FIELD: food industry.
SUBSTANCE: invention relates to food industry and can be used for quality control of honey by determining thermal effect on honey. Method involves preparation of aqueous solutions of honey, subsequent shooting 1H spectra on an NMR spectrometer using a standard pulse sequence zgpr with solvent signal suppression, phasing of spectra in automatic mode, performing base line correction, integration of doublet signal of anomeric protons in honey composition β-glucose at 4.45 ppm (J=7.9 Hz) and doublet signal of anomeric protons α-glucose at 5.05 ppm (J=3.7 Hz). At that ratio of quantity is calculated α/β – forms of glucose in analysed samples by dividing integral intensities of target signals, and value of ratio >1 is determined on the absence of high temperatures, and if ratio <1 – on the presence of high temperatures on honey.
EFFECT: accelerated and high accuracy of determining the effect of high temperatures on honey.
1 cl, 3 tbl, 6 dwg
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Authors
Dates
2019-08-06—Published
2019-01-22—Filed