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Showing posts with the label 病毒感染,儿茶素,饮料,

Great Green Tea: Half from West Lake, Half from Thousand Island Lake

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 When people think of China’s finest green tea, they picture West Lake in Hangzhou—the villages of Longjing and Meijiawu, Emperor Qianlong’s legendary “Eighteen Imperial Tea Bushes,” and a cup of flat, jade-green leaves releasing delicate chestnut notes. And they’re not wrong. West Lake Longjing is indeed one of China’s most iconic teas. But few know that 150 kilometers southwest of Hangzhou, amid the emerald waters of Thousand Island Lake, lies another chapter of tea history—one far older, equally profound, and unjustly overlooked. Here, during the Tang Dynasty (618–907 CE), tribute tea known as Jiukeng Maojian was sent to the imperial court. Lu Yu, the Sage of Tea, recorded its origin in his Classic of Tea (Cha Jing). Centuries later, seeds from this very land would travel to Japan, Kenya, and beyond, shaping green tea across continents. Today, protected as a Class-I national water source, this region bans chemical pesticides entirely—yielding tea of unmatched purity and freshnes...

Qiandao Lake Silver Needle Tea

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This Qiandao Lake Silver Needle Tea is produced in Chun'an County, not Jiande, but a local specialty tea in Chun'an, which is a rare treasure among teas.  

Another miracle of green tea! Jinan University researchers find green tea has anti-coronavirus properties, including mutants

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The production and consumption of tea has a history of more than 4,000 years. At present, more than 2 billion cups of tea are consumed every day in the world, which is second only to water in terms of global consumption. Previously published research has shown that regular consumption of green tea and coffee has health benefits because these beverages contain a variety of bioactive compounds. However, little is known about green tea's antiviral properties. On March 17, 2021, a study by researchers at Jinan University on the bioRxiv preprint platform reports that green tea has antiviral activity, adding to its long-term health benefits. In the new study, epigallocatechin gallate (EGCG), one of the components of green tea, prevented severe SARS-CoV-2 from binding to the human angiotensin-converting enzyme 2 (ACE2) receptor, thereby preventing infection in humans lung cells, and inhibitory effects were also observed in SARS-CoV-2 variants. The main active ingredients in green tea are ...