Decay microbiological

Extractives and Ash. The amount of extractives in wood varies from 5 to 20% by weight and includes a wide variety of organic chemicals (11). Many of these function as intermediates in tree metaboUsm as energy reserves or participate in the tree s defense mechanism against microbiological attack. The extractives contribute to wood properties such as color, odor, and decay resistance. 

Fresh wastewater has a characteristic musty scent. The wastewater is named fresh when disolved oxygen is present. If microbiological decay is occuring in the absence of... 

Zabel, R.A. and Morrell, J.J. (1992). Wood Microbiology Decay and its Prevention. Academic Press, San Diego, USA. 

More than 130 different types of alkanes have been identified in the atmosphere [27] and they comprise a major fraction of the organic pollutants found in urban atmospheres (see Table 3). They are released in large amounts in activities connected with the extraction, refining, distribution, and combustion of fossil fuels. Alkanes are also released during the combustion of organic matter and by microbiological processes associated with the decay... 

Wadekar, R. V., North, M. J. Watkinson, S. C. (1995). Proteolytic enzymes in two wood decaying basidiomycete fungi, Serpula lacrymans and Coriolus versicolor. Microbiology, 141, 1575-83. 

Buchan, A., Newell, S. Y., Butler, M. et al. (2003). Dynamics of bacterial and fungal communities on decaying saltmarsh grass. Applied and Environmental Microbiology, 69, 6676-87. 

It is essential that the microbiological particle passage test is performed as part of the development of new sterile formulations. Because of its very specialized nature, the test is normally performed only by the filter manufacturers, who then provide limits for secondary physical tests (e.g., bubble point, pressure decay, forward flow, etc.), which can be applied to verify the pore size rating and integrity of the membrane filters. 

Zahel RA and Morrell JJ (1992) Wood microbiology decay and its prevention. Academic Press, Inc., San Diego, California... 

If there is one thing the American people believe in, it s the power of toothpaste to prevent tooth decay and gum disease. But most people don t realize that this imputed power of prevention defies all the known facts of microbiology, to say nothing of common sense. 

Protection of wood against microbiological decay can be accomplished by ir jregnation with trailkyltin polymers. 

Resistance to Microbiological Attack. Under normal ambient temperatures, a wet raw skin will decay rapidly due, primarily, to the action of bacterial proteolytic enzymes. Leather, on the other hand, resists such microbiological attack even if it remains wet. This fundamental difference has been used to define tannage. 

Co-contaminants Dispersion Dilution Environment Chemical composition Sorbents Microorganisms Nutrient offer Microbiological decay/metabolism Gas transfer in unsaturated zone... 

In groundwater MTBE is subject to no or minor microbiological decay, thus leading to the formation of the aforementioned contamination plumes... 

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