期刊论文

中文

现代食品科技

1673-9078

2020

36

9

260-269 and 299

10.13982/j.mfst.1673-9078.2020.9.0178

国家自然科学基金项目(31600560) 广东省农村科技领域项目(2017A020208020) 国家茶叶产业技术体系项目(CARS1909B)。

本校为第一机构

本研究以不同贮藏年份康砖茶为试验材料,测定其主要的滋味成分和香气成分,初步明晰贮藏过程中滋味成分和香气成分的变化规律,通过化学计量学方法,客观地鉴别不同贮藏年份康砖茶的滋味特征和香气轮廓.结果 表明:康砖茶滋味和香气对贮藏时间有明显的响应.茶多酚、儿茶素组分、没食子酸、咖啡碱、可溶性总糖和和葡萄糖含量在贮藏期1～10年间降低,在之后的10～30年间增加.茶褐素和麦芽糖含量在贮藏期1～30年间显著增加(p＜0.05).构成香气轮廓的特征挥发性成分数量先减少后增加,酯类和杂环类逐渐取代不饱和醛类、醇类和酚类成为康砖茶的重要赋香成分.基于贮藏期的康砖茶滋味特征和香气轮廓的变化规律...

To explore the change patterns of tasty and volatile components during storage, chemical components and volatiles were determined for different aged Kang brick teas selected as the experimental materials. The different aged Kang brick teas were differentiated based on chemical components and volatiles combined with chemometrics algorithms. Results showed that the content of components including tea polyphenols, catechins, gallic acid, caffeine, total soluble sugar and glucose, decreased during the first 10-year storage, but increased during the...