2. Materials and methods
2.1. Plant material
Kiwifruits (Actinidia deliciosa cv. Hayward) were obtained from
Mercabarna (Mercados de Abastecimientos de Barcelona S.A., Barcelona,
Spain) and stored at 2 ± 1 C for 35 days until processing.
The ripening stage of kiwifruits corresponds to 12.6 ± 0.13 Brix,
1.08 ± 0.02 g citric acid per 100 g of fresh weight and 3.49 ± 0.01 for
soluble solid content, titratable acidity and pH, respectively. The
kiwifruits were washed and sanitized with chlorinated water
(200 mg/l) for 5 min at 15 C and rinsed with tap water, drained for
5 min, hand peeled and cut into 6 mm slices with a stainless steel
slicer. The slices were randomly distributed among treatments.