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. 2022 Mar 23:2022:7550987.
doi: 10.1155/2022/7550987. eCollection 2022.

Characterization of Nutritional and Bioactive Compound in Three Genotypes of Mashua (Tropaeolum tuberosum Ruiz and Pavón) from Different Agroecological Areas in Puno

Alejandro Coloma  1 , Emilio Flores-Mamani  1 , German Quille-Calizaya  1 , Arturo Zaira-Churata  1 , Jorge Apaza-Ticona  1 , Wilber César Calsina-Ponce  1 , Percy Huata-Panca  1 , Juan Inquilla-Mamani  1 , Félix Huanca-Rojas  1
Affiliations

Characterization of Nutritional and Bioactive Compound in Three Genotypes of Mashua (Tropaeolum tuberosum Ruiz and Pavón) from Different Agroecological Areas in Puno

Alejandro Coloma et al. Int J Food Sci. .

Abstract

Bioactive compounds and nutritional characterization in three genotypes of mashua tubers (Tropaeolum tuberosum Ruiz and Pavón) from different agroecological areas of the Peruvian highlands (3747 at 3888 meters above sea level) were studied. The studied genotypes from different agroecological areas significantly differed for vitamins, amino acids, and bioactive compounds. However, the nutritional characteristics of yellow, purple, and yellow-purple mashua remained unaffected. Its tubers were shown to be important sources of protein and fiber. The nutritional analysis revealed high phosphorus and potassium values, as well as considerable amounts of vitamin C. The amounts of total free amino acids in the genotypes ranged from 2.73 ± 0.450 mg/g dry matter (DM) to 6.825 ± 0.450 mg/g DM. Important total anthocyanins, total flavonoids, total phenolics, tannin content, and antioxidant activity values were obtained from purple genotype. Unexploited colored mashua tubers are proposed as a valuable natural source of phenolics and anthocyanins with high antioxidant activity.

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Conflict of interest statement

The authors declare that there is no conflict of interest regarding the publication of this paper.

Figures

Figure 1
Figure 1
Genotypes of mashua tubers: (a) yellow, (b) purple, and (c) yellow-purple.
Figure 2
Figure 2
Sample HPLC chromatogram of β-carotene at 450 nm.
Figure 3
Figure 3
Effect of agroecological areas on the content of total anthocyanins (TA), total flavonoids (TFA), total phenolics (TP), activity antioxidant (CA), and tannins (TA) from the three mashua genotypes∗. ∗Three mashua genotypes are yellow, purple, and yellow-purple. Expressed in DM (dry matter), GAE (gallic acid equivalents), TE (Trolox equivalents), CGE (cyaniding 3-glociside equivalents), CE (catechin equivalents), TAE and (tannic acid equivalents). The means within a row with different letters are significantly different at p < 0.05. ND: not detected.
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