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A method for separately determining the content of free and bound water in a dry banana vegetable powder using a differential scanning calorimeter

机译：用差示扫描量热仪分别测定香蕉干蔬菜粉中游离水和结合水含量的方法

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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
机译：技术领域本发明涉及食品工业中通过差示扫描量热法对物质的水分含量的研究。方法包括称量样品并用差示扫描量热仪记录样品的热分析图，然后重新称重样品以通过计算确定样品中游离水和结合水的含量，将预样品预热至60°C C，然后冷却至低于样品中水的冰点的零下温度，记录在泄漏容器中样品的热分析图，其温度范围为从所述零下温度到所有水的蒸发温度，其中称量结果的差异用于确定样品中的总水分含量，基于从0°C开始的热分析图上获得的熔化峰的能量，并使用已知的水熔化比能确定样品的总水分。游离水含量，总含水量与游离水含量之间的差用于确定结合水的含量。效果：更高的准确性和信息量n测定值3 cl，1 dwg

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