1-MCP处理结合不同低温条件对水蜜桃风味质地及生理的影响
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周慧娟,女,上海市农业科学院副研究员,博士。

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上海市农业科学院攀高计划(编号:PG21221);农业农村部科技教育司:国家桃产业技术体系项目(编号:CARS-31);上海市科委重点攻关项目(编号:18391901600)


Effect of 1-MCP combined with low temperature storage on flavor, texture and physiology of honey peach
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    摘要:

    目的:探讨不同浓度1-MCP处理结合(10±1) ℃贮藏对果实风味和质地的影响。方法:以软溶质湖景蜜露水蜜桃为试材,1-MCP处理浓度分别为3.24,6.48,12.96 μL/L,放置于(10±1) ℃条件下贮藏;分别以不做任何处理、放置于温度为(10±1) ℃和(1±1) ℃冷库中贮藏的果实为对照1(CK1)和对照2(CK2),每隔4 d对冷藏期间的果实品质进行测定;将冷藏28 d的不同处理组果实取出于温度为(20±2) ℃、相对湿度为65%~70%的条件下放置3 d,进行货架品质测定。结论:与CK1相比,不同浓度1-MCP处理结合(10±1) ℃贮藏延缓了乙烯释放高峰的出现、抑制了果实的乙烯释放速率和呼吸强度,但仍显著高于CK2;不同浓度1-MCP处理结合(10±1) ℃ 贮藏的果实糖酸含量均显著高于CK2。其中,浓度为6.48 μL/L的1-MCP处理结合(10±1) ℃贮藏,可使果实保持较高的可溶性固形物和糖酸含量,抑制果实甜味、酸味和鲜味的丧失,综合风味佳;可显著降低果实的乙烯释放速率和呼吸强度,较好地保持果实固有质地。结论:浓度为6.48 μL/L的1-MCP处理结合(10±1) ℃既可延缓果实的软化,又可使果实次生物质正常代谢,较好地保持果实固有风味和质地,果实安全贮藏期达20 d,可作为代替单一低温贮藏的保鲜技术之一。

    Abstract:

    Objective:The effects and correlations of different concentrations of 1-MCP combined with (10±1) ℃ storage on flavor and texture of fruit were discussed.Methods:Soft solute' Hujingmilu' peach was used as test material. The concentration of 1-MCP treatment was 3.24, 6.48 and 12.96 μL/L respectively, then were stored at (10±1) ℃. The fruits stored at (10±1) ℃ and (1±1) ℃ without any treatment were used as control. The ethylene release rate, respiration intensity, fruit texture, sugar and acid content, five flavors of fruits in different treatment groups were measured every 4 days during cold storage. The fruit of different treatment groups that have been stored for 28 days were taken out and placed at a temperature of (20±2) ℃ and a relative humidity of 65% ~ 70% for 3 days, and the shelf quality was determined.Results:Compared with CK1, different concentrations of 1-MCP treatment stored at (10 ± 1) ℃ can delay the occurrence of ethylene release peaks, inhibit the ethylene release rate and breathing strength of the fruit, but still significantly higher than CK2; The sugar and acid content of that was significantly higher than CK2. 1-MCP treatment with a concentration of 6.48 μL/L combined with (10±1) ℃ storage can keep high TSS, sugar and acid content of fruits, inhibit the loss of sweetness, sourness, umami, and have good comprehensive flavor; It can significantly reduce the ethylene release rate and respiration intensity of fruits, and keep the inherent texture of fruits well.Conclusion:1-MCP with the concentration of 6.48 μL/L combined with (10±1) ℃ can not only delay the softening of fruits, but also make the secondary substances of fruits metabolize normally, and keep the inherent flavor and texture of fruits well. It can prolong the safe storage period of 'Hujingmilu' peach fruit to 20 days, which can be used as one of the fresh-keeping techniques instead of single low temperature storage.

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周慧娟,叶正文,张夏南,等.1-MCP处理结合不同低温条件对水蜜桃风味质地及生理的影响[J].食品与机械,2022,(3):139-146.
ZHOU Hui-juan, YE Zheng-wen, ZHANG Xia-nan, et al. Effect of 1-MCP combined with low temperature storage on flavor, texture and physiology of honey peach[J]. Food & Machinery,2022,(3):139-146.

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  • 在线发布日期: 2022-07-07
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