Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4519188 | Postharvest Biology and Technology | 2009 | 7 Pages |
Abstract
The effect of 1-MCP application on overall quality retention of 'Mauritius' and 'McLean's Red' litchi under modified atmosphere packaging (MAP) was investigated. Fruit was packed in biorientated polypropylene bags and exposed to different concentrations of 1-MCP (300, 500 and 1000 nL Lâ1) within the packaging, heat sealed and stored at 2 °C for 14 and 21 d. Of the three concentrations, 300 nL Lâ1 was most effective in preventing browning and retention of colour in both cultivars after 14 and 21 d cold storage. The effect of 1-MCP (300 nL Lâ1) was more promising on 'McLean's Red' than 'Mauritius'. 1-MCP (300 nL Lâ1) significantly reduced the polyphenol oxidase (PPO) and peroxidase (POD) activity, retained membrane integrity, anthocyanin content and prevented the decline of pericarp colour values, L*, a* and b* during storage. At higher concentrations, 1-MCP showed negative effects on membrane integrity, pericarp browning, PPO and POD activity in both cultivars. 1-MCP (1000 nL Lâ1) significantly suppressed fruit respiration and retained the SSC/TA and firmness. Thus, application of 1-MCP in combination with the use of MAP can extend the storage life of 'McLean's Red' up to 21 d.
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Authors
Karen De Reuck, Dharini Sivakumar, Lise Korsten,