Abstract:
The main objective of this study was to assess the
effectiveness of individual application
and combination effect of salicylic acid treatments
(0, 0.5, 1 mM) in both unpacked and
Modified Atmosphere Packaging (MAP) on changing bi
ochemical compounds and
extending postharvest life
of nectarine. Fruits were stored at 0°C with 90% RH
for 40
days. Experimental fruits were analyzed for weight
loss, soluble solids, titratable acidity,
fruit firmness, total phenolic compounds, flavonoid
s, antioxidant capacity and overall
quality during the storage period at 10 day interva
ls. The results showed that total
phenolic, flavonoid concentrations and antioxidant
activity fluctuated progressively until
the 30 days of storage, and then decreased until th
e end of the experiment in all applied
treatments. Salicylic acid treatment especially at
1 mM salicylic acid concentration with
MAP had a positive effect on biochemical compounds.
Furthermore, the combined
treatment of MAP had a clear advantage over the oth
er treatments in reducing weight
loss, retarding softening, increasing shelf life, a
nd maintaining higher overall fruit quality.
The results indicated that salicylic acid with MAP
can be used as a safe alternative
chemical to keep the quality and for storage of nec
tarine.
Keywords:
Biochemical compounds, Postharvest,
Prunus persica
, Quality, Salicylic acid.
