Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Protein content major

This, then, was the scene in which SCP projects were planned in Europe. The need for alternative foods and feedstuffs was clear and, in the UK and elsewhere, oil and gas seemed a plentiful and cheap resource from which to produce them. North Sea gas fields were being exploited and research had shown that natural gas or its derivatives could be used to produce SCP feed of superior protein content to conventional feedstuffs. The economics of such processes seemed very promising. In 1971 the European prices for fish meal and soya meal were 200 and 100 per ton respectively. In 1973 oil price rises and a failure in the Peruvian fish meal supply pushed these prices up to 550 and 300 respectively. With such prices for the major feedstuffs it was considered that SCP feeds could be produced competitively. [Pg.88]

Collagen is the major protein component of coimective tissue and constitutes approximately 25% of the total protein content in humans. There are more than 19... [Pg.23]

Kersten, G. F. A., Van de Put, A., Teerlink, T., Beuvery, E. C., and Crommelin, D. J. A. (1988a). Immunogenicity of liposomes and iscoms containing the major outer membrane protein of Neisseria gonorrhoeae -Influence of protein content and liposomal bilayer composition. Inf. Immun., 56. 1661-1664. [Pg.324]

The major biopolymers, in the cytoplasm particularly, are the same in the earliest cells as they are today DNA (RNA), proteins, polysaccharides and lipids. The cell protein content is discussed under the heading proteome. [Pg.196]

Proteins are the major components by bulk in many biological samples and hence the weighing of a dried sample should give an estimate of the amount of protein present. Similarly, solutions that contain protein show values for specific gravity and surface tension which are in some way related to protein content. Measurements of the turbid ity resulting from the precipitation of protein and the absorption of radiation at specif ic wavelengths have all been used quantitatively... [Pg.2]

Animal feeds are a major market, especially for monogastric animals. This is because their nutritional requirements are high and the lysine content of traditional feed such as soy or maize is low. A supplementation of feeds with individual essential amino acids is necessary because a high protein contents lead to excessive manure production, especially by pigs. [Pg.143]

Potatoes are an excellent source of carbohydrates and contain significant amounts ofphosphorus, potassium, calcium, and vitamins, especially vitamin C. Potato protein content, at over 10%, is relatively close to that of wheat flour (11%) also, thanks to their lysine, methionine, cystine and cysteine contents, potatoes are a valuable supplement to cereal proteins. For instance, potatoes provide a significant source of proteins (10-15% of total requirements), a major source of vitamin C, an important source of energy, and also minerals like iron and other vitamins such as thiamin, nicotinic acid, riboflavin, and pro-vitamin A (p carotene) (Salunkhe and Kadam, 1991). [Pg.165]

Whey protein concentrates (WPC) are produced by a variety of processing treatments to remove both lactose and minerals (20) as indicated in Figure 5. Even though it would be highly desireable to remove most of the lactose and minerals in these processes, it is not practical from an economic standpoint and thus most of these products only range in protein content from 35 to 50 %.The major objective of most of these processes is to produce a WPC with minimal protein denaturation in order to obtain a product with maximum protein solubility and functionality. However, from a practical consideration this objective is not readily obtainable, and thus most WPC products commercially available exhibit variable whey protein denaturation and functionality (20). [Pg.208]

Unlike other lipoproteins, HDL particles are assembled outside of cells from lipids and proteins, some of which may be donated from chylomicrons (see Fig. 21-1) or other lipoprotein particles. HDL has a higher protein content than other lipoproteins and is more heterogeneous. The major HDL protein is apolipoprotein A-I, but many HDL particles also contain A-jj 205,208-210 ancj apolipoproteins A-IV, D, and E may also be present. A low plasma level of HDL cholesterol is associated with a high risk of atherosclerosis.205 207... [Pg.1248]

A complete understanding of the biochemical functions of DNA requires a clear picture of its structural and physical characteristics. DNA has significant absorption in the UV range because of the presence of the aromatic bases adenine, guanine, cytosine, and thymine. This provides a useful probe into DNA structure because structural changes such as helix unwinding affect the extent of absorption. In addition, absorption measurements are used as an indication of DNA purity. The major absorption band for purified DNA peaks at about 260 nm. Protein material, the primary contaminant in DNA, has a peak absorption at 280 nm. The ratio A26(j/A2m is often used as a relative measure of the nucleic acid/protein content of a DNA sample. The typical A260/Am for isolated DNA is about 1.8. A smaller ratio indicates increased contamination by protein. [Pg.404]

Albumin- and globulin-type proteins are the major proteins in flaxseed. According to Madhusudhan and Singh (1983), flaxseed albumin comprised 20% of total meal protein. Marcone et al. (1998) reported that the globulin fraction makes up 73.4% of total protein, and the albumin constitutes about 26.6%> of total protein. In contrast, Youle and Huang (1981) reported that 2S proteins accounted for 42%> of the total seed proteins. Sammour (1999) also reported albumin accounted for 40.2%> of the total protein content. [Pg.8]


See other pages where Protein content major is mentioned: [Pg.442]    [Pg.98]    [Pg.176]    [Pg.297]    [Pg.57]    [Pg.58]    [Pg.39]    [Pg.52]    [Pg.131]    [Pg.224]    [Pg.237]    [Pg.249]    [Pg.257]    [Pg.421]    [Pg.27]    [Pg.22]    [Pg.190]    [Pg.248]    [Pg.245]    [Pg.100]    [Pg.105]    [Pg.221]    [Pg.278]    [Pg.62]    [Pg.198]    [Pg.80]    [Pg.5]    [Pg.404]    [Pg.127]    [Pg.150]    [Pg.9]    [Pg.227]    [Pg.30]    [Pg.133]    [Pg.6]    [Pg.180]    [Pg.1142]    [Pg.1142]    [Pg.1151]    [Pg.133]   
See also in sourсe #XX -- [ Pg.102 ]




SEARCH



Proteins protein content

© 2024 chempedia.info