Characterization of carotenoids, proximal analysis, phenolic compounds, anthocyanidins and antioxidant capacity of an underutilized tuber (Tropaeolum tuberosum) from Bolivia

The tubers of Tropaeolum tuberosum , locally known as Isaño and native to the Andean region of South America, have been known since ancient times for their multiple uses in the Bolivian population. They are used both as food in various preparations and in traditional medicine. In this investigation,...

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Bibliographic Details
Published in:Discover Food 2024-12, Vol.4 (1), p.9-12, Article 9
Main Authors: Castañeta, Grover, Miranda-Flores, Daniela, Bascopé, Marcelo, Peñarrieta, J. Mauricio
Format: Article
Language:English
Subjects:
Agriculture
Aluminum
Andean food
Antioxidants
Carotenoids
Caustic soda
Chemistry
Chemistry and Materials Science
Chloride
Cultivars
Flavonoids
Food
Food Microbiology
Food Science
Hydrochloric acid
Isaño
Lutein
Nutrition
Phenols
Polyphenols
Potassium
Revalorization
Sodium
Tropaeolaceae
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Summary:The tubers of Tropaeolum tuberosum , locally known as Isaño and native to the Andean region of South America, have been known since ancient times for their multiple uses in the Bolivian population. They are used both as food in various preparations and in traditional medicine. In this investigation, we report the study of three Isaño cultivars currently consumed in Bolivia. We determined their proximal composition, characterized carotenoids, determined antioxidant capacity, measured total phenols and total flavonoids, and quantified the major polyphenols. The results show that, apart from being a source of important nutrients such as proteins, Bolivian Isaño is a source of antioxidants and has a higher concentration of flavonoids and anthocyanidins, particularly in the purple cultivar. Additionally, we identified the presence of three carotenoids in this food for the first time: Lutein, Neoxanthin, and β-carotene. Through these types of studies, we aim to revalue this food, which is little known both in Bolivia and outside the Andean region of South America. Considering its nutritional properties, we seek to increase its consumption.
ISSN:2731-4286
2731-4286
DOI:10.1007/s44187-024-00078-8