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中國精品科技期刊2020
安容慧,陳興開,常子安,等. 采后不同時間壓差預冷對水蜜桃貨架品質和香氣成分的影響[J]. 食品工業科技,2024,45(9):317?324. doi: 10.13386/j.issn1002-0306.2023060148.
引用本文: 安容慧,陳興開,常子安,等. 采后不同時間壓差預冷對水蜜桃貨架品質和香氣成分的影響[J]. 食品工業科技,2024,45(9):317?324. doi: 10.13386/j.issn1002-0306.2023060148.
AN Ronghui, CHEN Xingkai, CHANG Zi'an, et al. Effect of Forced-air Pre-cooling at Different Postharvest Time on Shelf Quality and Aroma Components of Honey Peach[J]. Science and Technology of Food Industry, 2024, 45(9): 317?324. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2023060148.
Citation: AN Ronghui, CHEN Xingkai, CHANG Zi'an, et al. Effect of Forced-air Pre-cooling at Different Postharvest Time on Shelf Quality and Aroma Components of Honey Peach[J]. Science and Technology of Food Industry, 2024, 45(9): 317?324. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2023060148.

采后不同時間壓差預冷對水蜜桃貨架品質和香氣成分的影響

Effect of Forced-air Pre-cooling at Different Postharvest Time on Shelf Quality and Aroma Components of Honey Peach

  • 摘要: 為研究在冷鏈流通條件下,采后不同時間壓差預冷對水蜜桃常溫貨架品質的影響,以‘早生’水蜜桃為試材,分別將2組水蜜桃在采后3 h和6 h進行壓差預冷,然后經5 ℃運輸12 h和5 ℃配送12 h后,置于25 ℃下模擬貨架貯藏5 d。觀察貨架期間水蜜桃的品質變化并進行感官評定,測定并分析水蜜桃的失重率、腐爛率、色差值、硬度、脆性、可溶性固形物、可滴定酸、抗壞血酸(VC)、總酚含量和香氣成分的變化。結果表明:采后6 h預冷對水蜜桃貨架品質的影響并不明顯,而采后3 h預冷可維持水蜜桃較高的外觀品質,顯著降低了水蜜桃的腐爛率,抑制了L*值的下降,a*值的升高(P<0.05),維持較高的可溶性固形物、可滴定酸、VC和總酚的含量,減緩了果實清香型香氣成分含量的下降及花香型和果香型香味成分含量的升高,進而延緩水蜜桃的后熟衰老。因此,在水蜜桃生產中采后宜在3 h內快速進行預冷,可提高水蜜桃的品質,有效延長貨架期。

     

    Abstract: To investigate the effects of forced-air pre-cooling at different postharvest intervals on the shelf quality of honey peaches under cold chain circulation conditions, a study was conducted using ‘Zaosheng’ honey peaches as the experimental material. The experiment comprised of two groups: One group of honey peaches underwent forced-air pre-cooling 3 hours after harvest, while the other group underwent pre-cooling 6 hours after harvest. Following pre-cooling, the honey peaches were transported at a low temperature 5 ℃ for 12 hours, followed by an additional 12 hours of low-temperature delivery. Subsequently, the honey peaches were stored on simulated shelves at 25 ℃ for 5 days. The quality changes of honey peaches during shelf life were observed and sensory evaluation was carried out. The weight loss rate, decay rate, color difference, hardness, brittleness, soluble solid, titratable acid, VC, total phenol content and aroma components of honey peaches were measured and analyzed. The results indicated that the effect of pre-cooling at 6 hours after harvest on the shelf quality of honey peaches was found to be insignificant. Conversely, pre-cooling at 3 hours after harvest demonstrated significant benefits in terms of maintaining higher appearance quality and sensory scores of honey peaches. It also notably reduced the decay rate, inhibited the decline in L* value and the increase in a* value (P<0.05), and preserved higher levels of soluble solid, titratable acid, VC, and total phenol content. Furthermore, it hindered the decrease of fragrance aroma components and the increase of fragrance components of flowers and fruits. Thereby delaying the post-ripening and aging of honey peaches. In conclusion, for optimal honey peaches production, it is recommended to implement prompt pre-cooling within 3 hours after harvest. This practice can enhance the quality of honey peaches during their shelf life and extend their overall longevity.

     

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