Naslov
Primjena pektina iz kore mandarine (C. reticulata) u biogenoj sintezi selenovih nanočestica
(Application of mandarin (C. reticulata) peel pectins in biogenic synthesis of selenium nanoparticles)

Autori
Galić, Emerik ; Golub, Nikolina ; Radić, Kristina ; Vitali Čepo, Dubravka ; Kalčec, Nikolina ; Vinković Vrček ; Vinković, Tomislav

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

Izvornik
18. Ružičkini dani "Danas znanost – sutra industrija" - knjiga sažetaka / - , 2020, 29-29

Skup
18. Ružičkini dani "Danas znanost - sutra industrija"

Mjesto i datum
Vukovar, Hrvatska, 16.09.2020. - 18.09.2020

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pektin ; nanočestice selena ; kora mandarine ; biogena sinteza ; antioksidativna aktivnost
(pectin ; selenium nanoparticles ; mandarin peel ; biogenic synthesis ; antioxidant activity)

Sažetak
Mandarin peel has been recognized as the valuable source of functional ingredients such as polyphenols (hesperidin, tangeretin and nobiletin) and dietary fibres (pectin). In this study, we optimized the procedure of extraction and purification of pectin from mandarin peel extract for using raw pectin fraction (RP) and purified pectin fraction (PP) in biogenic synthesis of selenium nanoparticles (bnSeNPs). Obtained SeNPs were compared to chemically synthesised particles (cnSeNPs) in terms of size distribution, zeta potential, stability and functional properties (antiradical and reductive ability). The bnSeNPs stabilized with 0.7 % RP and PP showed particle size distribution comparable to cnSeNPs with average diameter of 230 nm and 290 nm, respectively. Surface charge of bnSeNPs showed more negative values than for cnSeNPs (-35 mV in relation to -10 mV) indicating better stability of obtained colloidal system. Also, in comparison to cnSe, bnSe coated with 0.7 % RP and PP showed significantly higher antioxidant activity (24.5 and 46.3 gTE molSe-1, respectively) in comparison to cnSeNPs (1.91 gTE molSe-1) that were probably associated to polyphenols remaining in pectin fractions. Obtained results revealed the potential of mandarin peel as a source of natural coating materials for development of green synthesis processes of SeNPs achieving improved functional properties.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija, Nutricionizam, Biotehnologija u biomedicini (prirodno područje, biomedicina i zdravstvo, biotehničko područje)

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