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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Evaluation of in vitro inhibitory activity of rye-buckwheat ginger cakes with rutin on the formation of advanced glycation end-products (AGEs)

100%
Przygodzka M., Zielinski H.
Polish Journal of Food and Nutrition Sciences
|
2015
|
tom 65
|
nr 3
In this study, the relationship between the inhibitory effects of extracts from rye-buckwheat ginger cakes supplemented with low and high rutin dosage baked without or with dough fermentation step on the formation of fluorescent advanced glycation end-products (AGEs), and phenolic compounds, rutin, D-chiro-inositol and antioxidant capacity were addressed. The cakes were based on rye flour substituted by light buckwheat flour or flour from roasted buckwheat groats at 30% level, and were produced with or without dough fermentation step. The inhibitory effect against AGEs formation was studied in bovine serum albumin (BSA)-glucose and BSA-methylglyoxal (MGO) systems. The antioxidant capacity was measured by 2,2-diphenyl--1-picrylhydrazyl (DPPH) and cyclic voltammetry (CV), rutin and D-chiro-inositol contents by HPLC and total phenolics (TPC) by spectrophotometry assays. The study showed the inhibitory effects of extracts from rye-buckwheat ginger cakes supplemented with low and high rutin dosage. The results of the inhibitory activity were highly correlated in two applied model systems. Enrichment of rye-buckwheat ginger cakes with rutin improved their antioxidant properties. The correlation studies showed that the inhibitory effects of rye-buckwheat ginger cakes produced with dough fermentation step and enhanced with rutin against formation of AGEs were highly correlated with TPC, rutin and D-chiroinositol contents, and antioxidant capacity. Moreover, the effect of rutin enrichment was clearly seen in cakes obtained with dough fermentation step, even the inhibitory activity was slightly lower as compared to the cakes produced without dough fermentation.
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Antioxidant activity of rye bread enriched with milled buckwheat groats fractions

86%
Zmijewski M., Sokol-Letowska A., Pejcz E., Orzel D.
Roczniki Państwowego Zakładu Higieny
|
2015
|
tom 66
|
nr 2
Background. Buckwheat, despite its broad nutritional benefits, is still not widely appreciated grain. It contains a protein with preferred amino acid composition and it is a valuable source of micronutrients and vitamins of the B group and vitamin E. Moreover, buckwheat groats have a high amount of polyphenols, including flavonoids and flavones. Eating rye bread is beneficial due to its high content of dietary fiber, phenolic acids and characteristic taste and aroma. Therefore, the use of rye flour and buckwheat mill products for bread may allow obtaining a product of high nutritional value and flavor. Objective. The aim of the study was to evaluate the influence of buckwheat products addition and baking process on the antioxidant properties of rye-buckwheat blends and breads. Material and methods. Experimental material was rye flour type 580 and buckwheat flour, wholegrain flour and bran obtained by grinding buckwheat groats. Buckwheat products share was 20 and 35%. The control was the rye flour. In the rye-buckwheat blends and bread loaves, the contents of selected flavonoids by HPLC method, total polyphenols content by Folin-Ciocalteu method and the antioxidant activity by the DPPH˙ radical scavenging method were determined. Results. Buckwheat bran was significantly richer in total polyphenols, rutin, quercetin, orientin and isoorientin than other buckwheat products and rye flour. Bread after baking contained similar amount of total polyphenols and quercetin and have a comparable ability to scavenge 1,1diphenyl-2-picrylhydrazyl radicals (DPPH˙) than the corresponding blends. Baking process negatively affected the amount of rutin, orientin and isoorientin. Conclusions. The use of buckwheat bran as a replacement for wheat flour in bread significantly increases its nutritional value. The process of baking unequally affects the content of particular groups of antioxidant compounds.
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Modulation of rutin-mediated alleviation of heavy metal-induced oxidative stress in Zygophyllum fabago

72%
Ozfidan-Konakci C., Yildiztugay E., Kucukoduk M.
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
|
2013
|
tom 94
|
nr 2
4
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Hypolipidemic action of rutin on triton WR-1339-induced hyperlipidemia in rats

72%
Livingston Raja N. R., Nair A. R., Senthilpandian S., Ravi V.
Journal of Pre-Clinical and Clinical Research
|
2021
|
tom 15
|
nr 2
5

Effect of presence of surfactants on results of quantitative determination of flavonoids

72%
Wieloch A., Zielinski R.
Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze
|
2009
|
nr 1
39-49
6
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Determination of the antioxidant activity of rutin and its contribution to the antioxidant capacity of diversified buckwheat origin material by updated analytical strategies

72%
Zielinska D., Szawara-Nowak D., Zielinski H.
Polish Journal of Food and Nutrition Sciences
|
2010
|
tom 60
|
nr 4
The antioxidant activity of rutin and selected common buckwheat-originated materials, namely groat, hull, flour and sprouts were measured against stable, non-biological radicals such as 2,2’-azinobis-(3-ethylbenzothiazoline-6-sulphonate) radical cation (ABTS•+) and 2,2-diphenyl-1-picrylhydrazyl radical (DPPH•) using a spectrophotometric assay, against the key reactive oxygen intermediate – superoxide anion radical (O2 –•) with a photochemiluminescence assay (PCL) while reducing capacity was determined with the cyclic voltammetry method (CV). The antioxidant activity was presented independently of the techniques used as TEAC values and then the contribution of rutin to the antioxidant capacity of buckwheat material was calculated. The order of the antioxidant activity of rutin provided by the updated analytical strategy was as follows: CV = DPPH RSA > PCL > ABTS RSA. Buckwheat groat and hull represented low antioxidant capacity samples whilst that of sprouts was ranked as high antioxidant capacity one. The results showed a low contribution of rutin to the antioxidant capacity of buckwheat groat and hull. The highest contribution of rutin to the antioxidant capacity was noted in buckwheat sprouts, especially those produced in light. The specificity of the rank of methods used as CV = DPPH RSA > ABTS RSA > PCL was concluded since the lowest antioxidant gap was provided with CV and DPPH RSA whilst the highest one with ABTS RSA and PCL.
7

Flavonoid metal complexes used as antitoxic agents against heavy metals contamination

72%
Roncea F., Istudor V., Bratu M. M., Negreanu-Pirjol T.
Journal of Elementology
|
2005
|
tom 10
|
nr 4 Suppl.1
87
8

Effect of sowing date and application of foliar fertilizers on the yield and chemical composition of rue [Ruta graveolens L.] herb

72%
El-Sherbeny S. E., Khalil M. Y., Hussein M. S., Aly M. S.
Herba Polonica
|
2008
|
tom 54
|
nr 1
The present investigation was conducted during two successive seasons of 2004/2005 and 2005/2006 in order to study the effect of two different sowing times and two macro- and microfoliar fertilizers on yield and chemical composition of Ruta graveolens plants. Delay in sowing from 20 October to 20 November resulted in significant promotion for herb dry weight (g/m2) as well as percentage and yield of essential oil of herb. In contrast, the accumulation of rutin and coumarin contents was higher at the first sowing time than the second one. The main constituent of essential oil in herb was identified as 2-undecanone. It represented 60.74% of identified herb essential oil at first sowing date and decreased to 55.88% at second date. Both foliar fertilizers, Crestalon and Leaf drip, promoted herb dry weight. Leaf drip was more favorable to improve these criteria than Crestalon. In general, the highest content of essential oil, rutin and coumarin were recorded with application of 1000 or 2000 ppm of Leaf drip. The maximum yield of herb and essential oil resulted in plants of the second date of sowing and fertilized with Leaf drip at 2000 ppm.
9

Wplyw rutyny i kompleksu ethoxyquin-rutyna na trwalosc oleju wiesiolkowego

58%
Skolimowska U., Wedzisz A.
Bromatologia i Chemia Toksykologiczna
|
2004
|
tom 37
|
nr 3
225-230
Prześledzono wpływ rutyny i kompleksu ethoxyquin-rutyna (EQ-R) na proces utleniania oleju wiesiołkowego. Stwierdzono, że skuteczniejszym przeciwutleniaczem jest kompleks EQ-R.
10
Content available remote

The inhibitory effect of polyphenols on human gut microbiota

58%
Duda-Chodak A.
Journal of Physiology and Pharmacology
|
2012
|
tom 63
|
nr 5
11

Extract from chicory (Cichorium intybus L.) seeds improves glycemia, atherogenic index and antioxidant status in rats

58%
Jurgonski A., Juskiewicz J., Zdunczyk Z., Krol B.
Polish Journal of Food and Nutrition Sciences
|
2011
|
tom 61
|
nr Suppl.1
12

Effects of Cu2plus, cytokinins and jasmonate on content of two flavonols identified in zucchini cotyledons

58%
Stoynova-Bakalova E., Nikolova M., Maksymiec W.
Acta Biologica Cracoviensia. Series Botanica
|
2009
|
tom 51
|
nr 2
77-83
This study examined the effects of cytokinins and methyl jasmonate (JAMe) alone and in combination on the growth and flavonol content of zucchini cotyledons cultured in the presence or absence of Cu2+. During greening of cotyledons in intensive diurnal illumination, rutin was identified as the main flavonol compound. Its accumulation was greatly stimulated by phenylurea cytokinin (4PU-30) but reduced by Cu2+. Stimulation by benzylaminopurine (BA) was less. JAMe showed an inhibitory effect, alone and with simultaneous addition of Cu2+ or cytokinins. In moderate excess (100 μM and 250 μM CuSO4), Cu2+ enhanced stimulation by 4PU-30 of rutin accumulation; at a higher concentration or with other substances it decreased the rutin level. The other flavonol detected, kaempferol-3-rhamnoside, increased after JAMe or 4PU-30 were added; in the other cases it decreased. The data obtained indicate that cytokinins can increase rutin content in developing Cucurbita cotyledons. Rutin content usually decreased under stress induced by excess Cu2+, but Cu2+ in moderate excess had a stimulating effect in the presence of higher phenylurea cytokinin levels
13

Food flavonoids

58%
Wiczkowski W., Piskula M. K.
Polish Journal of Food and Nutrition Sciences
|
2004
|
tom 13/54
|
nr Spec.Issue 1
14

Rosliny z rodzaju Forsythia jako zrodlo naturalnych antyoksydantow i fitoestrogenow

51%
Tokar M., Klimek B.
Bromatologia i Chemia Toksykologiczna
|
2007
|
tom 40
|
nr 1
45-55
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