Liangping sweet tea is dense fruit tea. ) Rena belongs to Quercus of Fagaceae. Folk use leaves to soak in water as tea, which has obvious sweetness, so it is called "sweet tea".
Polypodiaceae is a small evergreen tree, about 5~8 meters high, growing in warm and humid forests of 400~800 meters, often mixed with bamboo and pine trees, which is resistant to shade and acid soil and short sunshine.
The wild sweet tea in liangping county was discovered in the national agricultural regionalization survey of 198 1. It is distributed in 0/6 townships and 30 villages in the county/Kloc-0, scattered in 80,000 mu of pine forests and bamboo forests, relatively concentrated in Zhushan, Longsheng, Yuan Yi, Xinsheng, Ping Jin, Lifang and other townships in Yuemingshan District, and also distributed in Panlong, Hexing and Tiemen in Dongshan District. Because wild sweet tea was discovered on a large scale in Liangping, liangping county can be regarded as the origin of wild sweet tea. That is, liangping county is the most suitable area for the growth of wild sweet tea, and the sweet tea produced in liangping county is "authentic". Liangping county has unique natural conditions for developing wild sweet tea industry.
There are 8 families and 9 species 1 1 subspecies of sweet tea in China, but only Liangping sweet tea and Guangxi sweet tea can be developed as industries, and Guangxi sweet tea is a vine of Rubus in Rosaceae.
-4-
It is found that the efficacy of Liangping sweet tea is much higher than that of Guangxi sweet tea.
Second, it has unique efficacy, which has the triple efficacy of "medicine, sugar and tea" and has been certified by the US FDA.
1, efficacy
According to Records of Traditional Chinese Medicine, Records of Chinese Herbal Medicine in Sichuan and Records of Chinese Herbal Medicine in Wanxian, the leaves, roots and fruits of sweet tea (Polygonum multiflorum Thunb.) can be used as medicine, which has the functions of nourishing yin and tonifying kidney, lowering blood pressure and resisting allergy, clearing away heat and toxic materials, and treating sores and dysentery, and is a natural Chinese herbal medicine plant. The Third People's Hospital of Huaihua City, Hunan Province has obvious effect in treating diabetes. The cooperative research between Chinese Academy of Preventive Medicine and Hebei Medical University shows that the effective rate of blood pressure reduction is 90.5% and the effective rate is 80.6%. The sweet tea products developed by it have obtained the certificate of "health food" issued by the Ministry of Health.
Studies show that sweet tea contains 4. 1% bioflavonoids, which is recognized by the world medical community as the best product to prevent and treat cardiovascular and cerebrovascular diseases and cancer. At the same time, the polyphenols contained in sweet tea are the most ideal natural antioxidants at present, which have anti-fatigue and anti-aging effects.
The research by the Department of Pharmacy of Mie University in Japan shows that besides the above functions, it also has the function of preventing and treating pollen allergy, thus alleviating the pain of pollen allergy patients in the largest festival in Japan-Sakura Festival. Japanese pollen allergy has changed from taking medicine by injection to drinking sweet tea. This is the main reason why Liangping sweet tea sells well in Japan.
2. Sugar efficiency
Many scientists have studied the sweet components in sweet tea (Lithocarpus polystachyus) and have gone deep into the molecular level. 65438-0989 Sichuan Institute of Traditional Chinese Medicine cooperated with School of Pharmacy, West China University of Medical Sciences to isolate three compounds with strong sweetness from sweet tea, and identified them as phloridzin, clover glycoside and 3- hydroxydermoside by chemical reaction, ultraviolet spectrum, infrared spectrum, 1H NMR spectrum, 1C NMR spectrum and mass spectrometry. 65438-0992 South China Institute of Botany, China Academy of Sciences cooperated with Japanese Fanshan Chemical Co., Ltd. to identify the molecular structures of two natural sweetener crystals obtained by chemical purification for many times. The results show that the two crystals contain the same aglycone-dihydrochalcone. The content of dihydrochalcone is 12.6% for the first time. 1999 southwest agricultural university further confirmed that the sweet crystal separated in the experiment was dihydrochalcone by NMR spectrum. The sweetness of dihydrochalcone is 300 times that of sucrose, and the calorie is only one third of that of sucrose, and it has no bitterness and toxicity. Therefore, sweet tea is an ideal resource of natural sweeteners sought by various countries at present.
3. Tea effect
-5-
Because sweet tea also contains tea polyphenols, selenium, germanium and other substances, it also has the effect of ordinary green tea. It is a health tea with cancer prevention, anticancer, cardiovascular and cerebrovascular diseases prevention and pollen allergy prevention functions.
Third, the production technology is mature.
In the early 1980s, liangping county began to conduct scientific research on sweet tea, observe its biological characteristics, explore its processing and utilization, and entrusted Sichuan Institute of Traditional Chinese Medicine and Sichuan Agricultural University to detect its biochemical components, and initially grasped the growth law of sweet tea, the requirements for its growth environment, the primary processing method of sweet tea and its health care function to human body. The research results won the third prize of 1982 Sichuan Scientific and Technological Achievements. It has made a good technical reserve for the further development and utilization of sweet tea.
After years of experiments, the forestry department of Liangping has mastered the cutting propagation method and artificial transplanting technology of wild sweet tea. In 2003, Chongqing Panlong Tea Co., Ltd. also mastered the tissue culture and seedling raising technology of sweet tea, which laid the foundation for large-scale artificial planting.
Fourth, the market prospect is broad.
The former liangping county Foreign Trade Company started the processing experiment of sweet tea products from 1985, and successfully developed gift sweet tea and bagged sweet tea. Gift sweet tea has become one of the "four musts" in liangping county (Liangping pomelo, Liangping bamboo curtain, Liangping dried bean curd and Liangping sweet tea), and its reputation is far-reaching. 1995 bagged sweet tea went on the market in batches and was exclusively sold by Japanese merchants. 1996 was well received by customers and experts at the National Exhibition of Ten Years of Comprehensive Agricultural Development and 1997 Beijing International Tea Exhibition. Liangping Foreign Trade Company produces about 5 tons of sweet tea every year, achieving an output value of 1 10,000 yuan and earning foreign exchange through export of 1 10,000 US dollars. Over the years, Liangping Sweet Tea 100% has been exported, mainly to Japan, the United States and Western Europe. Long-term demand exceeds supply, and the market gap is very large.
Although the development of Liangping sweet tea has achieved results, from the perspective of modern economics, the product is still in the primary stage, with low added value and small scale, and rare resources have not been fully utilized. In 2003, Chongqing Panlong Tea Co., Ltd., based on the disintegration of the state-owned liangping county Foreign Trade Company, used the original development foundation to explore the possible expansion areas of sweet tea, aiming at the comprehensive utilization of high added value. At present, the demonstration sweet tea base of 1000 mu has been built according to the company's plan (finally, 10000 mu sweet tea base); Tissue culture of seedlings has been completed; It is planned to acquire 30 mu of land to build a processing plant; Invite experts from Chongqing Tea Research Institute for technical guidance. Through more flexible management mechanism of private enterprises, the company will closely connect the market with enterprises, realize the integration of agriculture, industry and commerce with the company as the leader as soon as possible, make the industry of Liangping sweet tea "bigger" and the brand "famous" and become the "only" in the west, and strive to achieve the goal of comprehensive economic benefits of 654.38+0.34 billion yuan within five years.