Kemerovo, Russian Federation
Kemerovo, Kemerovo, Russian Federation
Kemerovo, Kemerovo, Russian Federation
By extracting bioactive compounds from plant materials, scientists study their chemical composition, biological activity, and potential applications. Plant extracts can be used in functional foods and as additives that improve the quality and safety of products. New extraction methods offer sustainable and efficient technologies. This research featured maceration, ultrasonic extraction, microwave extraction, solvent extraction under pressure, and supercritical fluid extraction, as well as their advantages and disadvantages. The method of supercritical CO2 extraction made it possible to obtain target components from amaranth seeds. The input variables included the degree of fractionation and operating pressure while the temperature was a constant parameter. The degree of fractionation proved to be the key factor for the yield: the lower the fractionation, the higher the extract yield. A higher pressure increased the yield in the case of low particle dispersion. At 300 atm, the extract yield was lower for fractions of 0.31–0.56 and 0.16–0.31 mm than at 200 atm. The total extract yield ranged from 10.00 ± 0.20 to 18.20 ± 0.20% at 100 atm, from 10.54 ± 0.20 to 19.45 ± 0.20% at 200 atm, and from 11.64 ± 0.20 to 16.31 ± 0.20% at 300 atm. The amaranth extract demonstrated good prospects as an additive to vegetable oils, spreads, and cheeses.
extraction, supercritical fluid extraction, amaranth, Amaranthus, extract yield, extraction parameters, biologically active substances
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