Title:
METHOD FOR DETERMINING SHELF LIFE OF MILK
Document Type and Number:
WIPO Patent Application WO/2018/201680
Kind Code:
A1
Abstract:
A method for determining a shelf life of milk, comprising: continuously normalizing a storage time at a current temperature to a storage time at a standard temperature, and accumulating the storage time; and comparing the accumulated storage time at the standard temperature with a shelf life at the standard temperature, so as to determine whether the milk is within the shelf life. A sampling monitoring period and a sampling monitoring resolution are appropriately configured, such that during the period, changes in conductivity or a related parameter caused by changes in the milk temperature can be detected, and changes in conductivity or the related parameter caused by changes in milk quality can be ignored. The current temperature is the milk temperature corresponding to the sum of initial conductivity of the milk and cumulative conductivity increments, and the conductivity increment is the change in conductivity recorded in a sampling period. The current temperature is the milk temperature corresponding to the sum of the relevant parameter corresponding to initial conductivity of the milk and cumulative increments of the relevant parameter, and the increment of the relevant parameter is the change in the relevant parameter recorded in a sampling period. Different from the prior art in which the current temperature in normalization is defined as the temperature corresponding to current conductivity of milk, the present invention defines the current temperature in normalization as the temperature corresponding to the sum of the initial conductivity of the milk and the cumulative conductivity increments. On the basis of the difference between the speed of change in milk temperature and the speed of change in milk quality, the sampling period is reasonably configured, the impact of changes in milk quality on determining of the current temperature is eliminated, such that the impact of the temperature on changes in milk quality is accurately reflected, and freshness of milk is accurately determined.
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Inventors:
LU RUNQIAO (CN)
Application Number:
PCT/CN2017/108315
Publication Date:
November 08, 2018
Filing Date:
October 30, 2017
Export Citation:
Assignee:
LU RUNQIAO (CN)
International Classes:
G01N27/20; G07C1/12
Foreign References:
| CN107014874A | 2017-08-04 | |||
| CN203870057U | 2014-10-08 | |||
| US2898549A | 1959-08-04 |
Other References:
SONG, LIRONG ET AL.: "Research on Shelf- life of Partial Freezing Tilapia Fillets", FOOD & MACHINERY, vol. 6, no. 26, 30 November 2010 (2010-11-30), pages 25 - 29
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