Cellulosic fibres microbial synthesis

Microbial synthesis of ceUulosic fibres affords the opportunity of obtaining products with unique properties suitable for practical application in medicine and the electronics industry. For synthesis of modified bacterial cellulose, the Acetobacter subsp. strains have been applied. The selection of suitable polyaminosaccharide modifiers allows the production of bacterial cellulose characterised by valuable mechanical, electro-acoustic and biological properties. Practical applications of this ceUulosic composite material for manufacture of novel wound-heaUng dressings as well as diaphragms for loudspeakers have been tested. ... 

Cellulosic fibres and fabric processing Microbial synthesis of cellulosic fibres... 

Microbial synthesis of cellulosic fibres affords the opportunities to create products with unique properties suitable for practical application in human and veterinary medicine. Due to its high water absorption capacity, high mechanical strength in the wet state, substantial permeability for liquids and gases, wet cellulose can be used as a temporary artificial skin to treat severe skin burns. 

There are three basic routes to produce polymers from renewable resources feedstock. Direct extraction yields polymer materials such as cellulose, starch, fibres, oils and proteins from which plastic materials can be developed. The second pathway is to convert raw materials first into biomonomers by hydrolysis, and then to polymers by chemical synthesis. A good example is PLA, the most commercialised so far. The third route is to obtain polymeric materials directly by microbial way from carbon sources through biosynthesis (fermentation). A typical example is the production of PHAs by bacteria. 

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