Biotechnology past and present

At the end of this activity, students should be able to:
– define biotechnology and present examples of past and present biotechnological processes
– explain the significance of fermentation as a key biological process in biotechnology
– present the main stages in the production of beer, yoghurt and hard cheeses
– explain the importance of pasteurization in these processes
– present generic names of the microorganisms taking part in these processes
– describe single-celled protein and the substrates used in its production
– describe the structure of a biofermenter and the differences between batch and continuous cultures.