Ultrafiltration: Partitioning of Milk Constituents into Permeate and Retentate

Partitioning of calcium and magnesium (total divalent cations) during membrane filtration of milk

“…It was observed that maximum mineral removal was obtained by UF at pH 6.6, followed by diafiltration at pH 3-3.5. It has been observed that the rejection of calcium, sodium and phosphorus was higher during diafiltration than UF and that diafiltration of acidified milk gave rise to lower rejections of calcium, phosphorus and sodium (Bastian et al, 1991). Calcium and P recovery in UF concentrates (CF = 5) were 84% for calcium and 66% for P. These were reduced by diafiltration and UF of acidified milk.…”

Innovative Uses of Milk Protein Concentrates in Product Development

“…The milk is then concentrated by UF. During the UF step, caseins, whey proteins, micellar salts, and residual fat are concentrated in the retentate, whereas a portion of lactose, soluble salts, and nonprotein nitrogen are removed with the permeate (Green and others ; Babella ; Bastian and others ). For high‐protein MPCs, such as MPC85, UF alone may not be sufficient to achieve the required protein‐to‐solids ratio in the retentate and, therefore, DF is commonly applied (Getler and others ; Singh ).…”

Reduction of Aflatoxin M1 from Artificially Contaminated Milk Using Ultrafiltration and Diafiltration

“…Starting with milks with artificially added AFM, concentraMilk acidification was performed in order to partially disrupt tions up to 2 ug/L, the UF-DF process resulted in reconstituted the protein fraction (Bastian et al, 1991) with which the AFM, is associated (Applebaum et al, 1982). In our study, acidification of milk from pH 6.6 to 6.0 did not influence removal of AFM, (pcO.05) (Fig.…”