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6330152 
Journal Article 
Isotonic Beverage Pigmented with Water-Dispersible Emulsion from Astaxanthin Oleoresin 
Cerezal Mezquita, P; Espinosa Álvarez, C; Palma Ramírez, J; Bugueño Muñoz, W; Salinas Fuentes, F; Ruiz-Domínguez, MDC 
2020 
1 
Molecules
ISSN: 1420-3049 
25 
4 
English 
32075065 
WOS:000522454500077 
Astaxanthin is a powerful antioxidant, because it neutralizes free radicals and plays a vital role in the prevention of human diseases. The objective of this work was to develop an isotonic beverage (IB) of orange-red color, using an astaxanthin oleoresin emulsion (AOE) that is dispersible in water. This was carried out in order to simulate the color of commercial isotonic beverages (CIB) prepared from artificial pigments. The size of the AOE micelles ranged from 0.15 to 7.60 µm2. The color difference (ΔE) was similar for the samples exposed to dark as well as light conditions. The samples subjected to light stress showed pigment degradation after seven days, followed by a decrease in the concentration of astaxanthin; whereas, the samples exposed to dark conditions remained stable for seven days and then showed a decrease in the concentration of astaxanthin (this decrease ranged from 65% to 76% when compared to the initial content) after a period of 91 days. For the astaxanthin oleoresin (AO) and AOE, the oxygen radical absorbance capacity (ORAC) values reached 5224 and 1968 µmol of trolox equivalents (TE)/100 g, respectively. When exposed to light conditions, the addition of AOE in the IB led to its rapid degradation, while it remained stable in the samples exposed to the dark conditions. 
isotonic drinks; oleoresin astaxanthin; emulsion; stability; antioxidant; HAEMATOCOCCUS-PLUVIALIS; HUMAN HEALTH; ANTIOXIDANT; STABILITY; CAROTENOIDS; DEGRADATION; CAPACITIES; KINETICS; BERRIES; DRINKS