Chapter 6 The growth of microbe and its control (微生物的生长及其控制)
Chapter 6 The growth of microbe and its control (微生物的生长及其控制)
Growth R eproduction: The relationship between individual and colony colony growth=individual growth individual reproduction
Growth： Reproduction： The relationship between individual and colony colony growth=individual growth + individual reproduction
Section a Determination of growth and reproduction (测定生长繁殖的方法) A. Determination of growth quantum(quantity), suitable for all microbes (测定生长量) B. Counting reproduction number, only suitable for unicelled bacteria and yeast, not for the filamentous moulds and actinomyces (计繁殖数)
Section A Determination of growth and reproduction （测定生长繁殖的方法） A. Determination of growth quantum（quantity）,suitable for all microbes. (测定生长量) B. Counting reproduction number, only suitable for unicelled bacteria and yeast, not for the filamentous moulds and actinomyces. (计繁殖数)
A Measuring of growth quantity (测生长量) Direct measuring(直接法) 1. volumetry 2. dry weight weighing Indirect measuring(间接法) 1, physiological index生理指标法 nitrogen content indexes carbon content P DNA RNA ATP DAP chitin etal 2. turbidimetry( nephelometry)比浊法
A. Measuring of growth quantity （测生长量） ◼ Direct measuring (直接法) 1.volumetry 2. dry weight weighing ◼ Indirect measuring(间接法) 1. physiological index 生理指标法 nitrogen content indexes carbon content P, DNA, RNA, ATP, DAP, chitin etal. 2. turbidimetry (nephelometry)比浊法
turbidimetry 90mm
turbidimetry