Gutian Tremella is a protected geographical indication product. Gutian Tremella is a geographical indication certification trademark.
As a traditional health food, Tremella fuciformis contains 7 essential amino acids for the human body. Its high-protein and low-fat nutritional structure is in line with the consumption trend of modern people. At present, more than 80% of the Tremella fuciformis on the domestic and foreign markets are produced in Gutian County, Fujian Province, the "Hometown of Edible Fungi". In 1998, the output of Gutian edible fungi reached 18,000 tons (dry product), with a total output value of nearly 420 million yuan, of which 8,000 tons were Tremella fuciformis. .
The development of the edible fungi industry in Gutian County has improved people’s food structure and is a major contribution to mankind. However, in order to whiten and brittle Tremella fuciformis and extend its shelf life, in the early 1990s, some processing households carried out sulfur fumigation on Tremella fuciformis sporadically, initially on roof platforms, and later gradually transferred to farmers' own fields or rented fields. The sulfur dioxide and other gases produced during the fumigation process will cause certain pollution to the surrounding air and have a certain impact on the production and life of the surrounding people. On December 26, 1998, CCTV's "Focus Interview" column reported on the environmental pollution caused by the fumigation and whitening processing of Tremella fuciformis in Gutian. It caused a strong response in the society. At the same time, it attracted the attention of provincial and local leaders and dispatched a special investigation team. , went to Gutian County to conduct a special investigation. The Gutian County Party Committee and County Government took timely measures to make serious modifications to protect the healthy development of the edible fungi industry and comprehensively ban the sulfur fumigation process throughout the county.
In order to fully understand the quality status of Gutian Tremella fuciformis, the Technical Supervision Bureau of Fujian Province and Ningde District sent personnel to take samples from the Gutian Tremella fuciformis smoked sulfur processing plant, Gutian Market, and Fuzhou Market on December 31, 1998 and sent them to the provincial center. Inspection institutes and provincial food inspection stations conduct inspections. In order to safeguard the interests of consumers across the country, the county government entrusted Fujian, Shandong, Shanghai, Beijing and other provincial and municipal technical supervision bureaus to conduct sampling inspections of Gutian Tremella sold in local markets in March 1999. Sampling conditions in various places: Fujian Provincial Central Inspection Institute inspected 6 batches, Fujian Provincial Food Inspection Station inspected 10 batches, Shanghai City sampled 6 batches from the local market, Shandong Province sampled 9 batches from the local market, and Beijing City sampled 9 batches from the local market Seven batches were randomly inspected. According to the inspection results of the technical supervision and inspection agency, the physical and chemical hygienic quality indicators of Gutian Tremella fuciformis all met the national standard GB7096-1996 "Hygienic Standard for Edible Fungi".
On June 10, 1999, the Fujian Provincial Technical Supervision Bureau and the Gutian County Party Committee and County Government jointly held a briefing meeting at the Media Center in Beijing and formally informed the press of the inspection results. Gutian County stated that it should take the supervision of news and public opinion as an opportunity to increase investment in technical testing and comprehensively standardize the production and processing of edible fungi. In order to seek new processing techniques, Gutian County has invested more than 500,000 yuan, entrusting and hiring more than 10 scientific research institutions in Beijing, Hainan, Tianjin, Jiangxi and other provinces and cities to conduct scientific research and experiments on extending the shelf life of Tremella fuciformis and whitening technology, and has Initial results have been achieved. The recently cultivated "9901" new strain of Tremella fuciformis has a snow-white color and excellent quality, and has been widely promoted throughout the county. The beautiful silver flower of white fungus will bloom more beautifully in Gutian and become a healthy food that benefits all mankind.