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The History of Yibin’s Sichuan Black Tea: VII. The Establishment of the Yibin Tea Factory
Production of Sichuan black tea began in Yibin during the spring and summer of 1951. However, at that time, only rough black tea could be produced locally, which then had to be transported to the Chongqing Tea Factory for refinement before being exported to the Soviet Union and Eastern Europe, increasing costs. Therefore, in March 1952, the Southwest Regional Company of the China Tea Corporation dispatched 36 technical staff and workers from Chongqing to Yibin to establish a refined tea factory. The site chosen for the Yibin Tea Factory was located at the Nan'an Shangdu Port, facilitating the loading of tea onto ships for freight. During construction, 20 acres of land were allocated by the Yibin Special Administrative Region, along with the purchase of one warehouse from the Bao Yuantong Company and one building from the Dian Dong Company (a Yunnan-based business that opened a branch in Yibin during the Republican era and later became state-owned). These facilities were renovated to serve as workshops, warehouses, offices, and temporary dormitories. Initially, the Southwest Regional Company of the China Tea Corporation invested 66,500 yuan, and due to limited funds, bamboo fences were used as walls around the factory. Before the official sign… -
“Tracing the Ancient Tea Ship Route: A Saga of Prosperity and Decline over Centuries (Part I)”
Along with the rise and fall of Liubao tea industry, the ancient tea ship route has gone through phases of formation, prosperity, dormancy, revival, and decline, leaving a splendid chapter in China's tea transportation history. The ancient route is vast and time has passed slowly. The development of the Liubao tea industry has undergone changes over several hundred years, and the tea ship route has also gone through a long journey from its formation to prosperity, dormancy, revival, and decline. Today, the Liubao tea industry is experiencing a comprehensive revival, but the ancient tea ship route mostly remains as traces of the past. However, there is no doubt that in the course of history, this ancient route, which coexisted with Liubao tea, has written a unique and splendid chapter in China's tea transportation history. The name "Tea Pavilion" can be seen on a map of Cangwu from the 32nd year of the Kangxi era (1693) of the Qing dynasty. 1. The "Annals of Cangwu County" compiled during the Tongzhi era of the Qing dynasty contains records about Liubao tea. 2. On the attached map of Cangwu County in the "Annals of Cangwu County" compiled during the Tongzhi era of the… -
Detection Technology: Determination of Ellagic Acid Content in Pu’er Ripened Tea by High-Performance Liquid Chromatography
Ellagic acid (EA) is a biologically active phenolic compound widely present in plant tissues such as fruits and nuts, with its structure shown in Figure 1. It is a dimeric derivative of gallic acid. In nature, ellagic acid mainly exists in condensed forms, such as ellagitannins. Ellagic acid is essentially non-toxic and has a significant inhibitory effect on chemically-induced carcinogenesis and various types of cancers, including colon cancer, liver cancer, lung cancer, prostate cancer, breast cancer, lymphoma, and others. Additionally, ellagic acid also exhibits antioxidant, anti-inflammatory, antibacterial, melanin inhibition, and leukemia improvement effects. Due to its excellent biological activity, ellagic acid is widely used in health foods, medicine, pharmaceuticals, cosmetics, and other fields. Studies have shown that tea is an important dietary source of ellagitannins and ellagic acid, which are converted from ellagitannins through human gut microbiota metabolism. ▲ Human Metabolic Pathway Pu'er ripened tea, a famous Yunnan tea, is a unique microbial-fermented tea made from large-leaf sun-dried green tea. The essence of solid-state fermentation in Pu'er ripened tea is primarily the result of moist heat, enzymatic actions, and microbial activities. During the fermentation process of large-leaf green teas, microbial metabolism releases a large amount of heat, and the enzymes…
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