Microbiological Deterioration

Poultry, susceptible to microbiological deterioration, is an excellent substrate for Salmonella. Therefore, the temperature is reduced as rapidly as possible after slaughter. Packagiag at factory level is in soft film, ie, low density polyethylene or plastici2ed PVC, which retards water-vapor loss and permits oxygen entry. 

BS 6085-2, Methods for determination of the resistance of textiles to microbiological deterioration, 1992. 

Performance. Figure 2 shows a rejection-flux pattern (r-f pattern). Compaction, as it is well known, results in the flux decline with salt rejection Increase. Contrary to this, other types of membrane deterioration give the flux increase with salt rejection decline. In case of scratching, vibration, or microbiological deterioration, small cracks or pinholes develop over membrane surfaces. If the flux Increase is solely attributed to the crack or pin-holes, and these sites do not reject salt at all, the relation between salt rejection and flux can be calculated. 

Potato protein dry matter content should be —90% in order to produce a balance between microbiological deterioration, energy consumption and fine powder content. The protein content of the dry matter is —85% and the bulk density is —550kg/m3. Potato protein contains a high amount of protein, as compared to fishmeal, milk powder and soy protein. Also, the amount of important amino acids, such as lysine, methionine and cystine, is relatively high. Potato protein is mainly sold as cattle feed. 

Gu, J. D. (2003). Microbiological deterioration and degradation of synthetic polymeric materials recent research advances. International Biodeterioration and Biodegradation, 52, 69-91. 

Abrams, Edward, Microbiological Deterioration of Organic Materials Its Prevention... 

Products used for the preservation of fibrous or polymerised materials, sueh as leather, rubber or paper or textile produets, and rubber by the eontrol of microbiological deterioration. 

When appropriate, written procedures should be established and followed to minimize objectionable microbiological contamination in APIs and intermediates that (1) are of biologic origin (2) are sensitive to microbiological deterioration or (3) have established microbiological specifications. 

Preservatives (antimicrobials/biocides) Controlling and stopping microbiological deterioration ... 

Jute can be made to react with acrylonitrile in the presence of alkali under conditions that do not reduce the tensile strength of the fibers to any important extent. The properties of cyanoethylated cotton have been known for some time [45], and this particular chemical modification is claimed to provide increased stability against degradation by acids and by heat. Cotton containing more than 3% nitrogen is also said to show high resistance to microbiological deterioration [46]. 

Kempson, A. K. (1976). The microbiological deterioration of paints. Australian OCCA Proceedings and News, 5-14. 

Resin is applied usually to the long chain of repeated units in the polymeric materials. This may be linear, branched, or cross-linked. Other constituents that contribute along with plastics as additives are plasticizers which improve the flexibility of the plastic, colored pigments, antioxidants, UV stabilizers, lubricants, mold-release agents, and sometimes biocides to inhibit microbiological deterioration. Additives influence the physical properties and resistance to deterioration in plastics. 

The most important representatives of this group of oils are coconut, palm seed and babassu oils. The acceptable shelf life stability of these oils is reflected in their fatty acid compositions (Table 14.8). Since linoleic acid is present in negligible amounts, autoxidative changes in these oils do not occur. However, when these oils are used in preparations containing water, microbiological deterioration may occur this involves release of free Cg-C fatty acids and their partial degra-... 

Observations on microbiological deterioration of cotton fiber during the period of boll opening in 1950. Plant Pis. Reptr., 34, 165-174. 

Properly formulated plastics with VINYZENE protection will resist microbiological deterioration after long-term exposure to heat and severe weathering conditions. 

VINYZENE BP-5-2 MEK and BP-5-2 MS are antimicrobial solvent solutions of 10,10 -oxybisphenoxarsine (OBPA). Tliey are recommended for PVC, polyurethane and other polymeric compounds requiring protection against microbiological deterioration. 

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