Journal
FOOD CHEMISTRY
Volume 237, Issue -, Pages 749-755Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.05.145
Keywords
Electrostatic atomized water particles; Broccoli; Yellowing; Hydrogen peroxide; Catalase; Gene expression; Storage
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The effect of electrostatic atomized water particle (EAWP) treatment on quality maintenance during postharvest storage was determined to clarify a physiological role of reactive oxygen species in broccoli florets. The EAWP treatment suppressed the floret yellowing of broccoli during storage. The hydrogen peroxide content increased immediately after EAWP treatment but then remained at a low level during storage. Catalase (CAT) activity increased rapidly with EAWP treatment and was higher than that in the control for the first 4 days of storage. The BoCAT gene expression level with EAWP treatment also showed a high trend as compared to the control. The gene expressions of BoRboh, BoCu/ZnSOD, and BoAPX showed almost the same tendency with or without EAWP treatment. These findings suggested that hydrogen peroxide formed by EAWP treatment and regulated by CAT could be relevant to maintaining the quality of broccoli. (C) 2017 Elsevier Ltd. All rights reserved.
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