Choice of methods and criteria for evaluating the effectiveness of the extraction process from raw materials of plant origin

Conclusion
The main process in the processing industries is the most complete and waste-free processing of raw materials of plant and animal origin - extraction. On the basis of a theoretical analysis of the results of experimental studies of the thermophysical properties of pure substances and mixtures, it is shown that the mathematical description of the phase equilibrium of pure substances and mixtures in the critical region, as well as the prediction of critical parameters, is a topical task in the development of new extraction theories in order to effectively control the quality of the final product. . In this case, the calculation-theoretical and experimental data on the influence of various factors on supercritical extraction form the basis. It has been established that qualitatively they give an understanding of the quantitative formalization of factors that affect the dissolving power of supercritical fluids. On the basis of the thermodynamic approach, it has been established that in the vicinity of the critical point of the solvent, obvious anomalies of the transport and thermodynamic properties of the solvent appear , namely, the latter circumstance determines the high dissolving power of supercritical fluids compared to traditional solvents. Thus, supercritical extraction is a new , very promising, environmentally balanced and clean, as well as economically feasible technological process, which is based on the unique properties of solvents in supercritical states to extract valuable substances and components.


Reference
1. Butto S.V. and others. Using the extractive properties of liquid carbon dioxide to extract valuable components from plant materials. KubGTU , Krasnodar, 1998. 38 p .
2. Kasvanov G.I. Technological bases for the processing of vegetable raw materials, Russian Agricultural Academy , Moscow, 1994. - 132 p.
3. Prusty , S., Pradhan , S. & Mishra, S. Analysis of Extraction behavior of Nd (III), Sm (III) and Eu (III) from EDTA solution using [TOA-D2] in kerosene: Thermophysical properties, Process parameters and Extraction mechanism. Chem. Pap. (2022). https://doi.org/10.1007/s11696-022-02428-1 .
4. Zhang, M., Zhang, X., Liu, Y. et al. Insights into the relationships between physicochemical properties, solvent performance, and applications of deep eutectic solvents. Environ Sci Pollut Res 28 , 35537–35563 (2021). https://doi.org/10.1007/s11356-021-14485-2 .
5. Albayati , N., Kadhom , M., Abdullah, G. et al. Thermal Conductivity of Room Temperature Deep Eutectic Solvents. J. Therm. sci. 30 , 1960–1972 (2021). https://doi.org/10.1007/s11630-021-1428-1.
6. Ahangari , B., Sargolzaei , J. RETRACTED ARTICLE: Supercritical Fluid Extraction of Oils from Pomegranate Seeds. J Am Oil Chem soc 94 , 1415 (2017). https://doi.org/10.1007/s11746-011-1789-9.
7. Zhang, X., Ji , F., Li, Y. et al. Rapid Determination of Two Triterpenoid Acids in Chaenomelis Fructus Using Supercritical Fluid Extraction On-line Coupled with Supercritical Fluid Chromatography. ANAL. SCI. 34 , 407–413 (2018). https://doi.org/10.2116/analsci.17P434 .
8.Salamatin , AA, Khaliullina , AS Increasing the Informativeness of Supercritical Fluid Extraction Experiments. Russ. J Phys. Chem. B 15 , 1320–1323 (2021). https://doi.org/10.1134/S1990793121080170 .
9. Medvedevskikh , MY, Sergeeva , AS Problems of Ensuring Metrological Traceability of Quality Control Measurement Results for Food Products and Food Raw Materials. Meastech _ 63 , 242–248 (2020). https://doi.org/10.1007/s11018-020-01777-1.
10. Volkov , VA, Voronkov , MV, Misin , VM et al. Aqueous Propylene Glycol Extracts from Medicinal Plants: Chemical Composition, Antioxidant Activity, Standardization, and Extraction Kinetics. Inorg Mater 57 , 1404–1412 (2021). https://doi.org/10.1134/S0020168521140120
11. Trujillo-Echeverria, L., Lara Fiallos , MV, de la Vega Quintero, JC et al. Technical-economic analysis of the solvent-method optimization of Origanum vulgare essential oil extraction based on technical and quality criteria. S.N.Appl . _ Sci . 2 , 2133 (2020). https://doi.org/10.1007/s42452-020-03955-w.
12. Abdulkadirov M. Dadishev Kh.S. Thermal physics of high temperatures, 1994 v 32., No. 2 - 299p.