METHOD FOR SEPARATE DETERMINATION OF CONTENT OF FREE AND BOUND WATER IN DRY BANANA POWDER USING DIFFERENTIAL SCANNING CALORIMETER Russian patent published in 2019 - IPC G01N33/10 G01N5/04 

FIELD: measurement technology.

SUBSTANCE: invention relates to the study of the moisture content of substances by differential scanning calorimetry methods in the food industry. Method includes weighing a sample and recording the thermogram of the sample with a differential scanning calorimeter and re-weighing the sample to determine the content of free and bound water in the sample by calculation, the pre-sample being preheated to a temperature of 60 °C, then cooled to a sub-zero temperature below the freezing point of the water in the sample, recording the thermogram of the sample in a leaky container in the temperature range from said sub-zero temperature to the evaporation temperature of all water, wherein the difference in weighing results is used to determine the total water content in the sample, based on the energy of the melting peak obtained on the thermogram starting at a temperature of 0 °C and the known specific energy of water melting is used to determine the content of free water, and the difference between the total water content and the content of free water is used to determine the content of bound water.

EFFECT: higher accuracy and information value of determination.

3 cl, 1 dwg