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Thus by prior sterilization of the medium and the bioreactor and with engineering provision for the exclusion of incoming contaminants only the chosen biocatalyst was present in the reactor.
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Manipulation of the genome of industrially important organisms by sexual recombination and by mutation has long been part of the innovative repertoire of the industrial geneticist.
New recombinant DNA techniques involve breaking living cells gently, the extraction of DNA, its purification and subsequent selective fragmentation by highly specific enzymes
the sorting, analysis, selection and purification of a fragment containing a required gene.
Isolated enzymes have long been a part of many biotechnological possesses and their catalytic properties are being further-utilized with the development of suitable immobilization techniques allowing reuse of the biocatalyst.
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