Saltar al contenido
Merck

Zinc incorporation capacity of whey protein nanoparticles prepared with desolvation with ethanol.

Food chemistry (2012-08-08)
İbrahim Gülseren, Yuan Fang, Milena Corredig
RESUMEN

Whey protein isolate (WPI) nanoparticles were prepared using ethanol desolvation, and their capacity to incorporate ZnCl(2) was analysed. Desolvation was carried out at pH 9 and the volume of added ethanol was 0-3 times the volume of protein solution. The desolvated solutions were dispersed in acidified water (pH 3) immediately after desolvation. The size of the WPI nanoparticles increased with the volume ratio of ethanol:water used, as well as with the amount of ZnCl(2). The nanoparticles showed high incorporation efficiencies, and remained stable after 30 days of storage at 22 °C. The amount of zinc incorporated in the WPI particle suspensions was within the range of daily zinc requirements for healthy adults.

MATERIALES
Referencia del producto
Marca
Descripción del producto

Sigma-Aldrich
Zinc chloride, reagent grade, ≥98%
Sigma-Aldrich
Zinc chloride solution, 0.5 M in THF
Sigma-Aldrich
Zinc chloride, anhydrous, powder, ≥99.995% trace metals basis
Sigma-Aldrich
Zinc chloride 0.1 M solution
Sigma-Aldrich
Zinc chloride solution, 1.0 M in diethyl ether
Sigma-Aldrich
Zinc chloride, ACS reagent, ≥97%
Sigma-Aldrich
Zinc chloride, BioReagent, for molecular biology, suitable for cell culture, suitable for insect cell culture
Sigma-Aldrich
Zinc chloride, 99.999% trace metals basis
Sigma-Aldrich
Zinc chloride solution, 1.9 M in 2-methyltetrahydrofuran
Sigma-Aldrich
Zinc chloride, AnhydroBeads, amorphous, −10 mesh, 99.99% trace metals basis
Sigma-Aldrich
Zinc chloride, AnhydroBeads, amorphous, −10 mesh, 99.999% trace metals basis