含酱香型白酒广式香肠风干期挥发性风味物质的变化

目的：改善广式香肠风味并创新产品。方法：通过GC-MS检测风干0，2，4 d的含酱香白酒广式香肠的挥发性风味物质，利用多元统计分析挥发性风味物质的变化规律。结果：通过GC-MS技术共检测出39种挥发性风味物质，包括烃类18种、酯类12种、醛类2种、醚类2种、醇类1种、酸类1种、酮类1种和其他类2种，其中酯类、醛类、醇类和烃类物质含量在风干过程中显著上升，酮类和醚类物质含量在风干过程中呈先上升后下降趋势，酸类物质含量在风干过程中无显著变化。通过VIP值鉴定出5种差异风味物质，可作为区分不同风干时间香肠的潜在生物标志物。通过OAV共筛选出6种关键性风味成分，2-甲基丁酸乙酯、己酸乙酯和丁酸乙酯是3组香肠中共有的关键风味物质，在风干过程中含量显著增加。结论：添加酱香型白酒可增加广式香肠挥发性风味物质的种类和含量，并促进新的风味物质形成。

Changes of volatile flavor compounds in Cantonese sausage containing sauce-flavor Baijiu during air-drying

Objective: This study aimed to improve the flavor of Cantonese sausage and innovate the product. Methods: The volatile flavor compounds in the Cantonese sausages containing sauce-flavor Baijiu air-dried for 0 day, 2 days and 4 days were detected by GC-MS, and the changes of volatile flavor compounds were analyzed by multivariate statistics. Results: A total of 39 volatile flavor compounds were detected through GC-MS technology, including 18 hydrocarbons, 12 esters, 2 aldehydes, 2 ethers, 1 alcohol, 1 acid, 1 ketone and 2 other compounds. Esters, aldehydes, alcohols and hydrocarbons significantly increased during air-drying, while ketones and ethers showed a trend of first increasing and then decreasing during air-drying. The acids did not change significantly during air-drying. Five different flavor substances were identified through VIP values, which could be served as potential biomarkers for distinguishing sausages with different air-drying times. Six key flavor components were screened through OAV. Ethyl 2-methylbutyrate, ethyl hexanoate, and ethyl butyrate were common key flavor components in three groups of sausages, and their content significantly increased during air-drying. Conclusion: Adding sauce-flavor Baijiu can increase the types and contents of volatile flavor compounds in Cantonese sausage and promote the formation of new flavor compounds.