|A fermenter is designed to provide a controlled and favorable environment for the growth of cells irrespective of their nature either they are bacterial or fungi or plant or animal cells. Few aspects to be considered while we design a fermenter are about its proper aeration and agitation, low power consuming, controlling of operational and fermenter parameters should be provided, should be aseptically operated, sampling facilities should be provided, design should ensure minimal use of labor for operation, cleaning, harvesting and maintaining the fermenter, it should be economical in its manufacture. Various parts which include are large container, agitators and impellers, motor, baffles, spargers, valves, sensors and probes, coolant/steam jackets etc. Based on the type of the cell culture put in use, we can select any of the following fermenter as per the requirements of the process. Either we can select stirred tank fermenters, air-lift fermenters, plug flow reactors, fluidized bed bioreactors, packed-bed bioreactors, bubble column fermenters accordingly to the requirement.
Review articles are the summary of current state of understanding on a particular research topic. They analyze or discuss research previously published by scientist and academicians rather than reporting novel research results.
Review article comes in the form of systematic reviews and literature reviews and are a form of secondary literature. Systematic reviews determine an objective list of criteria, and find all previously published original research papers that meet the criteria. They then compare the results presented in these papers. Literature reviews, by contrast, provide a summary of what the authors believe are the best and most relevant prior publications.
The concept of "review article" is separate from the concept of peer-reviewed literature. It is possible for a review to be peer-reviewed, and it is possible for a review to be non-peer-reviewed.