Naslov
Valorization of bilberry pomace for potential use in functional food production

Autori
Putnik, Predrag ; Palac Bešlić, Iva ; Krivohlavek, Adela ; Ivešić, Martina ; Mandić Andačić, Ivana ; Duralija, Boris ; Bebek Markovinović, Anica ; Bursać Kovačević, Danijela

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

Izvornik
Book of Abstracts of 13th International Scientific and Professional Conference WITH FOOD TO HEALTH / Babić, Jurislav ; Šubarić, Drago ; Jašić, Midhat - Osijek : Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku ; Tehnološki fakultet Univerziteta u Tuzli, 2021, 60-60

ISBN
978-953-7005-79-5

Skup
13. međunarodni znanstveno-stručni skup: hranom do zdravlja = 13th International Scientific and Professional Conference: With food to health

Mjesto i datum
Osijek, Hrvatska, 16.09.2021. - 17.09.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
bilberry pomace ; Vaccinium myrtillus L. ; phenolic compounds ; green extraction ; functional food

Sažetak
The by-products of bilberries that remain after processing consist of the pericarp and seeds, which are excellent raw materials for further use, especially for the isolation of biologically active compounds (BACs) and incorporation into functional foods. Recently, green extraction methods based on the concept of environmental sustainability have been developed to extract BACs from various fruit by-products. Accordingly, the aim of this work was to evaluate the use of green extraction methods such as pressurized liquid extraction (PLE) in the valorisation of bilberry pomace obtained from Vaccinium myrtillus L. after pressing into juice. PLE was performed using water as extraction solvent with variation of static extraction time (5, 10, 15 min), temperature (40, 80, 120 °C) and number of cycles (1, 2, 3). A total of three flavonoids (catechin, quercetin-3-rutinoside and quercetin-3-galactoside) and four hydroxycinnamic acids (chlorogenic, caffeic, p-coumaric and ferulic acids) were identified and quantified by HPLC-DAD analysis. The obtained results showed that quercetin derivatives were the predominant polyphenolic compounds found in the bilberry pomace extracts. Multivariate statistical analysis was performed to optimize the PLE parameters with the highest BACs yields. In conclusion, increased the temperature, static time and number of extraction cycles significantly reduced the yield of all phenolic compounds.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija

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