JPS56109596A - Measurement of cell concentration - Google Patents

Measurement of cell concentration

Info

Publication number
JPS56109596A
JPS56109596A JP1005380A JP1005380A JPS56109596A JP S56109596 A JPS56109596 A JP S56109596A JP 1005380 A JP1005380 A JP 1005380A JP 1005380 A JP1005380 A JP 1005380A JP S56109596 A JPS56109596 A JP S56109596A
Authority
JP
Japan
Prior art keywords
cells
tank
cultivation
concentration
microorganism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1005380A
Other languages
Japanese (ja)
Inventor
Norio Shimizu
Tetsuo Yamaguchi
Setsuo Saito
Masao Ueno
Yoji Otahara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1005380A priority Critical patent/JPS56109596A/en
Publication of JPS56109596A publication Critical patent/JPS56109596A/en
Pending legal-status Critical Current

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Landscapes

  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

PURPOSE: In the cultivation of a microorganism, the amount of nitrogen consumed by the microorganism is determined and the result and the nitrogen content of the cells that has been previously determined are used to calculate the amount of the cells in the culture medium, whereby the accurate measurement of the cell concentration is given promptly even when the cells are cultured in high concentration.
CONSTITUTION: Even when the microorganism cells cultured in tank 1 reach a high concentration level, analyzer 11 determines the nitrogen content on the supernatant collected from sample tube 3 and arithmetic unit 12 calculates the amount of the cells in the tank on the basis of the data on the nitrogen content. Corresponding to the signals from the arithmetic units 12 and 14, controller 13 controls the rotation of pump 7 to keep the addition of the substrate from substrate tank 9 to the cultivation tank 1 to an appropriate level. Thus, effective cultivation of high-concentration cells can be done. Low-concentration cultivation also is effected in the same way.
COPYRIGHT: (C)1981,JPO&Japio
JP1005380A 1980-02-01 1980-02-01 Measurement of cell concentration Pending JPS56109596A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1005380A JPS56109596A (en) 1980-02-01 1980-02-01 Measurement of cell concentration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1005380A JPS56109596A (en) 1980-02-01 1980-02-01 Measurement of cell concentration

Publications (1)

Publication Number Publication Date
JPS56109596A true JPS56109596A (en) 1981-08-31

Family

ID=11739642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1005380A Pending JPS56109596A (en) 1980-02-01 1980-02-01 Measurement of cell concentration

Country Status (1)

Country Link
JP (1) JPS56109596A (en)

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