Background Tea trees originated in southwest China 60 million or 70 million years ago.
Written records show that Chinese ancestors had begun drinking tea over 3000 years ago …

Background The world is in the midst of the COVID-19 pandemic. In this comprehensive
review, we discuss the potential protective effects of (−)-epigallocatechin-3-gallate (EGCG) …

Tea, one of the most widely consumed beverages, is prepared from the leaves of the
Camellia sinensis. The promising health recompenses of tea have been linked to its different …

Background and aim A novel coronavirus, called the severe acute respiratory syndrome
coronavirus 2 (SARS-CoV-2) has been found to cause COVID-19 in humans and some …

Green tea is produced from Camellia sinensis (L.) buds and leaves that have not gone
through the oxidation and withering processes used to produce black and oolong teas. It …

Medicinal plants have been used since antiquity to cure illnesses and injuries. In the last few
decades, natural compounds extracted from plants have garnered the attention of scientists …

Polyphenols are active substances against various types of viral infections. Researchers
have characterized methods of how to isolate polyphenols without losing their potential to …

Background Fuzhuan brick tea (FBT) as a representative type of dark tea is one of the three
treasures of the ancient Silk Road in China together with Chinaware and Silk, and has …

The coronavirus disease 2019 (COVID-19) pandemic has had significant morbidity,
mortality, social and financial implications for the global population. Despite this knowledge …

Selenium (Se) is an essential trace element for humans and animals, and it plays an
important role in immune regulation and disease prevention. Tea is one of the top three …