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Intake and profile of plant polyphenols in the diet of the Czech population

100%

Zloch Z., Sedlacek P., Langmajerova J., Mullerova D.

Polish Journal of Food and Nutrition Sciences

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2018

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tom 68

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nr 1

Nowadays, a great attention is paid to the biological activity of plant polyphenols and their potential importance for the human health. Therefore knowledge regarding the dietary intake of polyphenols and their particular subclasses has gained interest. In this report, the results of a pilot study evaluating the average polyphenol content in the Czech diet have been presented. Knowledge of the average intake of plant polyphenols is an important contribution to the evaluation of the dietary pattern from the aspect of its health impact. An annual average consumption of the main foods of plant origin (a total of 80 commodities) was estimated, using data from the Czech annual statistical report, in the entire Czech population in 2013. These values (kg/y) were multiplied with the contents of plant polyphenols in the same items as presented in the in the database Phenol Explorer. The average intake of plant polyphenols was 426 mg/d. The prevailing polyphenols were chlorogenic acid, 82 mg/d (most important sources were potatoes, coffee, plums), followed by apigeninfl avone, 79 mg/d (wheat), heneicosylresorcinol, 38 mg/d (wheat), ferrulic acid, 17 mg/d (wheat) and anthocyanin malvidin, 13 mg/d (red wine). These values are below the intake of polyphenols in the most EU countries. These differences reflect – interalia – the fact that beer having low content of polyphenols is a dominant commodity in Czech dietary pattern while fruit and vegetables as well as teas and coffee consumption is relatively low.

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Effect of biotic elicitors on polyphenol production in Cayratia trifolia cell suspension cultures analyzed by HPLC

100%

Arora J., Joshi A., Kanthaliya B., Khan F.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2020

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tom 101

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nr 1

3

The antioxidative activity of some plant polyphenols

86%

Sroka Z., Rzadkowska-Bodalska H.

Biophysics of Membrane Transport

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1994

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tom 12

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nr 2

4

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

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2005

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tom 10

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nr 4 Suppl.1

87

5

Wlasciwosci antyoksydacyjne nowych koncentratow spozywczych z udzialem preparowanej fasoli kolorowej 'Red Kidney'

58%

Kulczak M., Przygonski K., Jezewska M., Blasinska I., Luczak H.

Bromatologia i Chemia Toksykologiczna

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2008

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tom 41

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nr 3

293-297

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Struktura i wlasciwosci antyoksydacyjne polifenoli ziarna kawowego

51%

Budryn G., Nebesny E.

Bromatologia i Chemia Toksykologiczna

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2005

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tom 38

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nr 3

203-209

This paper reports results of studies on coffee polyphenols, including their content in coffee beans, relevant chemical reactions occurring during roasting, and antioxidative properties of individual polyphenol compounds and coffee brews. Potential application of coffee extracts as natural antioxidants, providing longer shelf-life of foodstuffs has been also reported.

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Interaction between plant polyphenols and the erythrocyte membrane

51%

Cyboran S., Oszmianski J., Kleszczynska H.

Cellular and Molecular Biology Letters

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2012

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tom 17

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nr 1

The purpose of these studies was to determine the effect of polyphenols contained in extracts from apple, strawberry and blackcurrant on the properties of the erythrocyte membrane, treated as a model of the biological membrane. To this end, the effect of the substances used on hemolysis, osmotic resistance and shape of erythrocytes, and on packing order in the hydrophilic region of the erythrocyte membrane was studied. The investigation was performed with spectrophotometric and fluorimetric methods, and using the optical microscope. The hemolytic studies have shown that the extracts do not induce hemolysis at the concentrations used. The results obtained from the spectrophotometric measurements of osmotic resistance of erythrocytes showed that the polyphenols contained in the extracts cause an increase in the resistance, rendering them less prone to hemolysis in hypotonic solutions of sodium chloride. The fluorimetric studies indicate that the used substances cause a decrease of packing order in the hydrophilic area of membrane lipids. The observations of erythrocyte shapes in a biological optical microscope have shown that, as a result of the substances’ action, the erythrocytes become mostly echinocytes, which means that the polyphenols of the extracts localize in the outer lipid monolayer of the erythrocyte membrane. The results obtained indicate that, in the concentration range used, the plant extracts are incorporated into the hydrophilic area of the membrane, modifying its properties.

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Wystepowanie i rola przeciwutleniaczy w zywnosci

44%

Dietrych-Szostak D.

Biuletyn Informacyjny IUNG

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1999

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nr 11

18-22

9

Wpływ stosowania chitozanu o różnym ciężarze cząsteczkowym na plonowanie, jakość oraz zawartość polifenoli w owocach truskawki odmiany Senga Sengana

44%

Ochmian I., Grajkowski J., Popiel J., Ostrowska M. K.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2009

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tom 536

W doświadczeniu przeprowadzonym w latach 2006-2008 w Katedrze Sadownictwa Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie badano wpływ chitozanów o różnym ciężarze cząsteczkowym (3000, 5000, 12000 i 21000 g∙mol-1) na plon, zdrowotność oraz jakość owoców truskawki odmiany Senga Sengana. Najwięcej owoców zebrano z roślin opryskiwanych roztworem chitozanu o masie cząsteczkowej 12000 g∙mol-1 (465 g). Chitozan 5000 i 12000 g∙mol-1 wpłynął również na wytworzenie przez rośliny owoców większych (masa 100 owoców 591-608 g) i jędrniejszych (199 G∙mm-1). Chitozany zmniejszyły również stopień porażenia owoców przez szarą pleśń. Nie stwierdzono istotnych różnic w zawartości kwasów (0,98-1,12 g kwasu cytrynowego∙100 g-1), witaminy C (21,6-28,5 mg∙100 g-1) oraz azotanów (19-31 mg∙100 g-1). Wszystkie zastosowane chitozany wpłynęły na zwiększenie ilości polifenoli. Najwięcej związków polifenolowych stwierdzono w owocach opryskiwanych chitozanem o ciężarze cząsteczkowym 12000 g∙mol-1 (51 mg∙100 g-1).

Ograniczanie wyników

Intake and profile of plant polyphenols in the diet of the Czech population

Effect of biotic elicitors on polyphenol production in Cayratia trifolia cell suspension cultures analyzed by HPLC

The antioxidative activity of some plant polyphenols

Flavonoid metal complexes used as antitoxic agents against heavy metals contamination

Wlasciwosci antyoksydacyjne nowych koncentratow spozywczych z udzialem preparowanej fasoli kolorowej 'Red Kidney'

Struktura i wlasciwosci antyoksydacyjne polifenoli ziarna kawowego

Interaction between plant polyphenols and the erythrocyte membrane

Wystepowanie i rola przeciwutleniaczy w zywnosci

Wpływ stosowania chitozanu o różnym ciężarze cząsteczkowym na plonowanie, jakość oraz zawartość polifenoli w owocach truskawki odmiany Senga Sengana