2 research outputs found
DETERMINATION OF CALCIUM CONTENT IN DIETARY SUPPLEMENTS
Calcium is a macro element that is very important for the human body: its content and circulation in the body is large, it serves as the electrolyte, it has a building role and participates in the process of metabolism. The European Union, the World Health Organization (WHO) and the Ministry of Food and Drug (Food and Drug Administration, FDA) gave the RDA (Recommended Dietary Allowances,) for this macro element. The absorption and bioavailability of the calcium may vary depending on a number of factors, and because all of the foregoing it is consumed by means of different supplements.
The aim of this study was to determine the content of calcium in the various diet products using the volumetric analytical method of analysis. Supplements that were analyzed are divided into two groups. The first group consists supplements in which the calcium is present in the form of different chemical compounds, and the second group consists of supplements of a number of different manufacturers in which the calcium is in the form of calcium carbonate.
Calcium content, obtained by applying the method above, which ranged from 95.11% to 99.80% compared to the theoretical value. Results were analyzed using the t-test, while not producing a statistically significant difference
The frequency of presence of aflatoxin B1 in foodstuffs of vegetable origin
Cereals, nuts and spices are foods that are used in the daily human diet.
According to FAO the average consumption of foods of vegetable origin in
peopleās diet is increasing. Due to inadequate conditions during storage of
foods of vegetable origin, there is possibility of contamination by mold
that produces mycotoxins. Since the intake of these products in organism has
been increased, there is a risk of exposure to mycotoxins and their harmful
effect on the consumersā health. The aim of this study was to determine the
presence of aflatoxin B1 in products of vegetable origin (cereals, nuts and
spices). Aflatoxin B1 was determined by enzyme-imunochemical method (ELISA),
using commercial kit. 38 samples were tested. In 25 analyzed samples, the
content of aflatoxin B1 was higher than 1 Ī¼g/kg (1 Ī¼g/kg is limit of
detection). Out of the total number of tested samples, in 18 samples the
content of aflatoxin B1 was determined higher than the allowed amount for
this product group by the current regulations (2 Ī¼g/kg for cereals, 2 Ī¼g/kg
for nuts and 5 Ī¼g/kg for spices)