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Controlled and modified atmospheres influence chilling injury, fruit quality and antioxidative system of J apanese plums ( P runus salicina L indell)
Author(s) -
Singh Sukhvinder Pal,
Singh Zora
Publication year - 2013
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.2012.03196.x
Subject(s) - chemistry , modified atmosphere , titratable acid , food science , cold storage , prunus salicina , lipid peroxidation , superoxide dismutase , ripening , malondialdehyde , flesh , oxidative stress , reactive oxygen species , vacuum packing , horticulture , biochemistry , shelf life , biology , prunus
Summary Our objective was to compare the effects of controlled atmosphere ( CA ) and modified atmosphere packaging ( MAP ) on fruit quality, chilling injury ( CI ) and pro‐ and antioxidative systems in ‘ B lackamber’ J apanese plums. Matured fruit were stored for 5 and 8 weeks at 0–1 °C in normal air, CA ‐1 (1% O 2 + 3% CO 2 ), CA ‐2 (2.5% O 2 + 3% CO 2 ) and MAP (~10% O 2 and 3.8% CO 2 ). CA was more effective than MAP in retention of flesh firmness and titratable acidity during cold storage. Fruit stored in CA ‐1 showed reduced CI and membrane lipid peroxidation after 5 and 8 weeks of cold storage. Low O 2 atmospheres appeared to limit the generation of reactive oxygen species ( ROS ) and their efficient scavenging through the concerted action of superoxide dismutase and peroxidase. The role of ascorbate–glutathione ( A s A – GSH ) cycle in the regulation of oxidative stress was also studied during and after storage in different atmospheres. In conclusion, optimum CA conditions delayed fruit ripening and CI through augmentation of antioxidative metabolism and suppression of oxidative processes.