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1MCP處理和貯藏溫度對黑寶石李果肉褐變的影響
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邵毅,，博士生,，主要從事植物采后生理研究，Email： shao [email protected]

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國家自然科學(xué)基金資助項目（30600421,、30430490）和“十一五”國家科技支撐計劃資助 項目（2006BAD22B01）


Effect of 1MCP Treatment and Storage Temperature on  Pulp Browning of Friar Plum (Prunus salicina Lindell. cv. Friar)
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    摘要:

    為了探明李果實褐變機(jī)理并抑制褐變,，研究了1MCP處理和貯藏溫度對黑寶石李果肉 冷害褐變,、機(jī)械傷褐變、多酚氧化酶（PPO）活性,、總酚含量和乙烯釋放的影響,。結(jié)果表明 ，黑寶石李果實在（0±05）℃和（3±05）℃條件下分別貯藏75d和60d會發(fā)生 果心 的冷害褐變,，在（7±05）℃下不會發(fā)生冷害褐變,，但貯藏期短；機(jī)械傷誘導(dǎo)李果實在冷 藏2d后發(fā)生近果皮處果肉的褐變癥狀,。5μL/L 1MCP處理李果實12h后,，在（ 0±05）℃貯藏時可有效抑制冷害褐變和機(jī)械傷褐變，但在（3±05）℃或（7±05） ℃ 時促進(jìn)果肉褐變,。PPO活性和總酚含量的變化與李果實褐變相關(guān),，但不是褐變的誘發(fā)原因。

    Abstract:

    Pulp browning seriously limits the dietary property and commercial value of plum fruit. In order to elucidate the browning mechanism of plum and to inhibit pulp browning, the effect of 1MCP treatment and different storage temperature on chilling injury browning, mechanical injury browning, PPO activity, total phe nols concentration and ethylene production of friar plum was studied. The result s indicated that, chilling injury browning of friar plum developed after 75 or 6 0 days of storage at (0±05)℃ or (3±05)℃, but never developed when fruits wer e stored at (7±05)℃, at which temperature, the storage period was short. Mor eo ver, mechanical injury browning developed in pulp near peel after two days of st orage at low temperature. Browning symptoms were efficiently reduced by 5μL/L 1MCP treatment for 12h when fruits were stored at (0±05)℃. However, w hen the storage temperature was (3±05)℃ or (7±05)℃, fruits treated with 1M CP showed more serious browning symptoms than untreated fruits. In any case, bot h two kinds of browning are related to PPO activity and total phenols concentrat ion. 

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邵 毅,羅云波,陳安均,盧丞文,朱本忠.1MCP處理和貯藏溫度對黑寶石李果肉褐變的影響[J].農(nóng)業(yè)機(jī)械學(xué)報,2010,41(1). Shao Yi, Luo Yunbo, Chen Anjun, Lu Chengwen, Zhu Benzhong. Effect of 1MCP Treatment and Storage Temperature on  Pulp Browning of Friar Plum (Prunus salicina Lindell. cv. Friar)[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(1).

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