Microorganisms development

The ready mixture is a transparent, pale blue fluid. If kept in a dark bottle, it can be used for a long time, but sometimes some microorganisms develop in it and the stain should be filtered before use. 

Some of the traditionally used industrial enzymes (e.g., rennet and papain) are prepared from animal and plant sources. Recent developments in industrial enzyme production have emphasized the microbial enzymes (Frost 1986). Microbial enzymes are very heat stable and have a broader pH optimum. Most of these enzymes are made by submerged cultivation of highly developed strains of microorganisms. Developments in... 

BIOXIDE A process for removing hydrogen sulfide and other sulfides from wastewaters by introducing nitrate ions, which are metabolized by sulfide-oxidizing microorganisms. Developed in the 1980s by Davis Process Products, now a subsidiary of USFilter. 

Sterilization is a probability function. In the pharmaceutical industry, an item is deemed sterile if there is less than 1 chance in 1,000,000 that viable microorganisms are present in the sterilized article or dosage form. Therefore there is a 10 probability of non-sterility. In all sterilization processes, the inactivation of microorganisms develops as a first-order chemicalreaction, i.e., at a rate which is approximately logarithmic. ... 

Microorganisms develop resistance to many antibiotics often through acquisition of a particular "resistance gene." When bacteria carrying a resistance gene are treated with the drug, only resistant bacteria will grow. 

During the prolonged use of sulfonamides it has been found that microorganisms developed resistance as a result of mutations that led to increased ability to inactivate the drugs, and particularly to increased synthesis of 4-aminobenzoic acid, essential for their growth. The clinical uses, indications and contraindications are discussed in two recent chapters173,175. 

Propionibacterium species are used to produce propionic acid via sugar fermentation. As it has wide antimicrobial activity, propionic acid is used in cosmetic formulation as preservatives. Improved production of hydroxy acids from simple sugars can be achieved by using engineered microorganisms developed by recombinant DNA technology. 

Haack, T. K., Lashen, E. S. and Greenley, D. E., 1988. The evaluation of biocide eflicacy against sessile microorganisms. Developments in Industrial Microbiology., 29, 247-253. 

Traditional methods are based on analysis of the inhibiting capabihty of the biocide with respect to microorganism development, e.g. biomass, the radius of colonies during their incubation on a solid agarized surface. Fungicide activity is determined by the following equation ... 

Such regularity is used for comparative estimation of biocides and preliminary determination of their concentrations in a material required for reliable protection from biodegradation. General characteristics of biocides which inhibit microorganism development based on kinetic... 

Lactic acid bacteria are extremely exacting in their development in laboratory media. Connary to all expectations, these microorganisms develop spontaneously in wine. Their development is due... 

Microorganism development (biodiversity, concentration, activity, adaptation) is also determined by specific environmental influencing factors. They includes the presence and absence of oxygen, water content, temperature, pH-value, available nutrients as well as available alternative carbon sources [891]. 

Time of microorganism development, days Thin merino wool Coarse caracnl wool ... 

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