot extracts with a total content of 147 and 187 mg/100 g extract have been obtained in the present study. The in vitro determination of antioxidant activity achieved on various types of vegetable mixtures (e.g. antioxidant activity values over 80%) encourages their further use in developing vegetable lipid nanostructures with valuable cosmetic potential. Keywords: milk thistle oil, black cumin oil, GC-MS, antioxidant activity, carrot extracts

Issue: 2015, Volume 66, Issue 9

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