Tocols in hull-less and hulled barley genotypes grown in contrasting environments

Cavallero, Andrea; Gianinetti, Alberto; Finocchiaro, Franca; Delogu, Giovanni; Stanca, A. M.

doi:10.1016/s0733-5210(03)00072-9

Cited by 57 publications

(67 citation statements)

References 19 publications

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“…Furthermore, lutein and zeaxanthin possibly act together with other bioactive compounds against cancer, cardiovascular risk and other diseases (Wahlqvist & Wattanpenpiaboon, 1998;Mares-Perlman et al, 2002;Calvo, 2005). Vitamin E or tocopherols are also present in markedly concentrations (Cavallero et al, 2004;Andersson et al, 2008).…”

Section: Phytochemicals In Barleymentioning

confidence: 99%

Hulless Barley – A Rediscovered Source for Functional Foods Phytochemical Profile and Soluble Dietary Fibre Content in Naked Barley Varieties and Their Antioxidant Properties

Siebenhandl-Ehn¹,

Kinner²,

Leopold³

et al. 2011

Phytochemicals - Bioactivities and Impact on Health

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Section: Phytochemicals In Barleymentioning

confidence: 99%

Hulless Barley – A Rediscovered Source for Functional Foods Phytochemical Profile and Soluble Dietary Fibre Content in Naked Barley Varieties and Their Antioxidant Properties

Siebenhandl-Ehn¹,

Kinner²,

Leopold³

et al. 2011

Phytochemicals - Bioactivities and Impact on Health

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“…shown that tocotrienols act preventively against the growth and proliferation of several types of carcinogenic cells in humans [5,6].…”

Section: Statistická Analýzamentioning

confidence: 99%

“…Tokotrienoly, zvláště γ-a δ-tokotrienol [5], jsou schopné redukovat sérový LDL cholesterol u člověka. Působí jako inhibitory 3-hydroxy-3-methylglutaryl koenzymu A reduktasy (HMGCoA reduktasa), což je klíčový enzym syntézy cholesterolu v játrech [6]. Za nejúčinnější izomer vitamínu E, pro zpomalení zanášení cév …”

unclassified

“…při ateroskleróze, je pokládán δ-tokotrienol [5]. Současné studie ukazují na to, že tokotrienoly preventivně působí proti bujení a rozšiřo-vání několika typů humánních rakovinných buněk [5,6]. Je zajímavé, že právě v zrnu ječmene je zastoupeno všech osm izomerů vitamínu E, tj.…”

unclassified

“…Je zajímavé, že právě v zrnu ječmene je zastoupeno všech osm izomerů vitamínu E, tj. α-, β+γ-, δ-tokoferoly a α-, β+γ-, δ-tokotrienoly, které chrání obilku před oxidací během skladování a klíčení [6,7,8,9,10], což je důležité pro výrobu sladu. Peterson [8] udává, že v klíčku obilky je obsažen izomer α-tokoferol a menší množství γ-, δ-tokoferolů a β-tokotrienolu.…”

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Variability of activity of vitamin E and its isomers in a barley grain.

Belcredi¹,

Ehrenbergerová²,

Benešová³

et al. 2010

Kvasny Prum

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 1 ÚVODAntioxidační aktivita ječmene je způsobena třemi hlavními fenolickými typy sloučenin: flavan-3-oly (více jak 85 %), hydroskořicovými kyselinami (asi 10 %) a flavony (méně než 5 % celkového obsahu polyfenolů). Mezi další antioxidanty lze zařadit vitamín C a E včetně jeho izomerů tokoferolů a tokotrienolů [1]. Vitamín E předs-tavuje pro člověka esenciální chemickou látku podílející se 3 % na celkové antioxidační kapacitě [2]. Absorpce vitamínu E je závislá na obsahu mastných kyselin v potravě, na žlučových kyselinách, pankreatických enzymech a na obsahu lipidů v plazmě [3], kde je vitamín E transportován asociovaný s lipidovou fází lipoproteinových částic LDL [4]. Tokotrienoly, zvláště γ-a δ-tokotrienol [5], jsou schopné redukovat sérový LDL cholesterol u člověka. Působí jako inhibitory 3-hydroxy-3-methylglutaryl koenzymu A reduktasy (HMGCoA reduktasa), což je klíčový enzym syntézy cholesterolu v játrech [6]. Za nejúčinnější izomer vitamínu E, pro zpomalení zanášení cév Antioxidant activity in barley is caused by three main phenolic-type compounds: flavan-3-ols (more than 85 %), hydrocinnamic acids (ca 10 %) and flavones (less than 5 % of the total polyphenol content). Other antioxidants are vitamin C and vitamin E including its isomers, tocopherols and tocotrienols [1]. In humans, vitamin E represents an essential chemical substance contributing to the total antioxidant capacity with 3 % [2]. Absorption of vitamin E depends on fatty acid content in food, bilious acids, pancreatic enzymes and lipid content in plasma [3] where vitamin E associated with lipoprotein particle lipid phase LDL is transported [4]. Tocotrienols, namely γ-and δ-tocotrienol 88Variabilita aktivity vitamínu E a jeho izomerů v zrnu ječmene Antioxidant activity of vitamin E and content of its individual isomers, tocopherols and tocotrienols, were determined in the set of 12 varieties/lines of barley grain. from which Grain samples for the analyses were collected from the experiments performed in two localities -Žabčice and Kroměříž in 2005 and 2007-2008. The effect of the method used for the grouthreatment (with the application of pesticides and without pesticides) was studied in the locality of Žabčice. The experiments in the locality of Kroměříž were carried out without chemical application, i.e. without the use of the pesticides. A statistically significant effect of the varieties/lines, year and treatment method on the activity of vitamin E was determined. The hull-less line KM 1057 (15.71 mg.kg -1 ) had significantly higher vitamin E activity compared to the whole set (10.23-13.74 mg.kg -1 ) of the non-treated variants of growing. The varieties Prestige, Merlin, Sebastian, and Amulet (13.42-13.74 mg.kg -1 ) also had a high vitamin E activity and they did not differ significantly from the malting variety Malz (13.20 mg.kg -1 ) recommended for the production of Czech Beer. Variabilita aktivity vitamínu E a jeho izomerů v zrnu ječmene Variability of activity of vitamin E and its isomers in a barley grain

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Barley: Genetics and Nutrient Composition

Newman

2008

Barley for Food and Health

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Tocols in hull-less and hulled barley genotypes grown in contrasting environments

Cited by 57 publications

References 19 publications

Hulless Barley – A Rediscovered Source for Functional Foods Phytochemical Profile and Soluble Dietary Fibre Content in Naked Barley Varieties and Their Antioxidant Properties

Hulless Barley – A Rediscovered Source for Functional Foods Phytochemical Profile and Soluble Dietary Fibre Content in Naked Barley Varieties and Their Antioxidant Properties

Variability of activity of vitamin E and its isomers in a barley grain.

Barley: Genetics and Nutrient Composition

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