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Pregled bibliografske jedinice broj: 1080532

Extraction and separation of polyphenol classes in chokeberry and elderberry fruit

Ištuk, Jozo; Jakobek, Lidija; Strelec, Ivica
Extraction and separation of polyphenol classes in chokeberry and elderberry fruit // Book of abstract of 18 Ružička days, Today Science - Tomorrow inddustry / Jukić, Ante (ur.).
Zagreb : Osijek: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2020. str. 33-33 (poster, međunarodna recenzija, sažetak, znanstveni)

CROSBI ID: 1080532 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Extraction and separation of polyphenol classes in chokeberry and elderberry fruit

Autori
Ištuk, Jozo ; Jakobek, Lidija ; Strelec, Ivica

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

Izvornik
Book of abstract of 18 Ružička days, Today Science - Tomorrow inddustry / Jukić, Ante - Zagreb : Osijek : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2020, 33-33

ISBN
978-953-7005-72-6

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
berries ; polyphenols ; extraction ; separation ;

Sažetak
Chokeberry (Aronia melanocarpa) and elderberry (Sambucus nigra L.) fruits are one of the richest dietary sources of polyphenols, a natural bioactive compounds. Anthocyanins are the most prevalent polyphenols in these fruits although other classes such as phenolic acids, flavonols, and flavanols are present as well. Those phenolic subgroups can show different bioactivities. That is why it can often be apropriate to examine bioactivities of these subgroups separately. The aim of this study was to to extract and determine polyphenols from chokeberry and elderberry and to separate polyphenol subgroups present in the extracts. The extraction was conducted using 80 % methanol as a solvent with the help of ultrasonic bath, and repeating the extraction step four times. Polyphenol subgroups found in extracts were separated using gel chromatography fractionation with Sephadex LH-20 as a stationary phase and different percentages of methanol in water as a mobile phase. Polyphenols in extracts and fractions were analysed using reversed-phase high performance liquid chromatography (RP- HPLC). The amount of polyphenols extracted from chokeberries and elderberries was 15557 and 10009 mg kg-1 of fresh fruit weight, respectively. Four fractions were separated for each fruit. Flavanols were eluted in fraction 1 (100 % and 100 %) and phenolic acids in fraction 2 (100 % and 100 %), anthocyanins were dominant in fraction 3 (91 % and 55 %), while flavonols were prevalent in fraction 4 (53 % and 100 %) for chokeberry and elderberry, respectively. Using gel-chromatography fractionation, four fractions containg different polyphenol subgroups were seeparated which could be useful in further research.

Izvorni jezik
Engleski

Znanstvena područja
Prehrambena tehnologija



POVEZANOST RADA

Projekti:
HRZZ-IP-2016-06-6777 - Utjecaj prehrambenih vlakana na bioraspoloživost polifenola istraživanjem adsorpcije i simuliranih probavnih procesa, in vitro (BIO-POLIFENOL) (Jakobek Barron, Lidija, HRZZ ) ( CroRIS)

Ustanove:
Prehrambeno-tehnološki fakultet, Osijek

Profili:

Avatar Url Ivica Strelec (autor)

Avatar Url Jozo Ištuk (autor)

Avatar Url Lidija Jakobek Barron (autor)

Poveznice na cjeloviti tekst rada:

Pristup cjelovitom tekstu rada www.hdki.hr

Citiraj ovu publikaciju:

Ištuk, Jozo; Jakobek, Lidija; Strelec, Ivica
Extraction and separation of polyphenol classes in chokeberry and elderberry fruit // Book of abstract of 18 Ružička days, Today Science - Tomorrow inddustry / Jukić, Ante (ur.).
Zagreb : Osijek: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2020. str. 33-33 (poster, međunarodna recenzija, sažetak, znanstveni)
Ištuk, J., Jakobek, L. & Strelec, I. (2020) Extraction and separation of polyphenol classes in chokeberry and elderberry fruit. U: Jukić, A. (ur.)Book of abstract of 18 Ružička days, Today Science - Tomorrow inddustry.
@article{article, author = {I\v{s}tuk, Jozo and Jakobek, Lidija and Strelec, Ivica}, editor = {Juki\'{c}, A.}, year = {2020}, pages = {33-33}, keywords = {berries, polyphenols, extraction, separation, }, isbn = {978-953-7005-72-6}, title = {Extraction and separation of polyphenol classes in chokeberry and elderberry fruit}, keyword = {berries, polyphenols, extraction, separation, }, publisher = {Hrvatsko dru\v{s}tvo kemijskih in\v{z}enjera i tehnologa (HDKI) ; Prehrambeno tehnolo\v{s}ki fakultet Sveu\v{c}ili\v{s}ta Josipa Jurja Strossmayera u Osijeku}, publisherplace = {Vukovar, Hrvatska} }
@article{article, author = {I\v{s}tuk, Jozo and Jakobek, Lidija and Strelec, Ivica}, editor = {Juki\'{c}, A.}, year = {2020}, pages = {33-33}, keywords = {berries, polyphenols, extraction, separation, }, isbn = {978-953-7005-72-6}, title = {Extraction and separation of polyphenol classes in chokeberry and elderberry fruit}, keyword = {berries, polyphenols, extraction, separation, }, publisher = {Hrvatsko dru\v{s}tvo kemijskih in\v{z}enjera i tehnologa (HDKI) ; Prehrambeno tehnolo\v{s}ki fakultet Sveu\v{c}ili\v{s}ta Josipa Jurja Strossmayera u Osijeku}, publisherplace = {Vukovar, Hrvatska} }

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