Big Chemical Encyclopedia

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

Articles Figures Tables About

Enzymes mineralization

The claimed body-building effect of the so-called anabolic compounds reflects their ability to promote muscular development, even beyond physiological limits, and this can bring with it cardiovascular complications. Surreptitious misuse by athletes remains a recurrent problem in professional sport (73) apart from the cardiovascular risks, one observes numerous physiological changes, including effects on plasma levels of enzymes, minerals and vitamins and reduced concentrations of HDL cholesterol (74). [Pg.142]

Finally, new methods of analysis have recently been developed that may allow characterization of single atoms on surfaces such as atomic force microscopy.9 In certain cases, in situ experiments can be done such as the study of electrodes, enzymes, minerals and biomolecules. It has even been shown that one atom from a tip can be selectively placed on a desired surface.10 Such processes may one day be used to prepare catalysts that may enhance selectivity. Other methods that show promise as regards detection of surface catalytic intermediates are temperature programmed desorption techniques.11 Selective poisoning of some surface intermediates with monitoring via temperature programming methods may also allow the preparation of more selective catalysts. [Pg.9]

PCR PURIFICATION It is important to remove excess primers, nucleotides, enzymes, mineral oil, salts, and other impurities from DNA samples prior to executing other downstream processes. This DNA purification protocol is based on the QIAGEN QIAquick PCR Purification Kit (www.qiagen.com) however, several other DNA purification kits are available. We do not endorse this product but offer the outlined protocol as a starting place for the researcher. [Pg.102]

Plaque quantity Plaque quality Enzymes Minerals... [Pg.376]

Aloe vera contains 75 potentially active constituents vitamins, enzymes, minerals, sugars, lignin, saponins, salicylic acids and amino acids (Suijushe et al., 2008). [Pg.213]

Cortisol-Cortisone Conversion. Under normal conditions, this equilibrium slightly favors the oxidized compound. Similarly, the conversion of corticosterone to 11-deoxycorticosterone is also mediated by the liP-hydroxysteroid dehydrogenase enzyme system and requites NAD(P) /NAD(P)H. This conversion is especially important both in the protection of the human fetus from excessive glucocorticoid exposure, and in the protection of distal nephron mineral ocorticoid receptors from glucocorticoid exposure (14). The impairment of this conversion is thought to result in hypertension associated with renal insufficiency (15). [Pg.97]

Phytic acid (9), although restricted to a more narrow range of food products, mainly grains, complexes a broader spectmm of minerals than does oxahc acid. Decreased availabiUty of P is probably the most widely recognized result of excessive iatakes of phytic acid, yet Ca, Cu, Zn, Fe, and Mn are also complexed and rendered unavailable by this compound (47—49). Phytic acid has also been reported to reduce the activity of a-amylase and to decrease the activity of both proteolytic and Hpolytic enzymes (50). [Pg.478]

Because of its position in the Periodic Table, molybdenum has sometimes been linked to chromium (see Chromiumand chromium alloys) or to other heavy metals. However, unlike those elements, molybdenum and its compounds have relatively low toxicity, as shown in Table 3. On the other hand, molybdenum has been identified as a micronutrient essential to plant life (11,12) (see Fertilizers), and plays a principal biochemical role in animal health as a constituent of several important enzyme systems (see Mineral nutrients). [Pg.463]

Molybdenum, recognized as an essential trace element for plants, animals, and most bacteria, is present in a variety of metaHo enzymes (44—46). Indeed, the absence of Mo, and in particular its co-factor, in humans leads to severe debility or early death (47,48). Molybdenum in the diet has been impHcated as having a role in lowering the incidence of dental caries and in the prevention of certain cancers (49,50). To aid the growth of plants. Mo has been used as a fertilizer and as a coating for legume seeds (51,52) (see FERTILIZERS Mineral NUTRIENTS). [Pg.475]

Thus the requirement for the use of man-made drugs and dietary additives as veterinary medicines for the treatment of farmed animals is considerable and worth about 100 million pounds sterling annually in the UK ( 104 million in 1994j io jjjg investment in dietary additives such as vitamins, trace minerals, coccidiostats, pigmenters, enzymes and other probiotics to feed compounders in the UK is worth about 110 million, assuming an addition rate of 2.5 kg per tonne and a cost of approximately 3% of the total concentrate dietary cost (calculated from MAFF data, 1995). ° These data can be increased by a factor of about 10 when the compound feed produced within Europe is considered. [Pg.86]

A wide variety of animal species are subjected to the administration of drugs during their lifetime.The various animal species can encounter drugs and other dietary additives by different routes and this is dependent on the environment in which they are kept. Intensively reared animals tend to have considerable consistency in the components of their diets and thus are much less likely to encounter the range of naturally produced compounds that extensively produced animals encounter. The desire for less expensive dietary constituents and increased efficiency of use has induced feed manufacturers and producers to add enzyme supplements to diets of most farmed animals to reduce the negative effects of indigestible dietary carbohydrates, refactory proteins and unavailable minerals such as phosphorus. This use of dietary additives to improve nutrient utilization and environmental consequences of feeding animals intensively has been the subject of intense research activity in the last five years. " The... [Pg.90]

Chemicals are ubiquitous as air, carbohydrates, enzymes, lipids, minerals, proteins, vitamins, water, and wood. Naturally occurring chemicals are supplemented by man-made substances. There are about 70000 chemicals in use with another 500-1000 added each year. Their properties have been harnessed to enhance the quality of life, e.g. cosmetics, detergents, energy fuels, explosives, fertilizers, foods and drinks, glass, metals, paints, paper, pesticides, pharmaceuticals, plastics, rubber, solvents, textiles thus chemicals are found in virtually all workplaces. Besides the benefits, chemicals also pose dangers to man and the environment. For example ... [Pg.1]

Spoerke ED, Anthony SG, Stupp SI (2009) Enzyme directed templating of artificial bone mineral. Adv Mater 21 425-430... [Pg.167]

Eaton DC (1985) Mineralization of polychlorinated biphenyls by Phanerochaete chrysosporium, a lignolytic fungus. Enzyme Microbiol Technol 7 194-196. [Pg.81]


See other pages where Enzymes mineralization is mentioned: [Pg.339]    [Pg.363]    [Pg.5]    [Pg.26]    [Pg.248]    [Pg.552]    [Pg.94]    [Pg.299]    [Pg.13]    [Pg.339]    [Pg.363]    [Pg.5]    [Pg.26]    [Pg.248]    [Pg.552]    [Pg.94]    [Pg.299]    [Pg.13]    [Pg.111]    [Pg.31]    [Pg.32]    [Pg.33]    [Pg.33]    [Pg.524]    [Pg.373]    [Pg.384]    [Pg.469]    [Pg.393]    [Pg.450]    [Pg.91]    [Pg.107]    [Pg.704]    [Pg.262]    [Pg.277]    [Pg.120]    [Pg.115]    [Pg.16]    [Pg.54]    [Pg.440]    [Pg.477]    [Pg.548]    [Pg.698]    [Pg.274]    [Pg.348]   
See also in sourсe #XX -- [ Pg.268 , Pg.269 , Pg.271 , Pg.274 , Pg.276 , Pg.278 ]




SEARCH



Minerals and enzymes

Minerals enzyme reactions

© 2024 chempedia.info