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中国精品科技期刊2020
周晓璐,李雅雯,许倩,等. 新疆椒麻鸡腿的品质变化及货架期预测[J]. 食品工业科技,2024,45(7):306−312. doi: 10.13386/j.issn1002-0306.2023040243.
引用本文: 周晓璐,李雅雯,许倩,等. 新疆椒麻鸡腿的品质变化及货架期预测[J]. 食品工业科技,2024,45(7):306−312. doi: 10.13386/j.issn1002-0306.2023040243.
ZHOU Xiaolu, LI Yawen, XU Qian, et al. Quality Changes and Shelf Life Prediction of Xinjiang Pepper Chicken Legs[J]. Science and Technology of Food Industry, 2024, 45(7): 306−312. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2023040243.
Citation: ZHOU Xiaolu, LI Yawen, XU Qian, et al. Quality Changes and Shelf Life Prediction of Xinjiang Pepper Chicken Legs[J]. Science and Technology of Food Industry, 2024, 45(7): 306−312. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2023040243.

新疆椒麻鸡腿的品质变化及货架期预测

Quality Changes and Shelf Life Prediction of Xinjiang Pepper Chicken Legs

  • 摘要: 为了探究新疆椒麻鸡腿贮藏期间品质变化并对其货架期进行预测。本文以新疆椒麻鸡腿为研究对象,以酸碱度值(Potential of hydrogen,pH)、色泽、硫代巴比妥酸值(Thiobarbituric acid reactive substances,TBARS)、挥发性盐基氮(Total volatile basic nitrogen,TVB-N)、菌落总数、大肠菌群及感官品质为评价指标,利用加速性破坏实验,研究不同贮藏温度(35 ℃和45 ℃)下椒麻鸡腿的品质变化,以感官得分70分或菌落总数接近国家标准作为货架期终点,并预测出常温(25 ℃)下椒麻鸡腿的货架期。结果表明:不同贮藏温度下的椒麻鸡腿随着贮藏时间的不断延长,pH呈先下降后上升趋势,L*值整体呈下降趋势,而a*值、b*值、TBARS值、TVB-N含量和菌落总数均呈上升趋势,感官评分则不断下降,在贮藏期且45 ℃的变化速率高于35 ℃,在35 ℃贮藏温度下,理论货架期为24 d,在45 ℃贮藏温度下,理论货架期为9 d,在货架期终点样品品质出现不可接受的损失。根据Q10模型计算出Q10=2.6,根据模型预测出常温(25 ℃)条件下理论货架期为62 d。

     

    Abstract: In order to investigate the quality changes during the storage period and predict the shelf life of Xinjiang pepper chicken legs, this study focused on pH value, color, thiobarbituric acid reactive substances (TBARS), total volatile basic nitrogen (TVB-N), total viable count, coliform bacteria, and sensory attributes as evaluation criteria. Accelerated degradation tests were conducted to examine the quality changes of the chicken legs at different storage temperatures (35 ℃ and 45 ℃). The shelf life endpoint was based on a sensory score of 70 points or a total bacterial count close to national standards and to predict the shelf life at room temperature (25 ℃). The results showed that with the continuous extension of storage time, the pH value of pepper chicken legs at different storage temperatures first decreased and then increased, and the overall L* value showed a downward trend. The a* value, b* value, TBARS value, TVB-N content, and total bacterial count all showed an upward trend, while the sensory score continued to decline. During the storage period, the change rate at 45 ℃ was higher than 35 ℃. At 35 ℃ storage temperature, the theoretical shelf life was 24 days, and at 45 ℃ storage temperature, the theoretical shelf life was 9 days, and there was an unacceptable loss of sample quality at the end of the shelf life. According to the Q10 model, Q10=2.6 was calculated, and the theoretical shelf life was predicted to be 62 days under room temperature (25 ℃) conditions.

     

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