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中国精品科技期刊2020
刘梦琪,董福佳,刘贵珊. 模拟运输振动对枸杞果实贮藏品质的影响[J]. 食品工业科技,2022,43(21):368−374. doi: 10.13386/j.issn1002-0306.2022020073.
引用本文: 刘梦琪,董福佳,刘贵珊. 模拟运输振动对枸杞果实贮藏品质的影响[J]. 食品工业科技,2022,43(21):368−374. doi: 10.13386/j.issn1002-0306.2022020073.
LIU Mengqi, DONG Fujia, LIU Guishan. Effect of Simulate Transportation Vibration on the Storage Quality of Lycium barbarum Fruit[J]. Science and Technology of Food Industry, 2022, 43(21): 368−374. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022020073.
Citation: LIU Mengqi, DONG Fujia, LIU Guishan. Effect of Simulate Transportation Vibration on the Storage Quality of Lycium barbarum Fruit[J]. Science and Technology of Food Industry, 2022, 43(21): 368−374. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2022020073.

模拟运输振动对枸杞果实贮藏品质的影响

Effect of Simulate Transportation Vibration on the Storage Quality of Lycium barbarum Fruit

  • 摘要: 研究运输振动对枸杞果实贮藏品质的影响,为其采后物流运输减损提供理论指导。实验选取‘宁杞7号’枸杞为试材,采用模拟运输的方法,将瓦楞纸箱固定于振动平台上,在3 Hz的振动频率下进行0(对照)、4、8、12和16 h的振动处理,于4±1 ℃,93%±3%相对湿度(Relative Humidity,RH)的保鲜冰箱中贮藏20 d,测定不同贮藏期内枸杞果实硬度、色泽、超氧阴离子自由基含量以及过氧化氢酶、过氧化物酶和超氧化物歧化酶活性。结果表明,与对照组相比,机械振动加速了硬度和色泽值的下降;超氧阴离子含量、过氧化氢酶、过氧化物酶和超氧化物歧化酶较对照组均有显著升高(P<0.05),其中,16 h振动处理对枸杞果实贮藏期品质变化影响较大。机械振动对枸杞品质的影响是逐渐累积的,振动时间越久对品质的损伤越大,同时加速枸杞果实营养物质降解和品质劣变的速度。因此,在运输过程中避免振动或缩短振动时间具有重要意义。

     

    Abstract: The effect of transport vibration on storage quality of Lycium barbarum fruit was studied, which provided theoretical guidance for the reduction of postharvest Lycium barbarum fruit logistics and transportation damage. In the experiment, ‘Ningqi No. 7’ Lycium barbarum was selected as the test material, and the corrugated box was fixed on the vibration platform by the method of simulated transportation. Vibration treatments for 0 (control), 4, 8, 12 and 16 h were performed at a vibration frequency of 3 Hz. The treated Lycium barbarum was stored in a fresh-keeping refrigerator at 4±1 ℃ and 93%±3% RH for 20 d, detected the hardness, color, superoxide anion free radical content and activities of catalase, peroxidase and superoxide dismutase during different storage periods. The results showed that mechanical vibration accelerated the decrease of hardness and color value content, superoxide anion, catalase, peroxidase and superoxide dismutase were significantly increased (P<0.05). Among them 16 h vibration treatment had a great influence on the quality changes of Lycium barbarum fruit during storage. The impact of mechanical vibration on the quality of Lycium barbarum gradually accumulated, the longer the vibration time, the greater the damage to the quality, which accelerated nutrients degradation and quality deterioration rates of Lycium barbarum fruit. Therefore, it is important to avoid vibration or shorten the vibration time during transportation.

     

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