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https://open.uns.ac.rs/handle/123456789/11844
Назив: | Polyphenolic composition and antioxidant activities of grape seed extract | Аутори: | Mandić, Anamarija Đilas, Sonja Ćetković, Gordana Čanadanović-Brunet, Jasna Tumbas Šaponjac, Vesna |
Кључне речи: | Grape seed extract;Flavan-3-ol;HPLC;Antioxidant activity;ESR spectrometr;White grape variety | Датум издавања: | 17-нов-2008 | Издавач: | Taylor & Francis Group | Часопис: | International Journal of Food Properties | Сажетак: | Grape seed extracts (GSEs,) obtained from Italian and Rhine Rieslings, were examined for polyphenolic composition and antioxidant activities using HPLC and ESR spectrometry. The seed extraction was carried out with ethyl acetate and ethanol. The contents of polyphenols, flavan-3-ols and antioxidant activities were found to be higher in ethyl acetate than in ethanolic extracts. IC50 values were 0.1045 mg/mL and 0.0599 mg/mL for the stable DPPH radical in ethanolic and ethyl acetate extracts, respectively. The values for the short-lived OH radical were 0.1989 mg/mL and 0.0362 mg/mL, in the given order. The significant correlations between the antioxidant activities of GSEs and polyphenols were established (P 0.05). Owing to their antioxidant activities, the cultivars could be used as a source to produce a GSE. | URI: | https://open.uns.ac.rs/handle/123456789/11844 | ISSN: | 10942912; 15322386 | DOI: | 10.1080/10942910701584260 |
Налази се у колекцијама: | TF Publikacije/Publications |
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