Biotechnology and Microbiology: Video Clips Demonstrating Basic Practical Techniques
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Kaylin Zhang 2/6/2022
0 個讚 150 次播放We have to create a sterile field before we perform experiments on microorganisms, this is to ensure no contamination of apparatus by other microorganisms during the… -
Kaylin Zhang 2/6/2022
0 個讚 90 次播放Streak plate can isolate a single bacterium and the colony formed on the agar plate. This video introduces the flame-sterilisation of inoculating loop, the technique of… -
Kaylin Zhang 2/6/2022
0 個讚 96 次播放This video introduces the tools and techniques for performing spread plate and pour plate. -
Kaylin Zhang 2/6/2022
0 個讚 76 次播放When we need to estimate the amount of bacteria in a sample, we usually perform serial dilutions of the bacterial sample or broth culture sample before culturing. This… -
Kaylin Zhang 2/6/2022
0 個讚 69 次播放This video introduces the method of culturing bacteria, which includes the transfer of one single colony or a tiny amount of broth culture to a new agar plate or a fresh… -
Kaylin Zhang 2/6/2022
0 個讚 92 次播放This video introduces the method of preparing culture media and pouring agar plates, including autoclaving of agar solution, reagent bottles and Petri dishes. Besides… -
Kaylin Zhang 2/6/2022
0 個讚 30 次播放This video introduces the collection of microbial samples from some environmental surfaces using swab sticks, as well as the way of swabbing in order to collect as many… -
Kaylin Zhang 2/6/2022
0 個讚 49 次播放After performing microbiological experiments, it is important to sterilise the used apparatus and unwanted cultures properly before disposal, so that the environment… -
Kaylin Zhang 2/6/2022
0 個讚 79 次播放Gram staining is a common method to stain and to differentiate bacteria into two main groups: Gram positive bacteria (when stained purple) and Gram negative bacteria… -
Kaylin Zhang 2/6/2022
0 個讚 240 次播放Micropipettes are used to draw and transfer a small amount of liquid accurately. There are 3 steps in transferring solution using micropipettes, i.e. setting the volume,… -
Kaylin Zhang 2/6/2022
1 個讚 189 次播放Gel electrophoresis is one of the most common techniques in biotechnology, which can separate DNA samples (e.g. PCR products) according to their molecular sizes under an… -
Kaylin Zhang 2/6/2022
0 個讚 44 次播放This video introduces the methods of mixing the substances in a centrifuge tube (i.e. finger-flicking and wrist-flicking), as well as the use of benchtop centrifuges and…