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DEVELOPMENT AND MINERAL CHARACTERIZATION OF MILK CHOCOLATE FORTIFIED WITH CHICKEN EGGSHELL POWDER
Abstract
Taking into account the fact that by fortifying chocolate, more nutritious and healthier chocolates are obtained, in this work we set out to obtain an assortment of milk chocolate with the addition of chicken eggshell powder and to evaluate its mineral intake. Practically, the purpose of this experiment is the superior valorization of eggshell waste from household activities as a mineral fortification for milk chocolate. Four types of milk chocolates were prepared with the addition of 0, 1, 2 and 4% chicken eggshell powder, which were analyzed from the point of view of Ca, Mg, Fe, Mn, Zn and Cu. The results obtained from the analysis of chocolates show an increase in the mineral concentration of milk chocolate with the increasing addition of eggshell powder: 265 - 1.724 mg/100g Ca; 124-140 mg/100g Mg; 2.947 - 3.231 mg/100g Fe; 0.569 - 0.612 mg/100g Mn; 2.407 - 2.460 mg/100g Zn and 0.940 - 0.988 mg/100g Cu. Under the conditions of the present experiment, a consumption of 50 g of chocolate with 1 - 4% eggshell powder covers a good part of the recommended daily mineral requirement: 31.47 - 86.20% Ca - for women and men; 15.21 - 22.66% Mg for women and men; 8.19 - 20.19% Fe - for men and women; 12.46 - 17.08% Mn - for women and men; 10.97 - 15.38% Zn - for men and women respectively; 52.50 - 54.89% Cu - for women and men. A possible increase in the mass of eggshell used for the mineral fortification of chocolate is possible, but this may decrease the sensory quality of the chocolate, especially in terms of texture and taste. The obtained results confirm the fact that milk chocolate fortified with 4% eggshell has a higher mineral intake than nonfortified chocolate, especially from the point of view of Ca and Mg content.
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