The difference between oranges with 25.3 degrees and 17.5 degrees:

1. Name meaning

25.3° orange is Gannan navel orange, Gannan navel orange, Ganzhou City, Jiangxi Province Specialties, national geographical indication products. The annual output of navel oranges in southern Gansu reaches one million tons. The place of origin, Ganzhou City, Jiangxi Province, has become the world's largest navel orange planting area, the third largest navel orange production area in the world, and the largest navel orange producing area in the country.

Nongfu Spring 17.5° oranges are navel orange varieties - Newhel navel oranges, which have been carefully cultivated for many years in a suitable environment. They have thin skin, large size, full flesh, sufficient moisture, and less pomace. The sugar-acid ratio of a single orange is as low as around 12, and as high as around 20, with the average being around 17.5. It is rich in various fruit acids such as citric acid, malic acid, and succinic acid, which are beneficial to human health.

2. Product Features

Gannan navel oranges are large and square-shaped, generally 250 grams each. They are bright orange-red, smooth and beautiful, with an edible rate of 85% and a reddish color. The color is slightly darker than oranges from other origins; the peel is smooth and delicate; the fruit shape is often oval. Gannan navel oranges contain more than 55% juice, more than 14% soluble solids content, up to 16%, 10.5%~12% sugar, 0.8~0.9% acid, and a solid-acid ratio of 15~17:1. Compared with American navel oranges, the soluble solids content is 1 to 2 percentage points higher, and compared with Japanese navel oranges, the soluble solids content is 1 to 3 percentage points higher.

Nongfu Spring 17.5° orange, a navel orange with an average golden sugar-to-acid ratio of 17.5. Taking the USDA grading standard as the acceptance standard, the sugar-acid ratio of 17.5° oranges is at least 12.7, and can reach as high as about 20, with an average value of about 17.5. A little sour sweetness is the delicious taste of oranges.

3. Nutritional value

Gannan navel oranges are rich in various nutrients necessary for the human body. According to testing, every 100ml of fresh navel orange juice contains: 11~15% soluble solids , sugar 11.0~13.0g, citric acid 0.80~0.95g, calories 207J, protein 0.9g, fat 0.2g, amino acids 203.9mg, vitamin A0.127mg, vitamin B10.08mg, vitamin B20.03mg, vitamin C55~75mg, and Rich in calcium, iron, phosphorus, magnesium, potassium, sodium and other elements. It also contains vitamin P, carotene, carotenoids, (R)-lemon oil, coumarin, flavonoids, limonoid analogs, glyceroglycolipids, acridone, pectin and other anti-cancer substances.

Nongfu Spring 17.5° orange is rich in citric acid, malic acid, succinic acid and other fruit acids, which are beneficial to human health.

Extended information

The development history of navel oranges in southern Jiangxi

More than 1,500 years ago, Liu Jingye of the Southern and Northern Dynasties recorded in "Yiyuan": "There is Xishi Mountain in Nankang. There are tangerines, oranges, and pomeloes. "Nankang is the area around Ganzhou today. By the Northern Song Dynasty, fruit trees such as tangerines, tangerines, oranges, and pomeloes had grown into forests. During the Qing Dynasty, Gannan navel oranges were one of the fruits presented as tribute to the imperial court by officials below, and they were a favorite of Emperor Yongzheng.

In 1971, Xinfeng County Anxi Horticulture Farm introduced 156 "Washington Navel Oranges" from Shaoyang, Hunan. It began to bear fruit in 1974 and participated in the "Canton Fair" in March 1975. It was highly praised by the foreign trade community and the Hong Kong business community. The trial sales price in Hong Kong was HK$36 per kilogram, which was higher than that of navel oranges produced in the United States.

In the 1980s, the Comprehensive Investigation Team of the Southern Mountainous Areas of the Chinese Academy of Sciences came to the conclusion after a year of fieldwork in southern Jiangxi: "Southern Gansu has a unique climate for the development of citrus and should become an important base for the production of citrus commodities in my country. "Hu Yaobang, then general secretary of the Central Committee of the Communist Party of China, specifically issued instructions for the development of the citrus industry in southern Jiangxi. Ganzhou successfully introduced eight navel orange varieties including Newhall from Huazhong Agricultural University for trial planting.

In November 1990, Ganzhou Science and Technology Department organized experts to conduct acceptance inspection and achievement appraisal of the project. The on-site measurement yield reached 2964.18 kilograms per mu, which was the best result of similar research in China at that time.

On November 24-29, 2000, Wang Xiaobing, deputy director of the Economic and Commercial Affairs Division of the Planting Industry Management Department of the Ministry of Agriculture, Professor Sun Zhonghai, director of the Citrus Research Institute of Huazhong Agricultural University, and Professor Sun Zhonghai, director of the Citrus Research Institute of the Chinese Academy of Agricultural Sciences After deputy director Deng Lie came to Gannan to inspect the production of navel oranges, he put forward the inspection report "Gannan: China's hope for citrus after joining the WTO".

?International Navel Orange Festival in Ganzhou City, Jiangxi Province On February 12, 2003, the Ministry of Agriculture officially released the "Regional Layout Plan for Advantageous Agricultural Products (2003-2007)", including southern Gansu as the dominant industrial zone in southern Hunan and northern Guangxi, and will become my country's An important fresh navel orange production base.

In 2003, it was approved as a protected geographical indication product in China.

The 4th China Ganzhou International Navel Orange Festival was held in Ganzhou from November 28 to December 2, 2012. It was hosted by the Ministry of Agriculture and the Jiangxi Provincial People's Government, and hosted by the Ganzhou Municipal People's Government and the Jiangxi Provincial Department of Agriculture. , the theme is "Meet the World in Orange Township, Promote the Revitalization of the Soviet Area in Southern Jiangxi".

On the morning of November 29, 2012, the "Gannan Navel Orange" China Famous Trademark Awarding Ceremony was held at the Golden Plaza in Ganzhou City. The "Gannan Navel Orange" geographical indication trademark was approved and registered by the Trademark Office of the State Administration for Industry and Commerce in October 2009, becoming a public brand in the Ganzhou navel orange industry.

In 2017, Gannan navel oranges were included in the China-EU "10100" mutual recognition and protection list.

Reference material: Baidu Encyclopedia - Gannan Navel Orange

Reference material: Baidu Encyclopedia - Nongfu Spring 17.5° Orange