Ammonium hydroxide casein

In addition, to release lipids from source material, such as those in starch, fish meal, or milk, it might be necessary to treat the sample with an acid prior to lipid extraction (see Basic Protocol 4). In the case of milk, addition of ammonium hydroxide is necessary to dissolve casein prior to lipid extraction, which will release the lipids from its surrounding matrix (e.g., from the film surrounding the fat globules in milk). Furthermore, in certain cases, it is necessary to predry the sample in order to allow efficient and complete extraction of lipids. Particle size reduction is another factor that may improve lipid extraction efficacy. 

Ammonium caseinate n. Casein solubilized by ammonium hydroxide generally employing a hot water presoak. 

Fig. 59. Finger print of a casein hydrolysate on cellulose MN 300 plate size 20 X 20cm layer thickness 0.25 mm. 1 dimension electrophoresis with buffer of 25 ml formic acid and 78 ml acetic acid per litre 400 V and 75 min run. 2 dimension TLC with chloroform-methanol-17.5% ammonium hydroxide (41+41+18). 1 leucine + isoleucine 2 phenylalanine 3 valine 4 methionine 5 proline 6 tyrosine 7 hydroxy-proline 3 alanine 9 serine + threonine id glycine ii histidine i2 arginine + lysine 13 glutamic acid 14 aspartic acid 8 Thin-Layer Chromatography, 2nd Edition...

Ice water label paste is a very specialized water-based casein adhesive which is used primarily to adhere paper labels to beer bottles. The labels must remain attached if the bottles are chilled in ice or otherwise subjected to wet conditions, but they must wash off reusable bottles easily with hot water. Casein is dispersed with urea at an approximate 50 50 ratio in the presence of ammonium hydroxide as an additional dispersant. The high percent casein solids in this type formulation is possible because of the urea, which acts as a viscosity reducer. The urea, sometimes along with ammonium thiocyanate, functions also as a gel depressant. Zinc oxide and zinc acetate are used to crosslink and provide water resistance. A defoamer and a preservative are always included. Starch is one of several agents incorporated to shorten the thread of the adhesive to improve its performance on high speed labelling machines. 

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