Micro-organisms elimination

For jet fuels, the elimination of free water using filters and coalescers by purging during storage, and the limit of 5 ppm dissolved water are sufficient to avoid incidents potentially attributable to water contamination formation of micro-crystals of ice at low temperature, increased risk of corrosion, growth of micro-organisms. 

Contamination sources for micro-organisms can now be extended to the water being reused, air borne species and also man bringing in contamination for external sources. All of these sources are difficult to eliminate due to the nature of the process conditions. Hence... 

Steam sterilization is a highly effective and reliable method to kill microbiological populations by using saturated steam (Table 2.4.2). Micro-organisms are eliminated by the denaturation of cell albumin (EN 566-1 2001)... 

The heat treatment of cream plays a decisive role in the butter-manufacturing process and the eventual quality of the butter. It is important that milk and cream be handled in the gentlest possible way to avoid mechanical damage to the fat, a serious problem in continuous manufacture (Fritz process) of butter (80). Cream is pasteurized or heat treated for the following reasons to destroy pathogenic micro-organisms and reduce the number of bacteria, to deactivate enzymes, to liquify the fat for subsequent control of crystalhzation, and to provide partial elimination of undesirable volatile flavors. 

Alkalis or micro-organisms can cause the individual fibrils to become detached at the surface and project in little tufts. These can be recognized by microscopic examination. The tufts appear as a lighter shade after dyeing because they reflect the light differently, but once they have made their appearance nothing can eliminate them. Silk which is affected in this way is said to be lousy . A test for lousiness which is recommended by the Cotton,... 

The isolation and identification procedures theoretically enable the detection of one or a few colony-forming units in the total test sample if the Interference of saprophytic micro-organisms can be eliminated For some pathogenic bacteria the variable sensitivity of the traditional Isolation methods can be partly overcome by the use of selective media ... 

The ocular surface is the domain of the mucosa-bonded immune system [24]. This system plays an important role in combating infections by killing micro-organisms. It consists of the lachrymal gland, conjunctiva and related structures. Besides immunoglobulins, enzymes and bactericidal components are present IgA, lysozyme, lactoferrin, lipocalins, cathelicidine and probably beta-defensins [25]. Lipocalin is considered the most important component in eliminating toxic (phospho)lipids and fatty acids from the ocular surface [26]. Elimination is necessary, otherwise only partial hydration of the corneal epithelium will occur, which could result in ulceration [27]. 

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