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close this bookBioconversion of Organic Residues for Rural Communities (UNU, 1979)
close this folderPossible applications of enzyme technology in rural areas
View the document(introduction...)
View the documentIntroduction
View the documentBiocatalytic processes
View the documentEnzyme hydrolysis of manioc
View the documentWhole cell systems
View the documentCellulose degradation and utilization
View the documentTransfer of enzyme technology to rural communities
View the documentConclusions
View the documentReferences
View the documentDiscussion summary

Whole cell systems

An alternative to the use of purified enzymes is the application of whole cell systems that can be achieved by a variety of means (4). The whole cell represents a "packaged enzyme" or "enzyme system." Most important, by means of the whole cell, it is possible to use sophisticated technology to develop desired cell lines, e.g., through techniques such as genetic engineering, that will carry out highly specific processes under specific conditions. The ability of the cells to grow and reproduce permits the rapid transfer of this technology into the field. The end" user is not concerned with how whole cell systems were developed, but with how they can be used. Desired cell lines carrying out specific functions can be distributed by means of marketing starter cultures, or the technology of cell propagation can be achieved at the local level. An example of one aspect of this approach is the fermentation of cellulose to produce utilizable sugars in a single-step operation.