Kushui Town, Yongdeng County, Lanzhou City is a famous "hometown of roses" in China. Bitter rose is famous at home and abroad for its charming fragrance. Every spring and summer, the flowers here are in full bloom and colorful, and the fragrance of roses is everywhere, attracting tourists who come here. Roses are widely used and have high economic value. Rose is an essential spice for making cakes and making wine, and rose oil is the main raw material for cigarettes, soaps, perfumes and high-grade cosmetics. Bitter roses are of good quality. When used to extract rose oil, the yield of essential oil can be comparable to that of Bulgaria, a world-famous rose producing area. The flowers and roots of roses can be used as medicine, which has the effects of dredging qi and blood, soothing the liver and relieving depression.
territorial scope
Yongdeng County is located in the middle of Gansu Province, in the northwest suburb of Lanzhou City, with east longitude 102 36' to 103 45' and north latitude 36 12' to 37 07'. The geographical indications of "Bitter Water Rose" are registered in 96 administrative villages in 12 towns, including Bitter Water Town, Hongcheng Town, Longquansi Town, Datong Town, Liu Shu Town, Bao Zhong Town, Shangchuan Town, Chengguan Town, Shuping Town, Heqiao Town, Liancheng Town and Vu Thang Post Town, with an area of 2,960 square kilometers and an annual planting area of 6,700 hectares.
Product quality characteristics
1. External sensory characteristics: Bitter rose belongs to Rosaceae, which is a natural hybrid of blunt-toothed rose and China traditional rose. It is a semi-double small rose, which belongs to Asian fragrance type and grows at an altitude of 1600-2400 meters. It is a rare plateau natural rose variety in the world. Bitter rose is an edible and medicinal variety, which is a typical representative of oriental fragrance. The bud of bitter rose is compact, the fresh bud weighs 0.85-0.95g, the receptacle is small and pot-shaped, the petals are tender and dark pink, the fragrance is unique and rich, the texture is silky, and the taste is sweet and slightly astringent, with a single flower 18-24 petals; The dry buds are full, the sepals are yellow-green, the buds are purple and fragrant. Bitter rose has high oil yield and is rich in selenium, which is the top grade of food, medicine and beauty. It is a good raw material for "Lanzhou Three Batteries" and various flower drinks and tea drinks. 2. Intrinsic quality characteristics: the content of volatile oil in bitter rose is between 0.02 ml/g and 0.05 ml/g, which is much higher than the highest content of 0.03 ml/g in other rose varieties; Total flavonoids (calculated by rutin) ranged from 0.33g/100g to 0.58g/100g, which was also much higher than the highest content of other roses (0.4g/ 100g). It has pharmacological effects on cardiovascular and cerebrovascular diseases, digestive system, metabolism, immune function, anti-oxidation, anti-aging and anti-tumor. 3. Safety requirements: The production environment of Bitter Water Rose strictly conforms to NY5360-20 10 "Environmental Conditions for Edible Flowers of Pollution-free Food"; The products of Bitter Water Rose are in strict accordance with NY/T2 140-20 12 green food instead of tea.
Specific mass
Kushui Town, Yongdeng County, Gansu Province is rich in roses. After more than 200 years of cultivation, it has formed a well-known brand of "Kushui Rose", which is characterized by many flowers and pure fragrance, so Kushui Town enjoys the reputation of "the first hometown of roses in China".
Cultural allusions
Bitter rose has been planted in Yongdeng county for more than 200 years. According to records, during the Daoguang period of the Qing Dynasty, a scholar from Wang Xing of Liyaogou (now Xingou Village) in Yongdeng returned from Xi 'an and planted some roses in his garden for viewing. Because it is very suitable for the local soil and climate, it grows vigorously, flourishes and smells rich, and is deeply loved by people. More and more people want to plant, so every household uses the method of dividing plants to plant. However, a few years later, roses were planted in front and back of the house and yard. Later, it developed to the ridge and canal bank, mainly for viewing, and then gradually expanded to the surrounding areas. Because the rose was first introduced in Bitter Water in Yongdeng County, it was planted in the area represented by Bitter Water for a long time. After people's continuous breeding, it finally formed a local variety, so it was customarily called "Bitter Water Rose".