Lin Yunzhi, Meng Qing, Miao Yiwen, Chen Linmu, Huang Cuixin, Kun Jirui, Luo Zhengfei, Tong Huarong
College of Food Science, Southwest University, Chongqing, China.
College of Biotechnology and Engineering, West Yunnan University, Lincang, China.
J Sci Food Agric. 2025 Mar 30;105(5):2787-2799. doi: 10.1002/jsfa.14050. Epub 2024 Dec 5.
Broken black tea (BBT) is the most consumed black tea in the world. Laurie tea processor black tea (LTP-BT) is one of the most important categories of BBT. In this study, the fresh leaves of three tea plant cultivars including Golden Peony tea, Yunnandaye, and Fuding Dabai were blended to process LTP-BT using the simplex centroid design. Using gas chromatography-mass spectrometry and high-performance liquid chromatography, the differences in volatile and non-volatile components of LTP-BT under different formulations were analyzed.
A total of 88 volatile compounds were detected, among which 16 aroma compounds, including benzyl alcohol, linalool, and methyl salicylate, could be identified as key common aroma substances in BBT. Following evaluation of the model, Golden Peony 16.7%, Fuding Dabai 16.7%, and Yunnan Daye 67.8% were the best proportions in mixed fermentation of LTP-BT. The LTP-BT produced in this ratio had a high and lasting aroma, strong and mellow taste, and bright and red soup color.
Our study showed that mixed fermentation is feasible for the manufacturing process of LTP-BT, and the simplex centroid design would be a reliable guide for cultivar formulation, providing customers with an alterable flavor and consumption feature. © 2024 Society of Chemical Industry.
碎红茶（BBT）是全球消费量最大的红茶。劳瑞茶加工红茶（LTP - BT）是BBT最重要的类别之一。本研究采用单纯形重心设计，将包括金牡丹茶、云南大叶和福鼎大白在内的三个茶树品种的鲜叶混合加工成LTP - BT。利用气相色谱 - 质谱联用仪和高效液相色谱法，分析了不同配方下LTP - BT挥发性和非挥发性成分的差异。
共检测到88种挥发性化合物，其中包括苯甲醇、芳樟醇和水杨酸甲酯等16种香气化合物可被鉴定为BBT中的关键常见香气物质。通过对模型的评估，金牡丹16.7%、福鼎大白16.7%和云南大叶67.8%是LTP - BT混合发酵的最佳比例。按此比例生产的LTP - BT香气高长、滋味醇厚、汤色红亮。
我们的研究表明，混合发酵对于LTP - BT的制造过程是可行的，单纯形重心设计将为品种配方提供可靠指导，为消费者提供可改变的风味和消费特性。© 2024化学工业协会。
