Quality Assessment of Sublimation of Hemp Extract
2024
Lozhkin, I. | Rybkin, I. | Sokolov, Yu.
The article presents the results of a study on testing various options for sublimation of hemp extract and comparing the technical and chemical characteristics of the resulting sublimate. The purpose of this study was to find the most optimal drying mode for this extract, while preserving particularly valuable biologically active substances. These components are of particular value in hemp extract, which is necessary for the further preparation of such a product as instant coffee substitute. Due to the fact that this process is divided into several stages, namely drying in a water bath with evaporation of the extract to a certain density and subsequent lyophilization, there is a need to find a correlation between these operations and set specific time frames for them. Based on the results of the study, data were obtained on the optimal moisture content of the extract obtained after preliminary processing of the raw materials, data on a comparative analysis of various evaporation modes in a water bath are presented. Data on the temperature and pressure parameters used when using a lyophilizer and the characteristics of the intermediate product obtained after drying various options of the intermediate product are reflected. The article also reflects the data on the conducted analysis of humidity after evaporation and after sublimation: a comparative analysis of the studied options is given. The results of the analysis of various options of the finished sublimate and its technical characteristics, such as the final humidity of the sublimate, appearance, and time of complete dissolution are given. The best sublimation modification for the product in question is selected in the results of the work.
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