2.1.1. Fruit juice mixture
Oranges (Citrus aurantium, cultivar Salustiana), mango (Mangifera
indica), and papaya (Carica papaya) were purchased from a local supermarket
(Valencia, Spain). Orange, mango and papaya juices were
extracted after appropriate washing and hygienization of the fruits,
then the pulp was removed. The fruit juice mixture was prepared,
based on sensory evaluations of color and appearance of 25 assessors
from the University of Valencia and Agro-Chemistry and Food Technology
Inst., by mixing 32.5% (v/v) of papaya juice, 10% (v/v) of
mango juice, 7.5% (v/v) of orange juice, and water to 100%.