21: Using Microorganisms Flashcards
What is fermentation?
Fermentation is using the respiration of microorganisms to produce useful products
What are fermenters
Fermenters are vessels used to grow microorganisms
What is biotechnology?
Biotechnology is the use of microorganisms to make useful products
What is genetic engineering?
Genetic engineering are techniques used to transfer genes from the cells of a donor organism to those of a recipient
What is lactic acid bacteria?
Lactic acid bacteria is a type of bacteria that produces lactic acid. Used in fermenting milk to make yoghurt and cheese
What is saccharomyces cerevisiai?
(Sa-kuh-row-mai-seez seh-ruh-vi-si-ai)
It is a species of yeast used for making bread and alcoholic drinks
What are Lactobacillus and Streptococcus?
These are 2 species of bacteria that are used as a starter culture in yoghurt-making
What is Aseptic Precautions?
These are methods used to prevent contamination by unwanted microorganisms such as filtering the air and sterilising the fermenter with steam
