Gelatin alkaline

Materials. The soy protein isolate used in all experiments was Purina 500 E from Ralston Purina, a type of nonhydrolysed soy isolate which is generally used in the European meat industry. Gelatin (alkaline extracted) was obtained from Extraco, Sweden. 

Benzylatnine. Warm an alcoholic suspension of 118-5 g. of finely-powdered benzyl phthalimide with 25 g. of 100 per cent, hydrazine hydrate (CAUTION corrosive liquid) a white, gelatinous precipitate is produced rapidly. Decompose the latter (when its formation appears complete) by heating with excess of hydrochloric acid on a steam bath. Collect the phthalyl hydrazide which separates by suction filtration, and wash it with a little water. Concentrate the filtrate by distillation to remove alcohol, cool, filter from the small amount of precipitated phthalyl hydrazide, render alkaline with excess of sodium hydroxide solution, and extract the liberated benzylamine with ether. Dry the ethereal solution with potassium hydroxide pellets, remove the solvent (compare Fig. //, 13, 4) on a water bath and finally distil the residue. Collect the benzylamine at 185-187° the 3ueld is 50 g. 

When nickel hydroxide is oxidized at the nickel electrode in alkaline storage batteries the black trivalent gelatinous nickel hydroxide oxide [12026-04-9], Ni(0H)0, is formed. In nickel battery technology, nickel hydroxide oxide is known as the nickel active mass (see Batteries, secondary cells). Nickel hydroxide nitrate [56171-41-6], Ni(0H)N02, and nickel chloride hydroxide [25965-88-2], NiCl(OH), are frequently mentioned as intermediates for the production of nickel powder in aqueous solution. The binding energies for these compounds have been studied (55). 

Bone cleaning is the second stage of en2ymatic extraction. The soHd bone fraction from the first separation is mixed 1 1 with hot water (65—75°C) and treated with alkaline-type proteases. After a reaction time of one hour, the bones are separated and washed with water. The cleaned bones make an excellent raw material for the production of gelatin. 

Sulphur.—The presence of sulphur in organic compounds may be detected by heating the substance with a little metallic sodium or potassium. The alkaline sulphide, when dissolved in water, gives a violet colouration with a solution of sodium nitro-prusside. Heat a fragment of gelatine with a small piece of potassium in a test-tube until the bottom of the tube is red hot, and place it m a small beaker of water as described in the test for nitrogen (p. 2). Filter the liquid and add a few drops of sodium nitroprusside solution. 

The most effective preparative routes to hydrazine are still based on the process introduced by F. Raschig in 1907 this involves the reaction of ammonia with an alkaline solution of sodium hypochlorite in the presence of gelatin or glue. The overall reaction can be written as... 

Ce(OH) + occurs followed by polymerization and finally, as the solution becomes alkaline, by precipitation of the yellow, gelatinous Ce02-xH20. 

CH20N02 1-Nitropropane in an alkaline medium and nitrating the product. It is a poor gelatinizer for blasting sol NC Power. 92% blasting gelatine by BalMort Stability. 5 minutes in 82.2° Heat Test Refs 1) Beil — not found 2)Blatt,OSRD 2014(1944)... 

Several cleaning methods are used to remove the densified gel layer of retained material from the membrane surface. Alkaline solutions followed by hot detergent solutions are indicated for organic polymer colloids and gelatinous materials fouling. Ferrous deposits, t3 pical in water treatments, are usually removed with a citric or hydrochloric wash. [35]. 

Yang, H., Wang, Y., Zhou, P., and Regenstein, J. M. (2008). Effects of alkaline and acid pretreatment on the physical properties and nanostructures of the gelatin from channel catfish skins. Food Hydrocolloids 22, 1541-1550. 

The PMBV/PVA hydrogel containing ES cells was dissociated by the addition of 0.2 M D-fructose solution after 3 days. After dissociation of the PMBV/PVA hydrogel, the recovered ES cells were cultured on gelatin-coated TCPS in the culture medium as usual, and the differentiation characters of recovered ES cells were estimated by alkaline phosphatase (ALP) staining (Fig. 14). 

Gelatine prepared by acid hydrolysis is normally referred to as type A, while gelatine produced by alkaline hydrolysis is referred to as type B. 

Aryloxytitanium halides, 25 83 2-Arylpyridines, 27 111 Aryl phosphate esters, 79 51 Aryl phosphates, 7 7 493 Aryl phosphonates, 79 37 Arylphosphorus compounds, 79 28 Aryls, palladium, 79 652 Aryl-silicon compounds, 22 553, 554 Arylsulfinic acids, 27 248-249 Arylsulfonylated gelatin, 72 444 Aryltin trihalides, 24 810-811 Arylyl amines, 70 396-399 Asahi Chemical Industries EHD processes, 9 676-677 sebacic acid production, 9 679-680 ASAM (alkaline-sulfite-AQ-methanol) process, 27 30... 

Kermack and Wright Biochem. J. XVII. 635,1923) have shown that gelatine at a of 4 T exerts but little protective power on a negative gum benzoin sol, acid gelatine precipitates the colloid in small concentrations whilst alkaline gelatine protects it. Similar observations have been made by Zsigmondy on the effect of casein on gold, but its exact isoelectric point was not established. 

Gelatine is an amphoteric electrolyte (Procter, J.G.S. cv. 313, 1914 Loeb, Jour. Gen. Physiol, i. 483, 551, 1918-1919 I. 39, 237, 363) having an isoelectric point at Ph = 4 7-6 0. On the alkaline side salts or gelatinates, e.g. calcium gelatinate, are formed, whilst on the acid side we obtain soluble gelatine salts, e.g. gelatine chloride, whilst isoelectric gelatine is apparently almost insoluble in water. ... 

Gelatin is produced by partial acid or partial alkaline hydrolysis of animal collagen. It has a wide variety of therapeutic and pharmaceutical uses. It is often used in the manufacture of hard and soft capsule shells, suppositories and tablets, and is sometimes used as a sponge during surgical procedures, as it can absorb many times its own weight of blood. 

Alves, M.M., Antonov, Yu. A., Goii9alves, M.P. (1999). On the incompatibility of alkaline gelatin and locust bean gum in aqueous solution. Food Hydrocolloids, 13, 77-80. 

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