Naslov
Polyphenolic Composition, Antioxidant and Antimicrobial Activity of Castanea sativa Mill. Extracts

Autori
Mujić, Ibrahim ; Živković, Jelena ; Zeković, Zoran ; Vidović, Senka ; Mujić, Aida, Jasić, Midhat ; Jokić, Stela

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts // Sixth International Conference of the Chemical Societies of the South-Eastern European Countries / - , 2008

Skup
Sixth International Conference of the Chemical Societies of the South-Eastern European Countries

Mjesto i datum
Sofija, Bugarska, 10.09.2008. - 14.09.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
antioxidant activity; antimicrobial activity; Castanea sativa Mill. extract; HPLC; EPR spectrometry

Sažetak
Castanea sativa Mill. extracts were examined for polyphenolic composition and atioxidant activities using HPLC and EPR spectrometry. Parts of chestnut tree of all three cultivar of sweet chestnut, such as leaf and catkin have been extracted under the same conditions by 50% ethanol as extragens. Total phenolic content has been determined by HPLC and expressed as rutin equivalent (mg RE/1 g of sample). For that analysis acidic hydrolysis of sample was made preliminary. For determination of extract influence to creating and transformation of hydroxide (OH) radicals and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radicals, extracts have been dissolved in distillated water and added to Fenton's model system in concentration of 0.2 mg/ml. High value AA in relation to hydroxyl radicals has turned out catkins from Lovran chestnut (59.09%). The greatest antiradical activity in relation to DPPH radicals has shown the catkin of domestic sweet chestnut (37.50%). The antimicrobial tests showed that ethanol extracts inhibited the growth of tested bacteria.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

POVEZANOST RADA