The concentration of orotic acid in dry whey ranged between 64 and 146 mg/100 g and appeared dependent on whey type. The orotic acid of modified whey products, prepared commercially by electrodialysis, ultrafiltration, gel filtration, or polyphosphate precipitation was between 7 and 124 mg/100 g, which was less than that of dry whey. It appears that whey processing methods do not concentrate or...

C. F. MILLS I956 3. The organic complexes of copper in these extracts appeared to be stable in the presence of a cation-exchange resin after in vitro incubation at pH values above 2-5. Below pH 2-0 decomposition of complexes was appreciable. I wish to thank Dr J. Duckworth for his interest and encouragement and Dr R. L. M. Synge for advice on electrodialysis techniques. Thanks are due to Miss G...

14 The mechanisms of sorption of four steroidal hormones – estradiol, estrone, progesterone and 15 testosterone – to electrodialysis (ED) membranes were investigated as a function of solution pH 16 and presence of humic acid (HA). Hormone-membrane partition coefficients (log KAEM/CEM) 17 determined through sorption isotherm experiments suggested that hormone sorption was due to 18 hydrogen bond...

THE correction of electrolyte imbalance and the removal of retention products of the blood during renal failure is at present achieved by the use of artificial kidneys which permit the diffusion of solutes through a semi-permeable membrane. Several types of apparatus used successfully for hemodialysis include those described by Kolff and Watschinger (1956) and Alwall, Norviit, and Steins (1948)...

background: reversal of tubal ligation is requested by some women for various reasons. the present study aims to determine the rate of pregnancy after tubal ligation reversal. case: in these case series, we reported fifteen women who requested tuboplasty after tubal ligation. in these cases reversal of tubal ligation was done in 15 women. pregnancy occurred in 4 women (26.6%). two term pregnanc...

The effect of temperature on lithium isotope separation by electrodialysis using La0.57Li0.29TiO3 (LLTO) electrolyte was investigated in the range 298.15–323.15 K. rates mass 6 and 7 isotopes (6Li 7Li) moving through LLTO into pure water were determined inductively coupled spectrometry. An Arrhenius-type dependence observed for rate transfer 6Li 7Li electrodialysis. apparent activation energy t...

Cranberry juice is recognized for its nutraceutical properties. Recently, it was demonstrated that it is possible to enrich a cranberry juice in antioxidants from another cranberry juice by an electrodialysis with filtration membrane (EDFM) process. In order to transpose this technology on an industrial scale for the production of an antioxidant enriched cranberry juice, the present work aimed ...