Dear Adarsh,

Researchers have encapsulated zinc citrate in nanoparticles prepared from milk whey proteins with pH cycling. Nanoparticles were used for the encapsulation and sustained release of zinc citrate with three ratios (7, 14 and 28 mM) of zinc citrate per gram WPI. Encapsulation efficiency ranged between 99.79 and 96.31%.

------------ > "The amount of zinc loaded whey protein (7.5 mg zinc in 1 g WPI) was measured by atomic absorption flame spectrophotometer (AnalytikJena, Germany) computed with Aspect CS 2.1.1.0 software. Zinc was measured at its primary wavelength 357.9 nm, the flame was acetylene-air mixture, the lamp used was xenon short arc lamp and CCD detector was used for complete background correction. Automatic optimization of the apparatus was used to obtain the best condition for measurement."

Preparation and Characterization of Sustained Released Zinc Citrate Encapsulated in Whey Protein Nanoparticles

Tarek Nour Soliman and Mona Abd El Fattah Hassan

Article Preparation and Characterization of Sustained Released Zinc ...