Comparison of the Level of Boron Concentrations in Black Teas
with Fruit Teas Available on the Polish Market

J 2014

Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market

ZIOLA-FRANKOWSKA, Anetta, Marcin FRANKOWSKI, Karel NOVOTNÝ a Viktor KANICKÝ

Základní údaje

Originální název

Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market

Autoři

ZIOLA-FRANKOWSKA, Anetta (616 Polsko), Marcin FRANKOWSKI (616 Polsko), Karel NOVOTNÝ (203 Česká republika, garant, domácí) a Viktor KANICKÝ (203 Česká republika, domácí)

Vydání

The Scientific World Journal, New York, Hindawi Publishing Corporation, 2014, 2356-6140

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14310/14:00079008

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1155/2014/898425

Klíčová slova anglicky

Boron; Black tea; ICP-OES; daily intake of boron

Štítky

AKR, rivok

Změněno: 8. 2. 2018 10:13, doc. Mgr. Karel Novotný, Ph.D.

Anotace

V originále

The determination of boron by inductively coupled plasma-atomic emission spectrometry has been carried in water-soluble and acid soluble (total content) fractions of 36 samples of traditional black tea and fruit brew. The estimation of the impact of the type of tea on the concentration of boron in water-soluble and acid extracts and potential human health risk from the daily intake of boron was carried out in this study. The levels of boron differed significantly in black and fruit tea types. The mean total content of boron ranged from 8.31 to 18.40 mg/kg in black teas, from 12.85 to 15.13 mg/kg in black tea with fruit flavor, and from 12.09 to 22.77 mg/kg in fruit brews. The degree of extraction of boron in black tea ranged from 8% to 27% and for fruit tea from 17% to 69%. In addition, the values below 25% were of black teas with fruit flavors. The daily intake of B from tea infusions (three cups/day) is still within the average daily intake except for some of the fruit brews which exceed acceptable regulations of the daily intake of total boron by humans. Hence, it may not produce any health risks for human consumption, if other sources of metal contaminated food are not taken at the same time.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

Citovat

ZIOLA-FRANKOWSKA, Anetta, Marcin FRANKOWSKI, Karel NOVOTNÝ a Viktor KANICKÝ. Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market. The Scientific World Journal. New York: Hindawi Publishing Corporation, 2014, roč. 2014, October, s. 1-8. ISSN 2356-6140. Dostupné z: https://dx.doi.org/10.1155/2014/898425.

@article{1225493,
   author = {ZiolaandFrankowska, Anetta and Frankowski, Marcin and Novotný, Karel and Kanický, Viktor},
   article_location = {New York},
   article_number = {October},
   doi = {http://dx.doi.org/10.1155/2014/898425},
   keywords = {Boron; Black tea; ICP-OES; daily intake of boron},
   language = {eng},
   issn = {2356-6140},
   journal = {The Scientific World Journal},
   title = {Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market},
   volume = {2014},
   year = {2014}
}

TY  - JOUR
ID  - 1225493
AU  - Ziola-Frankowska, Anetta - Frankowski, Marcin - Novotný, Karel - Kanický, Viktor
PY  - 2014
TI  - Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market
JF  - The Scientific World Journal
VL  - 2014
IS  - October
SP  - 1-8
EP  - 1-8
PB  - Hindawi Publishing Corporation
SN  - 23566140
KW  - Boron
KW  - Black tea
KW  - ICP-OES
KW  - daily intake of boron
N2  - The determination of boron by inductively coupled plasma-atomic emission spectrometry has been carried in water-soluble and acid soluble (total content) fractions of 36 samples of traditional black tea and fruit brew. The estimation of the impact of the type of tea on the concentration of boron in water-soluble and acid extracts and potential human health risk from the daily intake of boron was carried out in this study. The levels of boron differed significantly in black and fruit tea types. The mean total content of boron ranged from 8.31 to 18.40 mg/kg in black teas, from 12.85 to 15.13 mg/kg in black tea with fruit flavor, and from 12.09 to 22.77 mg/kg in fruit brews. The degree of extraction of boron in black tea ranged from 8% to 27% and for fruit tea from 17% to 69%. In addition, the values below 25% were of black teas with fruit flavors. The daily intake of B from tea infusions (three cups/day) is still within the average daily intake except for some of the fruit brews which exceed acceptable regulations of the daily intake of total boron by humans. Hence, it may not produce any health risks for human consumption, if other sources of metal contaminated food are not taken at the same time.
ER  -

ZIOLA-FRANKOWSKA, Anetta, Marcin FRANKOWSKI, Karel NOVOTNÝ a Viktor KANICKÝ. Comparison of the Level of Boron Concentrations in Black Teas with Fruit Teas Available on the Polish Market. \textit{The Scientific World Journal}. New York: Hindawi Publishing Corporation, 2014, roč.~2014, October, s.~1-8. ISSN~2356-6140. Dostupné z: https://dx.doi.org/10.1155/2014/898425.

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