Zawartosc fluoru w herbatach oraz napojach i koncentratach napojow z ekstraktem herbaty

• Autorzy: Jedra M. , Urbanek-Karlowska B. , Gawarska H. , Sawilska-Rautenstrauch D. , Badowski P.
• Języki publikacji: PL

Abstrakty

PL

Oznaczono poziom fluoru w produktach pobranych z rynku: herbatach, napojach ice tea i koncentratach napojów herbacianych instant. Przedstawiono na podstawie piśmiennictwa oddziaływanie na organizm fluoru zawartego w herbacie.

EN

Fluoride contents of 23 commercial brands of black and green tea were determined using Potentiometrie method with ion selective electrode. To prepare tea infusions, a sample of tea (bag - 1,5-2,0 g) was extracted with 200 ml boiling water for 5 min. Fluoride contents ranged from 0,147 to 0,574 mg/cup of tea infusions (mean 0,373 mg). Moreover, fluoride level in 7 samples iced tea ready-to-drink beverages as well as in 11 samples instant tea concentrates were measured. The beverages were prepared from concentrate according to the recipe suggested by the producers on the labels - 4 teaspoon (20 g) in 200 ml water. Fluoride contents of ice tea beverages ranged from 0,016 to 0,242 mg/cup (mean 0,106) while beverages prepared from concentrate contained considerably lower fluoride amount ranging from 0,002 to 0,059 mg/cup (mean 0,011). In conclusion, black and green teas and ice tea ready-to-drink beverages, sold in market may constitute an important source of fluoride in diet.

Słowa kluczowe

PL

napoje instant; napoj herbaciany; herbata; fluor; zywnosc; konferencje; dieta; oznaczanie; Gdansk konferencja; zawartosc fluoru; wartosc zdrowotna; zywienie czlowieka

EN

tea beverage; tea; fluorine; food; conference; diet; determination; Gdansk conference; fluorine content; healthy value; human nutrition

• Wydawca: -
• Czasopismo: Bromatologia i Chemia Toksykologiczna
• Rocznik: 2003
• Tom: 36
• Numer: Supl.
• Opis fizyczny: s.41-45,tab.,bibliogr.

Twórcy

autor

Jedra M.

• Instytut Zywnosci i Zywienia, ul.Powsinska 61-63, 02-903 Warszawa

autor

Urbanek-Karlowska B.

autor

Gawarska H.

autor

Sawilska-Rautenstrauch D.

autor

Badowski P.