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30,80 €ISBN 978-3-8440-6779-8Softcover116 pages16 figures165 g21 x 14,8 cmEnglishThesis
July 2019
Judith Wittenauer
Characterization of Phenolic Compounds from Riesling Grape Pomace and Mangosteen (Garcinia mangostana L.) for Topical Application
Botanicals have been used throughout history for the treatment of various skin conditions. Nevertheless, sound scientific data about their contribution to dermal health care and their mechanisms of action are scarce. Polyphenol containing plant extracts might be able to prevent skin aging at an early stage, particularly, because the phenolic bioactives are able to scavenge ROS by donating hydrogen atoms out of their hydroxyl groups.
The present work evaluated the suitability of polyphenol-rich extracts from two different plant sources for cosmetic applications. Both, Garcinia mangostana pericarp and Riesling grape pomace accruing from vinification, represent important by-products from food processing for which no value-added valorisation has been implemented in industrial practice up to now. Therefore, utilization of extracts in cosmetics may be a new promising field of application, where the bioactive potential of contained polyphenols can be exploited. Individual phenolic compounds of prepared plant extracts were identified, and the extracts were analysed regarding anti-oxidant properties, inhibition of the skin enzymes collagenase and elastase, and skin penetrating characteristics.
The present work evaluated the suitability of polyphenol-rich extracts from two different plant sources for cosmetic applications. Both, Garcinia mangostana pericarp and Riesling grape pomace accruing from vinification, represent important by-products from food processing for which no value-added valorisation has been implemented in industrial practice up to now. Therefore, utilization of extracts in cosmetics may be a new promising field of application, where the bioactive potential of contained polyphenols can be exploited. Individual phenolic compounds of prepared plant extracts were identified, and the extracts were analysed regarding anti-oxidant properties, inhibition of the skin enzymes collagenase and elastase, and skin penetrating characteristics.
Keywords: polyphenols; grape pomace; xanthones; mangosteen; Garcinia mangostana L.; topical application
Schriftenreihe des Lehrstuhls Lebensmittel pflanzlicher Herkunft
Edited by Prof. Dr. habil. Dr. h. c. Reinhold Carle, Stuttgart
Volume 2019,57
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