How to Do a Gram Stain? - Biology Lab Techniques

Gram staining is a method of staining used to distinguish and classify bacterial species into two large groups (gram-positive and gram-negative). The name comes from the Danish bacteriologist Hans Christian Gram, who developed the technique.
00:00 - Gram Stain description
00:37 - Heat-fixation
00:53 - Reagents description
01:05 - Crystal violet application
01:30 - Lugol's reagent application
01:52 - Ethanol/Acetone wash
02:19 - Safranin application
02:41 - Drying
02:44 - Microscopic observation

Video produced by Dr Guillaume Erard (https://www.youtube.com/user/SenNoSenProject)
Techniques demonstrated by Ms Ayumu Nishimura
Learn more on http://www.stmaur.ac.jp/

#microbiology #gramstain #ibbiology

Видео How to Do a Gram Stain? - Biology Lab Techniques канала Saint Maur International School