Method for rapidly predicting freezer storage time of frozen pork based on reflectance ratio of two near-infrared bands
US11448592B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2017 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Mar 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention discloses a method for rapidly predicting freezer storage time of frozen pork based on reflectance ratio of two near-infrared bands. Firstly, the near-infrared spectra information of the frozen pork is obtained by a near-infrared spectrometer, and the near-infrared spectra are analyzed to obtain center values of bands centered on 1500 nm, 1350 nm and 1890 nm characteristic peaks. The ratio thereof is treated as a eigenvector, which is substituted into the characteristic exponential function based on the eigenvector and freezer storage time to calculate the freezer storage time of frozen pork. By near-infrared spectroscopy technology, the invention directly detects the freezer storage time of pork in a frozen state, significantly reduces the time required by the conventional method, and has the advantages of being fast and non-destructive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.