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Statements

Subject Item
n2:RIV%2F60460709%3A41210%2F03%3A00005430%21RIV%2F2004%2FMSM%2F412104%2FN
rdf:type
n13:Vysledek skos:Concept
dcterms:description
In this study polyphenolic antioxidant compounds in three onion varieties (red - cv. Karmen, yellow - cv. Všetana and white - cv. Ala) regarding their total content and qualitative composition of flavonoid complex were studied. Also the effects of temperature and storage period during storage of onion were studied. The total content of polyphenols was estimated spectrophotometrically with Folin-Ciocalteau´s phenolic reagent and individual flavonoid components by HPLC method using Waters TM chromatograph on Watrex 250x4 mm Sepharon SGX C18 7mm column with gradient elution. The highest amount of polyphenolic compounds was found in red variety Karmen (108,300 mg.kg-1 DM), the lowest amount in white variety Ala (26,445 mg.kg-1 DM), meanwhile the yellow variety Všetana had average content of total polyphenolic compounds 65,210 mg.kg-1 DM. An increase of total polyphenols during storage in red and yellow varieties was found, esp. during storage at laboratory temperature (22 0C). Among flavonoid and polyph In this study polyphenolic antioxidant compounds in three onion varieties (red - cv. Karmen, yellow - cv. Všetana and white - cv. Ala) regarding their total content and qualitative composition of flavonoid complex were studied. Also the effects of temperature and storage period during storage of onion were studied. The total content of polyphenols was estimated spectrophotometrically with Folin-Ciocalteau´s phenolic reagent and individual flavonoid components by HPLC method using Waters TM chromatograph on Watrex 250x4 mm Sepharon SGX C18 7mm column with gradient elution. The highest amount of polyphenolic compounds was found in red variety Karmen (108,300 mg.kg-1 DM), the lowest amount in white variety Ala (26,445 mg.kg-1 DM), meanwhile the yellow variety Všetana had average content of total polyphenolic compounds 65,210 mg.kg-1 DM. An increase of total polyphenols during storage in red and yellow varieties was found, esp. during storage at laboratory temperature (22 0C). Among flavonoid and polyph
dcterms:title
Total polyphenol and main flavonoid antioxidats in different onion (Allium cepa L.) varieties Total polyphenol and main flavonoid antioxidats in different onion (Allium cepa L.) varieties
skos:prefLabel
Total polyphenol and main flavonoid antioxidats in different onion (Allium cepa L.) varieties Total polyphenol and main flavonoid antioxidats in different onion (Allium cepa L.) varieties
skos:notation
RIV/60460709:41210/03:00005430!RIV/2004/MSM/412104/N
n3:strany
142-147
n3:aktivita
n9:Z
n3:aktivity
Z(MSM 412100002)
n3:cisloPeriodika
4
n3:dodaniDat
n7:2004
n3:domaciTvurceVysledku
n6:4412222 n6:6375421 n6:7221053 n6:8081883 n6:5040663
n3:druhVysledku
n18:J
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
631170
n3:idVysledku
RIV/60460709:41210/03:00005430
n3:jazykVysledku
n17:eng
n3:klicovaSlova
cibule; červené, žluté a bílé odrůdy; polyfenoly; spiraeosid; rutin; kvercetin; meziodrůdové rozdíly; změny během skladování
n3:klicoveSlovo
n5:kvercetin n5:zm%C4%9Bny%20b%C4%9Bhem%20skladov%C3%A1n%C3%AD n5:polyfenoly n5:cibule n5:spiraeosid n5:%C5%BElut%C3%A9%20a%20b%C3%ADl%C3%A9%20odr%C5%AFdy n5:%C4%8Derven%C3%A9 n5:meziodr%C5%AFdov%C3%A9%20rozd%C3%ADly n5:rutin
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[D9551CE0A6FA]
n3:nazevZdroje
Zahradnictví (Horticultural Science)
n3:obor
n12:GM
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
6
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n7:2003
n3:svazekPeriodika
30
n3:tvurceVysledku
Faitová, Kateřina Proněk, David Dudjak, Jiří Pivec, Vladimír Lachman, Jaromír Hejtmánková, Alena
n3:zamer
n4:MSM%20412100002
s:issn
0862-867X
s:numberOfPages
5
n16:organizacniJednotka
41210