IB incidence and intensity
As shown in Fig. 1A, 11.11% of the control pineapple fruit showed
IB after 5 days of storage at 10 ◦C plus 2 days at 20 ◦C, and then the
symptoms became serious (Fig. 1A). All treatments with SA showed
IB after 10 days plus shelf-life, but markedly reduced the incidence.
IB intensity associated with IB symptoms incidence and development
was increased. From day 10 to day 20 storage plus 2 days, IB
intensity in PSS + PSI treated fruit and the control ranged from 0.1
to 1.0 and 2.4 to 3.6, accompany IB incidence ranging from 7% to
27% and 92% to 100%, respectively. Treatments with SA completely
eliminated IB initially, and effectively delayed the development
of discoloration with a more marked effect on the intensity of IB
afterwards (Fig. 1B). After 20 days plus shelf-life, PSS + PSI treatment
showed lowest incidence (27%) and sympto