Patent ID: 11959860
Assignee: PRODUCTEURS ET PRODUCTRICES ACÉRICOLES DU QUÉBEC
Field: Measurement (Instruments)
Classification: CPC C  G | IPC G

Claim 12:
13. The method of claim 11, wherein said change in absorbance is any one of:
1. an increase in absorbance at a wavelength of about 400 nm to about 1000 nm, relative to an absorbance measurement made on a good flavor maple syrup or maple sap sample;
2. a differential absorbance from the absorbance at any wavelength superior to a maximum wavelength of absorption of said nanoparticle in a good flavor maple syrup or maple sap sample and the absorbance at said maximum wavelength of absorption of said nanoparticle in said maple syrup or maple sap sample;
3. a differential absorbance from a wavelength where absorbance remains stable in any said off-flavor or said good flavor maple syrup or maple sap sample and a wavelength where absorbance changes in said off-flavor maple syrup or maple sap sample;
4. a differential absorbance between any one wavelength ≥561 nm to 1000 nm and any one wavelength between about 5560 nm wavelength and below;
5. a differential absorbance between any one wavelength between ≥560 nm to about 1000 nm and absorbance at any one wavelength between about 490 nm to about 560 nm;
6. a differential absorbance between absorbance at 610 nm and absorbance at any one wavelength between about 490 nm to about 560 nm, and/or between absorbance at 630 nm and absorbance at any one wavelength between about 490 nm to about 560 nm, and/or between absorbance at 640 nm and absorbance at any one wavelength between about 490 nm to about 560 nm; and
7. a change of a wavelength of maximum absorption to a higher wavelength in the off-flavor maple syrup or maple sap sample, compared to a good tasting maple syrup or maple sap sample.