Volatile compounds and overall quality of ‘Braeburn’ apples after long-term storage: Interaction of innovative storage technologies and 1-MCP treatment
Volatile compounds and overall quality of ‘Braeburn’ apples after long-term storage: Interaction of innovative storage technologies and 1-MCP treatment
复制标题
DOI：
10.1016/j.scienta.2019.109039
复制
发表时间：
2020-02
影响因子：
4.3
通讯作者：
S. F. P. Schmidt;E. Schultz;Vagner Ludwig;Magno Roberto Pasquetti Berghetti;F. Thewes;R. O. Anese;V. Both;A. Brackmann
中科院分区：
文献类型：
--
作者：
S. F. P. Schmidt;E. Schultz;Vagner Ludwig;Magno Roberto Pasquetti Berghetti;F. Thewes;R. O. Anese;V. Both;A. Brackmann
在本研究中，我们评价了在2.5°C下保存9个月后Braeburn苹果挥发性化合物和整体品质特征的储存方法，以及它们与1-甲基环丙烯（1-MCP）处理的关系。我们还建议评估甲基和乙基酯是否与肉分解发生率有关。贮藏设计由5种气氛条件组成：可控气氛（CA） （1.2 kPa O2）、基于叶绿素荧光的动态控制气氛（DCA-CF）， 3个呼吸商水平：1.3；1.5和1.7 （dca - rq1.3; dca - rq1.5和dca - rq1.7）。在所有条件下，无论是否有1- mcp处理（0.625 μL L−1），co2均保持在0.7 kPa，相对湿度为94±1%。由于ACC氧化酶活性降低，1-MCP保持较高的果肉硬度，抑制乙烯产量和内部乙烯浓度（IEC）。在DCA-RQ 1.3、1.5和1.7的贮藏条件下，1-MCP处理对乙酸乙酯没有还原作用。在不添加1-MCP的情况下，dca - rq1.3的储存使果肉紧致度和可滴定酸度维持得更好。甲酯和乙酯与肉分解没有相关性。
In this study, we evaluated storage methods which sustains ‘Braeburn’ apples volatile compounds and overall quality characteristics after 9 months of storage at 2.5 °C, and their relation with 1-methylcyclopropene (1-MCP) treatment. We also proposed to evaluate if there was a relation of the methyl and ethyl esters with flesh breakdown incidence. The storage design was composed by five atmosphere conditions: controlled atmosphere (CA) (1.2 kPa O2), dynamic controlled atmosphere based on the chlorophyll fluorescence (DCA-CF), and three levels of respiratory quotient: 1.3; 1.5 and 1.7 (DCA-RQ 1.3; DCA-RQ 1.5 and DCA-RQ 1.7). In all conditions, the CO2was kept at 0.7 kPa and relative humidity was 94 ± 1 %, whether without or with 1-MCP treatment (0.625 μL L−1). 1-MCP maintained higher flesh firmness, suppresses the ethylene production and internal ethylene concentration (IEC), due to lower ACC oxidase enzyme activity. Ethyl acetate was not reduced by 1-MCP treatment in DCA-RQ 1.3, 1.5 and 1.7 storage conditions. Without 1-MCP, DCA-RQ 1.3 storage resulted in better flesh firmness and titratable acidity maintenance. There was no correlation of methyl and ethyl esters with flesh breakdown.