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JPS56113298A - Determination of freshness of food, and electrode - Google Patents

Determination of freshness of food, and electrode

Info

Publication number
JPS56113298A
JPS56113298A JP1525880A JP1525880A JPS56113298A JP S56113298 A JPS56113298 A JP S56113298A JP 1525880 A JP1525880 A JP 1525880A JP 1525880 A JP1525880 A JP 1525880A JP S56113298 A JPS56113298 A JP S56113298A
Authority
JP
Japan
Prior art keywords
food
freshness
enzyme
imp
xanthine oxidase
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.)
Granted
Application number
JP1525880A
Other languages
Japanese (ja)
Other versions
JPS5934120B2 (en
Inventor
Kenichi Nakamura
Shiro Nankai
Takashi Iijima
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55015258A priority Critical patent/JPS5934120B2/en
Publication of JPS56113298A publication Critical patent/JPS56113298A/en
Publication of JPS5934120B2 publication Critical patent/JPS5934120B2/en
Expired legal-status Critical Current

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

Abstract

PURPOSE: To determine the freshness of foods, especially that of fish meat, easily and rapidly, by reacting a food extract liquid with an enzyme having selectivity to inosinic acid, inosine, and hypoxanthine, and detecting the concentration changes of the compounds caused by the enzymatic reaction.
CONSTITUTION: A liquid specimen obtained by the extraction of a food is treated with an enzyme which reacts specifically with each of inosinic acid (IMP), inosine (HxR) and hypoxanthine (Hx), and the change of the concentration of each component caused by the enzymatic reaction is determined by an electrochemical means. The freshness of the food can be obtained as the L-value or the M-value given by the formulas. Examples of the enzyme are : IMP dehydrogenase for IMP, N-ribosylpurine ribohydrolase for HxR, and xanthine oxidase for Hx. The electrode for the electrochemical determination is, e.g. a thin-layer electrode composed of immobilized inosinase and xanthine oxidase, and the one composed of immobilized 5'-nucleotidase, inosinase and xanthine oxidase.
COPYRIGHT: (C)1981,JPO&Japio
JP55015258A 1980-02-08 1980-02-08 Food freshness determination method Expired JPS5934120B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55015258A JPS5934120B2 (en) 1980-02-08 1980-02-08 Food freshness determination method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55015258A JPS5934120B2 (en) 1980-02-08 1980-02-08 Food freshness determination method

Publications (2)

Publication Number Publication Date
JPS56113298A true JPS56113298A (en) 1981-09-07
JPS5934120B2 JPS5934120B2 (en) 1984-08-20

Family

ID=11883823

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55015258A Expired JPS5934120B2 (en) 1980-02-08 1980-02-08 Food freshness determination method

Country Status (1)

Country Link
JP (1) JPS5934120B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107256A (en) * 1982-12-13 1984-06-21 Ajinomoto Co Inc Measuring method of freshness
JPS59232097A (en) * 1983-05-16 1984-12-26 Shokuhin Sangyo Center Method and apparatus for determination of freshness
JPH03262498A (en) * 1990-03-12 1991-11-22 Nichirei Corp Freshness determination of fishes and shellfishes and determination device
JP2012047606A (en) * 2010-08-27 2012-03-08 Fujidenoro Co Ltd Nucleic acid related substance measurement system and nucleic acid related substance measurement method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03107612A (en) * 1989-09-20 1991-05-08 Sankyo Seiki Mfg Co Ltd Oil-impregnated sintered bearing
JPH0396426U (en) * 1990-01-24 1991-10-02

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59107256A (en) * 1982-12-13 1984-06-21 Ajinomoto Co Inc Measuring method of freshness
JPS59232097A (en) * 1983-05-16 1984-12-26 Shokuhin Sangyo Center Method and apparatus for determination of freshness
JPH043960B2 (en) * 1983-05-16 1992-01-24
JPH03262498A (en) * 1990-03-12 1991-11-22 Nichirei Corp Freshness determination of fishes and shellfishes and determination device
JP2012047606A (en) * 2010-08-27 2012-03-08 Fujidenoro Co Ltd Nucleic acid related substance measurement system and nucleic acid related substance measurement method

Also Published As

Publication number Publication date
JPS5934120B2 (en) 1984-08-20

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