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Serial dilutions and plate count (English subtitles available)

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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 is to prepare an agar plate with the number of bacterial colonies within the range easy for counting. This video introduces the method and the principle of serial dilution, as well as the skills and steps of plate count.

標籤: serial dilutionsplate countmicro-centrifuge tubesmicropipettecolony-forming units(cfu)dilution factor

資源類別: 短片 Short Videos
學科: 科學教育 Science Education
學習階段: 第四學習階段 (中四至中六) Key Stage 4 (S4 - S6)
作者: 教育局課程發展處
版權聲明: 所有版權由香港特別行政區政府擁有
上載日期: 1/6/2022
出現位置:: 生物工程與微生物學 Biotechnology and Microbiology 短片 Short Videos 科學教育 Science Education

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