Naslov
Optimization of ultrasound-assisted solid-liquid extraction for the phenolic acids recovery from barley husk

Autori
Šelo, Gordana ; Planinić, Mirela ; Tišma, Marina ; Grgić, Josipa ; Jukić, Katarina ; Šušak, Ana ; Tomas, Srećko ; Oršolić, Ivan ; Bucić-Kojić, Ana

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

Izvornik
Book of Abstracts 10th International Congress Flour - Bread '19 and 12th Croatian Congress of Cereal Technologists Brašno - Kruh '19 / Jozinović, Antun ; Budžaki, Sandra ; Strelec, Ivica ; Lončarić, Ante - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2019, 43-43

Skup
10th International Congress Flour – Bread ’19 ; 12th Croatian Congress of Cereal Technologists Brašno – Kruh ’19

Mjesto i datum
Osijek, Hrvatska, 11.06.2019. - 14.06.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ultrasound-assisted extraction ; phenolic acids ; barley husk ; response surface methodology

Sažetak
The ultrasound-assisted solid-liquid extraction of phenolic acids from barley husk was optimized using response surface methodology(RSM). A Box- Behnken design was used to investigate the effects of extraction temperature (40-80 °C), solvent concentration(ethanol/water50-90%, v/v), time (10- 30 min) and ultrasonicpower (40-80%), as well as their interaction on the extractability of phenolic acids (3, 4-dihydroxybenzoic, p- hydroxybenzoic acid, p-hydroxyphenylacetic, vanillic, caffeic, syringic, p-coumaric, ferulic, ellagic, o-coumaric acids).Barley husk obtained from winter barley variety“Favorit”(BcInstitute d.d. Zagreb, Croatia)was used.The extraction was performed using the ultrasonic bath at sweep mode and ultrasonic frequency of 37 kHz. Individual phenolic acids from barley husk extracts were quantified by UHPLC and the sumof their content was employed in the optimizationprocedure.RSM analysis showed that solvent concentration had a significant effecton phenolic acids recovery, while the effectsof other factors and their interactions were not significant.The optimal extraction conditions were found to be 80 °C, 50%, v/vethanol/water, 40% ultrasonic power and 10 min. At these conditions, the predicted value ofphenolic acids yield was 134 μg/gdb.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

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