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Revista Colombiana de Ciencias Químico - Farmacéuticas
versão impressa ISSN 0034-7418
Resumo
ERASO-GRISALES, Soany; MEJIA-ESPANA, Diego e HURTADO-BENAVIDES, Andrés. Extraction of glycoalkaloids of native potato (Solanum phureja) ratona morada variety with pressurized liquids. Rev. colomb. cienc. quim. farm. [online]. 2019, vol.48, n.1, pp.181-197. ISSN 0034-7418. https://doi.org/10.15446/rcciquifa.v48n1.80074.
Potato peel is a waste originated by its agro-industrial processing, generating an environmental impact due to its inadequate handling or elimination. However, potato peel is a good source of functional ingredients such as glycoalkaloids (GA). This study investigated the extraction of two GA (α-solanine and α-chaconine) from native potato rind (Solanum phureja) ratona morada variety from the department of Nariño-Colombia, using the technology of extraction with pressurized liquids (PLE), through a experimental central composite design, in order to determine the effect of pressure (P) and temperature (T), on the performance and composition of GA. The extracts were analyzed by liquid chromatography HPLC. The results obtained allowed us to establish that the temperature exerted a significant effect (p <0.05) on the yield, α-solanine and α-chaconine. For the yield an optimum value of 5.62 % w/w was reached. α-solanine and α-chaconine increased their concentration as the temperature decreased. The extraction with pressurized liquids promises to be a good alternative in the use of organic solvents to obtain bioactive compounds of potato husk.
Palavras-chave : Solanum phureja; potato peel; extraction with pressurized liquid; glyco-alkaloids.