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Effect of postharvest ultraviolet‐C treatment on the proteome changes in fresh cut mango ( Mangifera indica L. cv. Chokanan)
Author(s) -
George Dominic Soloman,
Razali Zuliana,
Santhirasegaram Vicknesha,
Somasundram Chandran
Publication year - 2016
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.7454
Subject(s) - postharvest , mangifera , ripening , shelf life , chemistry , food science , horticulture , botany , biology
BACKGROUND Postharvest treatments of fruits using techniques such as ultraviolet‐C have been linked with maintenance of the fruit quality as well as shelf‐life extension. However, the effects of this treatment on the quality of fruits on a proteomic level remain unclear. This study was conducted in order to understand the response of mango fruit to postharvest UV ‐C irradiation. RESULTS Approximately 380 reproducible spots were detected following two‐dimensional gel electrophoresis. Through gel analysis, 24 spots were observed to be differentially expressed in UV ‐C treated fruits and 20 were successfully identified via LCMS / MS . Postharvest UV ‐C treatment resulted in degradative effects on these identified proteins of which 40% were related to stress response, 45% to energy and metabolism and 15% to ripening and senescence. In addition, quality and shelf‐life analysis of control and irradiated mangoes was evaluated. UV ‐C was found to be successful in retention of quality and extension of shelf‐life up to 15 days. Furthermore, UV ‐C was also successful in increasing antioxidants (total flavonoid, reducing power and ABTS scavenging activity) in mangoes. CONCLUSION This study provides an overview of the effects of UV ‐C treatment on the quality of mango on a proteomic level as well as the potential of this treatment in shelf‐life extension of fresh‐cut fruits. © 2015 Society of Chemical Industry