Journal
FOOD CHEMISTRY
Volume 275, Issue -, Pages 681-687Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2018.09.154
Keywords
Antioxidant activity; Bell pepper; DPPH; Postharvest; Sensory evaluation; Storage
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To extend the postharvest shelf-life of green bell pepper (Capsicum annuum L.), an exogenous application of two polyamines, Spermidine and Putrescine (SPD-PUT), was tested in multiple combinations (10 mu M plus 10 mu M, 20 mu M plus 20 mu M, and 30 mu M plus 30 mu M) at 4 +/- 1 degrees C for 40 days. The titratable acidity, protein content, activities of catalase and peroxidase, chlorophyll and capsaicin content gradually decreased for all the treated and untreated fruits throughout the storage period. On the other hand, proline content and antioxidant 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging activity continuously increased with the extension of time-span under storage. Among the three treatment combinations, the combination of 20 mu M SPD and 20 mu M PUT was found to be the optimum, based on the response of all the morphological and physicochemical traits assessed. The same combination was effective in sustaining the quality of green bell pepper following its harvest, for a period of at least 40 days.
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