State-of-the-art review of theabrownins: from preparation, structural characterization to health-promoting benefits

L Cheng, Y Wei, L Peng, K Wei, Z Liu… - Critical Reviews in Food …, 2023 - Taylor & Francis
As far as health benefit is concerned, dark tea is one of the best beverages in the world.
Theabrownins are the major ingredient contributing to the health benefits of dark tea and …

Theabrownin alleviates colorectal tumorigenesis in murine AOM/DSS model via PI3K/Akt/mTOR pathway suppression and gut microbiota modulation

HKM Leung, EKK Lo, H El-Nezami - Antioxidants, 2022 - mdpi.com
Colorectal cancer (CRC) is one of the most common and fatal cancers worldwide, yet
therapeutic options for CRC often exhibit strong side effects which cause patients' well-being …

Physicochemical properties and antibacterial mechanism of theabrownins prepared from different catechins catalyzed by polyphenol oxidase and peroxidase

XQ Chen, JY Liu, XJ Huang, YA Wei, RX Shao… - Journal of Integrative …, 2023 - Elsevier
Theabrownins (TBs) are the characteristic functional and quality components of dark teas
such as Pu'er tea and Chin-brick tea. TBs are a class of water-soluble brown polymers with …

Using surface-enhanced Raman spectroscopy combined with chemometrics for black tea quality assessment during its fermentation process

X Luo, M Gouda, AB Perumal, Z Huang, L Lin… - Sensors and Actuators B …, 2022 - Elsevier
Developing a reliable and convenient method for monitoring the quality of black tea during
fermentation could lead to a significant improvement in fermentation process. This work …

Physicochemical stability and antibacterial mechanism of theabrownins prepared from tea polyphenols catalyzed by polyphenol oxidase and peroxidase

X Chen, T Chen, J Liu, Y Wei, W Zhou - Food Science and Biotechnology, 2024 - Springer
Tea polyphenols were used as substrates and oxidized successively by polyphenol oxidase
and peroxidase to prepare theabrownins (TBs-dE). The conversion rate of catechins to TBs …

Theabrownins Produced via Chemical Oxidation of Tea Polyphenols Inhibit Human Lung Cancer Cells in vivo and in vitro by Suppressing the PI3K/AKT/mTOR …

Y Wang, Y Yuan, C Wang, B Wang, W Zou… - Frontiers in …, 2022 - frontiersin.org
During the fermentation of dark tea, theabrownins (TBs), carbohydrates, and other
substances get irreversibly complex. Recent research on the biological activity of TBs is not …

Formation, physicochemical properties, and biological activities of theabrownins

X Chen, Y Wang, Y Chen, J Dai, S Cheng, X Chen - Food Chemistry, 2024 - Elsevier
Theabrownins (TBs) are heterogeneous mixtures of water-soluble brown tea pigments, and
important constituents to evaluate the quality of dark tea. TBs have numerous hydroxyl and …

Licochalcone B induces DNA damage, cell cycle arrest, apoptosis, and enhances TRAIL sensitivity in hepatocellular carcinoma cells

Y Zhang, P Feng, H Wang, H Zhang, T Liang… - Chemico-Biological …, 2022 - Elsevier
Hepatocellular carcinoma (HCC) is a highly fatal disease recognized as a growing global
health crisis. Traditional Chinese herbal medicines have been used to treat patients with …

Distinguishable short-term effects of tea and water drinking on human saliva redox

X Meng, PH Chong, L Ke, P Zhang, L Li, B Song… - npj Science of …, 2024 - nature.com
Food consumption can alter the biochemistry and redox status of human saliva, and the
serving temperature of food may also play a role. The study aimed to explore the immediate …

Cross-cultivar prediction of quality indicators of tea based on VIS-NIR hyperspectral imaging

X Luo, C Sun, Y He, F Zhu, X Li - Industrial Crops and Products, 2023 - Elsevier
The rapid detection of quality indicators of fresh tea leaves is helpful to guide tea garden
management. Therefore, it is very important to develop a fast and reliable detection method …