Casein fibers

Acrylic fibers Acrylonitrile fibers Anidex fibers Casein fibers Elastomeric fibers Fibers, manmade except cellulosic... 

Soy fibers were white to tan in color and had warm soft feel, natural crimp, and high resilience (Hartsuch, 1950). Soy protein fibers had more elongation and 80% of wool s dry strength (Boyer, 1940). These textile efforts, however, were not as successful as those made with casein fibers and failed, largely because soy protein fibers had... 

Early soy protein fibers resembled casein fibers, and later soy protein fibers even resembled rayon. The original intent of producing soy protein fibers was to compete with wool and silk (Moncrieff, 1975). The advantage of SPI over other protein sources was its relatively low price and high protein content. Soy protein fiber had one serious problem that was never solved its low tenacity, particularly when wet. Compared with wool, soy protein fiber was 45% weaker when dry and 75% weaker when wet. Because of its low tenacity, the best application for the fiber was in blends with other fibers such as wool, rayon, nylon, and cotton (Johnson Myers, 1995). 

Merinova Casein fiber Snia Viscosa, Italy... 

Williams, S. and Tonn, W.H. (1941), Qualitative methods of identifying soybean fibers in mixtures of casein fiber, wool, or other textile fiber , Rayon Textile Monthly, XXII, 11, 63-64. 

Noncellulosic organic fibers), for example, acrylic, acrylonitrile, casein fibers and filaments fluorocarbon, nylon fibers and filaments polyester, polyethylene terephthalate, polyolefin, polyvinyl ester, polyvinylidene chloride fibers protein... 

Some of the earliest plastics were based on casein and fiber can be made from extruded casein. In particular, galalith was well known for use in buttons. Lanital, a fabric made from casein fiber products, was very popular in Italy during the 1930s. 

Ihe density of acrylics is around 1.17 g/c.c. at 25°C. For viscose fibers, it is 1.52 g/c.c., which is higher than cellulose acetate but equivalent to cuprammonium. Casein fibers have a density of 1.29 g/c.c., very similar to wool. On the other hand, alginate fibers have a high metal content calcium alginate contains about 10% calcium, and this brings about the high specific density of 1.75 g/c.c. Lyocell also has a comparatively high density of 1.5 g/c.c. 

The tenacity of casein fibers is about 0.8-1.0 g/den, and the elongation at break is about 15 %. When wet, the tenacity is very low this is the main defect of casein fibers, but the elongation at break is correspondingly higher. 

Reclaimed mbber, which is widely used in dry mbber, has Htde use in latex compounding. A dispersion or artificial latex of the red aim must be made by a rather expensive process of milling in dispersing agents, eg, soaps and casein, and water. Some reclaim dispersions are used in latex compounds for such things as spread mbber goods and adhesives and fiber binders to reduce cost. However, for most latex compounds, it is not desirable because of the poor physical properties it imparts and the resultant darkening of the compound. 

Seven diets were constructed from purified natural ingredients obtained from either C3 (beet sugar, rice starch, cottonseed oil, wood cellulose, Australian Cohuna brand casein, soy protein or wheat gluten for protein) or C4 foodwebs (cane sugar, corn starch, com oil, processed corn bran for fiber, Kenya casein for protein) supplemented with appropriate amounts of vitamins and minerals (Ambrose and Norr 1993 Table 3a). The amino acid compositions of wheat gluten and soy protein differ significantly from that of casein (Ambrose and Norr 1993). 

Colorant containing annatto and Ca caseinate as carrier mixed with water to be added directly to cheese milk yielding uniform colored cheese mass Water-dispersible beadlet of p-carotene is mixed with oil to attein composition that remains stable even in presence of polyphosphates and with antioxidant action even in absence of ascorbic acid Blending carotenoid pigment and soybean fiber (wifii tomato juice) as effective ingredient for dispersion stability... 

Furthermore, addition of lysine to soy protein markedly increased the rate of lipid absorption and addition of arginine to casein slowed lipid absorption. The slowed absorption of lipids in animals fed soy protein is similar to that reported for soluble fibers such as pectin and guar gum that act to lower serum cholesterol concentrations in a number of animal species, including humans. 

Regenerated proteins from casein (lanital), peanuts (ardil), soybeans (aralac), and zine (vicara) are used as specialty fibers. Regenerated and modified cellulose products, including acetate, are still widely used today and the production of fibers is similar to that described above for synthetic fiber production. Most regenerated cellulose (rayon) is produced by the viscose process where an aqueous solution of the sodium salt of cellulose xanthate is precipitated in an acid bath. The relatively weak fibers produced by this wet spinning process are stretched to produce strong rayon. 

Till this time, polymer science was largely empirical, instinctive, and intuitive. Several polymers were commercially available prior to World War I celluloid, shellac, Galalith (casein), Bakelite, and cellulose acetate plastics hevea rubber, cotton, wool, and silk rayon fibers Glyptal polyester coatings bitumen or asphalt, and coumarone-indene and petroleum resins. However, as evidenced by the chronological data shown in Table 1.1, there was little... 

Commercial casein is usually manufactured from skim milk by precipitating the casein through acidification or rennet coagulation. Casein exists in milk as a calcium caseinate-calcium phosphate complex. When acid is added, the complex is dissociated, and at pH 4.6, the isoelectric point of casein, maximum precipitation occurs. Relatively little commercial casein is produced in the United States, but imports amounted to well over 150 million lb in 1981 (USDA 1981C). Casein is widely used in food products as a protein supplement. Industrial uses include paper coatings, glues, plastics and artificial fibers. Casein is typed according to the process used to precipitate it from milk, such as hydrochloric acid casein, sulfuric acid casein, lactic acid casein, coprecipitated casein, rennet casein, and low-viscosity casein. Differences... 

The bioavailability of calcium from dairy foods is considered to be excellent (Schaafsma 1983). Evidence from animal studies suggests that the form of calcium in dairy foods may influence the bioavailability of this mineral (Wong and LaCroix 1980). For example, dairy foods that contain colloidal calcium phosphate or calcium caseinate (e.g., as in Cheddar cheese) appear to be somewhat better sources of calcium than foods that contain ionic calcium (e.g., yogurt, buttermilk). However, calcium in milk and other milk products is of greater bioavailability to humans than calcium found in other food sources. According to Renner (1983), calcium utilization from skim milk powder is 85% compared with 22-74% from vegetables. Dietary fiber in plant cell... 

Casein or Caseinogen. A white phosphoprotein occurring as a colloidal suspension in milk. It can be pptd by heating milk with an acid or by other methods. Casein is the principal ingredient of cottage or other cheeses. It is also used in manuf of plastics, paints, paper, synthetic fibers, etc... 

As previously mentioned, flaxseed is a rich source of dietary fiber (28%). Dietary fiber has been widely viewed as a component essential to lowering the risk of colon cancer. The flaxseed protein is similar to soy thus may be beneficial to health. Bhathena et al. (2002) first reported that flaxseed protein was effective in lowering plasma cholesterol and triacylglycerides (TAG) compared to soy and casein protein in male F344 and obese SHR/N-cp rats. The role of protein in disease prevention warrants further investigation. Components, such as PAs and flavonoids, may also contribute to the health benefits of flaxseed. 

These regenerated proteins are obtained from milk (casein), soya beans, corn, and peanuts. More or less complex chemical separation and purification processes are required to isolate them from the parent materials. They may be dissolved in aqueous solutions of caustic, and wet-spun to form fibers, which usually require further chemical... 

Manganese is a nutritionally important trace element for chicks. Dietary energy and protein sources contain very little bioavailable Mn, and these feed ingredients reduce the biopotency of inorganic Mn supplements. This adverse effect is exerted primarily in the intestine as a result of reduced Mn absorption and is mediated by the fiber and/or ash components of the feedstuffs. Gut absorption efficiencies are higher when a phytate-and fiber-free casein-dextrose diet is fed than when a corn-soybean meal diet is fed. Dietary interrelationships exist between Mn and Co and between Mn and Fe. Cobalt increases Mn absorption and may precipitate Mn toxicosis. Excess dietary Mn reduces Fe utilization, but excess Fe does not affect Mn utilization. Eimeria acervulina infection increases Mn absorption. 

Requirement. The Mn requirement of chicks fed a casein-dextrose diet low in fiber, phytate and excess nutrients is 14 ppm (7,21). The National Research Council (39) has set a requirement of 60 ppm in conventional poultry diets. Because of the potential negative effect of conventional feedstuffs (see Bioavailability Section) on Mn bioavailability, the estimate of 60 ppm seems appropriate. 

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