PURPOSE: To enable the integrated, rapid and simple measurement of various chemical changes relating to the freshness of livestock meat to execute determination of the freshness, by fitting fixed germs to the fore end part of an oxygen electrode.
CONSTITUTION: Fixed germs 3 are fitted to the fore end part of an oxygen electrode 2, and thereby an increase in a free amino acid, low molecular peptide, sugar, etc. in a sample, in other words, the degree of deterioration in freshness, is measured rapidly and simply as the amount of an increase in the respiratory activity of the germs. In more detail, the respiratory activity of the germs increases due to the low molecular pepride, the free amino acid, the sugar, etc. produced in the sample, and thereby the amount of dissolved oxygen in the sample is reduced. This change is detected by the oxygen electrode and measured as an electric response by an ordinary method.
HACHITSUKA NOBUAKI
HOSHI MASAKAZU
| JPS57186499A | 1982-11-16 |
Next Patent: QUANTITATIVE ANALYSIS OF OXIDE IN ALUMINUM ALLOY