Fuji apple (Malus × domestica Borkh.) is a popular fruit cultivar and occupies an important position in the fruit market due to its excellent flavor and storage quality. Ethylene emission can induce respiration, which would reduce postharvest quality and increase storage losses. In order to maintain fruit quality and extend shelf life, apples are usually stored in a low-temperature environment after harvest to reduce the formation of ethylene. Volatile aroma components are regarded as one of the most important aspects of flavor quality and a key factor for apple quality grading and customer satisfaction. Ethylene emission and its relationship with volatile aromas during low temperature, however, have not been determined. In this study, the dynamic changes of volatile aroma compounds of Fuji apples stored at 4 °C were detected and analyzed for 42 days. The variation of ethylene released from Fuji apple was studied correspondingly. The results showed that ethyl butyrate, ethyl caproate, ethyl 2-methylbutyrate and 2-methylbutyl acetate were the main aroma components of Fuji apple. The change in ethylene emission and the normalized peak area of volatile aroma compounds exhibited a similar tendency that increased significantly from the 3rd day to the peak on the 14th day and then decreased; there was a positive linear correlation between them with a correlation coefficient of 0.79 (P < 0.05). Therefore, ethylene release can be used as a potential indicator for evaluation of volatile aroma compounds in apples. Using ethylene emission as an indicator could reduce the difficulty and complexity of volatile aroma evaluation, which could be a new non-destructive inspection choice for apple flavor quality assessment.

富士苹果（苹果 × 家蝇Borkh。）是一种受欢迎的水果品种，由于其出色的风味和储藏品质而在水果市场上占有重要地位。排放乙烯会诱发呼吸，这会降低收获后的质量并增加储存损失。为了保持水果品质并延长保质期，苹果通常在收获后存放在低温环境中，以减少乙烯的形成。挥发性香气成分被视为风味品质的最重要方面之一，并且是影响苹果品质等级和客户满意度的关键因素。但是，尚未确定乙烯在低温下的排放及其与挥发性香气的关系。在这项研究中，检测并分析了42天储存在4°C的富士苹果中挥发性香气化合物的动态变化。相应地研究了富士苹果释放出的乙烯的变化。结果表明，丁酸乙酯，己酸乙酯，2-甲基丁酸乙酯和乙酸2-甲基丁酯是富士苹果的主要香气成分。乙烯释放量的变化和挥发性香气化合物的归一化峰面积显示出相似的趋势，从第3天到第14天达到峰值，然后下降；它们之间存在线性正相关，相关系数为0.79（乙烯释放量的变化和挥发性香气化合物的归一化峰面积显示出相似的趋势，从第3天到第14天达到峰值，然后下降；它们之间存在线性正相关，相关系数为0.79（乙烯释放量的变化和挥发性香气化合物的归一化峰面积显示出相似的趋势，从第3天到第14天达到峰值，然后下降；它们之间存在线性正相关，相关系数为0.79（P <0.05）。因此，乙烯释放可以用作评估苹果中挥发性香气化合物的潜在指标。使用乙烯排放作为指标可以减少挥发性香气评估的难度和复杂性，这可能是苹果风味质量评估的一种新的无损检测选择。