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调味红茶的多分析探索：挥发性化合物剖析、咖啡因含量及生物学效应

A Multi-Analytical Exploration of Flavored Black Teas: Profiling Volatile Compounds, Caffeine Content, and Biological Effects.

作者信息

Kırcı Damla, Zengin Gökhan, Karadağ Ayşe Esra, Baydar Rengin, Demirci Betül

机构信息

Department of Pharmacognosy, Faculty of Pharmacy Izmir Katip Çelebi University Izmir Türkiye.

Department of Biology, Faculty of Science Selcuk University Konya Türkiye.

出版信息

Food Sci Nutr. 2025 Jul 9;13(7):e70585. doi: 10.1002/fsn3.70585. eCollection 2025 Jul.

DOI:10.1002/fsn3.70585
PMID:40641566
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12241430/
Abstract

This study aims at investigating the phytochemistry and biological effects of three different flavored black teas from Sweden. Analyses were conducted using gas and liquid chromatography. The major volatile compounds of all the tea samples were found to be linalyl acetate and α-terpineol. HPLC results indicated caffeine levels of 1.08%, 1.46%, and 1.18% in samples Ht1, Ht2, and Ht3, respectively. Ht1 exhibited the highest antioxidant activity, particularly in DPPH and ABTS radical scavenging capacities (0.15 and 0.21 mgTE/g, respectively). Additionally, Ht1 also showed higher antioxidant activity than the other samples in both CUPRAC and FRAP tests. Metal chelation capacity was highest in Ht3, suggesting significant chelation potential due to nonphenolic components. Ht1 showed strong inhibitory activity against acetylcholinesterase (1.21 mg GALAE/g), butyrylcholinesterase (3.48 mg GALAE/g), and tyrosinase (1.47 mg KAE/g) enzymes. It highlights valuable insights into how different flavor additives may influence the health benefits of tea.

摘要

本研究旨在调查来自瑞典的三种不同风味红茶的植物化学特征和生物学效应。使用气相色谱和液相色谱进行分析。发现所有茶样的主要挥发性化合物为乙酸芳樟酯和α-松油醇。高效液相色谱结果表明，样品Ht1、Ht2和Ht3中的咖啡因含量分别为1.08%、1.46%和1.18%。Ht1表现出最高的抗氧化活性，尤其是在DPPH和ABTS自由基清除能力方面（分别为0.15和0.21 mgTE/g）。此外，在CUPRAC和FRAP测试中，Ht1的抗氧化活性也高于其他样品。Ht3的金属螯合能力最高，表明非酚类成分具有显著的螯合潜力。Ht1对乙酰胆碱酯酶（1.21 mg GALAE/g）、丁酰胆碱酯酶（3.48 mg GALAE/g）和酪氨酸酶（1.47 mg KAE/g）表现出较强的抑制活性。它突出了关于不同风味添加剂如何影响茶的健康益处的宝贵见解。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/6b264f5b4a3c/FSN3-13-e70585-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/dea2ad7e6b7c/FSN3-13-e70585-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/2e49dc0269b8/FSN3-13-e70585-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/fdb9969706c1/FSN3-13-e70585-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/cd53e3c3df13/FSN3-13-e70585-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/0102e510ec6c/FSN3-13-e70585-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/6b264f5b4a3c/FSN3-13-e70585-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/dea2ad7e6b7c/FSN3-13-e70585-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/2e49dc0269b8/FSN3-13-e70585-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/fdb9969706c1/FSN3-13-e70585-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/cd53e3c3df13/FSN3-13-e70585-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/0102e510ec6c/FSN3-13-e70585-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f715/12241430/6b264f5b4a3c/FSN3-13-e70585-g002.jpg

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