TITLE:
Chemical Study and Determination of the Antioxidant Activity of Three Varieties Tropaeolum tuberosum (Mashua)
AUTHORS:
Jiménez Heinert María Elena, Gutiérrez Gaitén Yamilet Irene, Yamilet Guaranda Iván, Miranda Martínez Migdalia
KEYWORDS:
Antioxidant Activity, Chemical Composition, Gas Chromatography-Mass Spectrometry
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.10 No.12,
December
27,
2019
ABSTRACT: Ecuador has among its foods a number of potatoes and
tubers that are not only nutritious, but
are also attributed properties as coadjutant in the treatment of different
illnesses. The objective of this study was to conduct a comparative study of
the mashua tuber (Tropaeolum tuberosum spp tuberosum Ruíz &
Pavón, Kuntze), in its three pink, yellow and black varieties, by comparing the
physicochemical characteristics and antioxidant activity. The comparative study
was carried out on tubers obtained in the province of Pichincha, Quito-Ecuador.
The physicochemical parameters were determined by the identification of the
secondary metabolites present in the hydroalcoholic extracts, the
quantification of phenols and flavonoids, and the characterization of the
extracts by gas chromatography coupled to mass spectrometry and the antioxidant
activity by three test methods. As a result, significant differences
were found between the three varieties studied.