期刊
POSTHARVEST BIOLOGY AND TECHNOLOGY
卷 108, 期 -, 页码 111-118出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.postharvbio.2015.06.012
关键词
Peach; Fruit quality; Phenolic; Antioxidant; 1-Methylcyclopropene (1-MCP); HPLC
资金
- National Basic Research Program (973) of China [2013CB127106]
This study investigated the postharvest characters, phenolic compounds and total antioxidant activities (TAA) in response to 1-methylcyclopropene (1-MCP) during the ripening process of peach (Prunus persica L. cv. Yuhualu) fruit. Peaches were treated with air (control) or 5 mu L L-1 of 1-MCP for 24h, followed by storage for up to ten days at 20 degrees C. 1-MCP treatment best retained firmness, soluble solids, titratable acidity and ascorbic acid. Additionally, ethylene production and respiration rate were delayed. Moreover, treatment with 1-MCP effectively postponed the onset of peak values of phenolic compounds positively identified in the peach fruit. TAA is an important nutritional attribute in the human diet. Our study showed that 1-MCP delayed the increase of antioxidant activity and suppressed TAA during the prolonged ripening period. These results demonstrated that 1-MCP treatment is a good practice for maintaining fruit quality, but may have complex effects on phenolic metabolism and antioxidant activity. (C) 2015 Elsevier B.V. All rights reserved.
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