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Idesia (Arica)

On-line version ISSN 0718-3429

Abstract

ASTORGA, Fabiola et al. Seasonal variation of betalaine content in beetroot (Beta vulgaris L.) cultivated under salinity conditions in Lluta valley, Northern Chile. Idesia [online]. 2019, vol.37, n.4, pp.47-53. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292019000400047.

Beetroot (Beta vulgaris L.) is recognized for its composition of bioactive molecules such as betalaine, which makes its consumption significantly beneficial for human health. Its synthesis would be influenced by factors such as salinity, one of the main stresses that characterize the coastal desert valley of Lluta, located in the northern of Chile, added to these characteristics is the excess of boron that limits agricultural diversification of the valley to crops tolerant to this environmental condition. In the present study, the effect of salinity and seasonal temperature on the synthesis of betalaine (betacyanin and betaxanthin) in the Detroit (T0) and Larka (T1) varieties were evaluated, there are significant statistical differences in the synthesis of both biomolecules amongst varieties, not so between growing seasons. The results, as regards the synthesis and content of betalaine, show the feasibility of incorporating Larka as a productive alternative for the Lluta Valley, being possible to allocate its production to fresh consumption or as a raw material for the industry dedicated to the extraction of natural pigments.

Keywords : pigment; antioxidant; stress.

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