In this paper, through the research of mass transfer mechanism of the extraction process of soluble solids (SS) in Russian olive, the kinetic model of concentration change for the SS with the solvent multiple B (mL/g), extraction temperature T (K) and extraction time t (h) during extraction process was established for the first time. Russian olive extract concentration values (%) can be calculated in different extraction process, and the extraction process can also be predicted and controlled if the extraction temperature, extraction time and a multiple of solvent are provided. Overall, the absolute errors of the kinetic model are less than ± 1% and the χ2 values are less than χ20.995 values also.
Key words: Russian olive, soluble solid, extraction, mass transfer mechanism.
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