鸡蛋新鲜度指标与贮藏天数相关性研究

Study on the correlation between egg fresh index and storage time

中文关键词:  鸡蛋  新鲜度  贮藏天数  模型  相关性分析

英文关键词:egg  fresh index  storage time  model  correlation analysis

中文摘要:

      目的 分析鸡蛋新鲜度指标与贮藏天数的相关性, 确定新鲜度指标数值显著变化的时间, 建立新鲜度与贮藏时间相关性模型。方法 2 d为一个时间点, 设立12个实验组, 每组5枚鸡蛋, 按照标准中鸡蛋新鲜度评定指标重复3次测定鸡蛋相对密度、气室高度、哈夫单位、蛋黄指数、pH值、失重率。根据Pearson相关系数评价贮藏天数与鸡蛋新鲜度各指标之间的相关程度, Duncan法评价贮藏天数与鸡蛋新鲜度各指标之间的差异显著程度。结果 鸡蛋新鲜度各指标与贮藏天数之间显著相关(P<0.05), 各新鲜度指标数值出现显著变化的时间各不相同, 各天数之间的鸡蛋失重量、失重率差异显著(P<0.05)。结论 本研究所建立的鸡蛋新鲜度与贮藏时间的相关性模型, 可作为鸡蛋新鲜度评价模型。

英文摘要:

      Objective To analyze the correlation between egg freshness index and storage days, determine the significant change time of freshness index value, and establish the correlation model between freshness and storage time. Methods Total of 12 experimental groups were set up with 5 eggs in each group with 2 d as a time point, the relative density, gas chamber height, Haugh unit, yolk index, pH value, and weight loss rate of the eggs were measured 3 times according to the evaluation index of egg freshness in the standard. The correlation between the storage days and each index of egg freshness was evaluated according to Pearson correlation coefficient, and the significant difference between the storage days and each index of egg freshness was evaluated by Duncan method. Results There was a significant correlation between each index of egg freshness and the storage days (P<0.05). The time when the values of each freshness index changed significantly was different. The weight loss and weight loss rate of eggs between different days were significantly different (P<0.05). Conclusion The correlation model between egg freshness and storage time established in this study could be used as an evaluation model for egg freshness.