氧化牛油对天然牛肉调味基料的赋香效果

以冷冻牛骨肉末为原料,采用热—压浸提、调控酶解、美拉德反应集成技术制备牛肉调味基料,研究脂肪适度氧化对牛肉调味基料的赋香效果。在美拉德反应阶段添加不同程度的氧化牛油,采用电子鼻、电子舌结合气—质联用仪分析牛肉调味基料的风味。结果表明:与酶氧化牛油相比,热氧化牛油对牛肉调味基料的特征香气贡献作用略大;氧化时间2h时,热氧化和酶氧化对体系特征牛肉香气贡献作用最大,其特征醛类物质含量分别占到总风味物质的5.57%和4.16%。

Effect of oxidized tallow on the flavor of natural beef flavor

Beef flavor were manufactured from minced beef-bone using the hot-pressure extraction, enzymatic hydrolysis and Maillard reaction control integration technology in this study. Fat moderate oxidation were used to further enhance their flavor. The different oxidized tallows were added during the Maillard reaction, and the oxidation degree of tallow were analyzed. Thereafter, the flavor of oxidized beef flavor was analyzed by electronic nose, electronic tongue and gas chromatography-mass spectrometry. The addition of oxidized tallow could increase the content of aroma compounds in oxidized beef flavor. When the oxidation time was 2 h, it would have the greatest contribution to the aroma of the characteristic beef, while the content of the characteristic aldehydes in the thermal oxidation and enzyme oxidation groups was 5.57% and 4.16% respectively.