Xichong Yellow-Core Sweet Potato

Xichong Yellow-Core Sweet Potato

The Xichong Yellow-Core Sweet Potato is a product with geographical indication for agricultural products.

　　The sweet potatoes in Xichong come in two varieties: those with red skin and yellow core, and those with yellow skin and red core. These red- or yellow-skinned, yellow- or red-cored sweet potatoes are native and specialty products of Xichong County. When used in cooking — whether steamed, boiled, or roasted — they have become beloved dishes on banquet tables and family dining tables alike. There’s also starch made from these sweet potatoes, which is used to make sweet potato jelly. Tossed with chopped green chili or drizzled with bright red chili-infused oil, the jelly has a long-lasting flavor that leaves a deep impression.

　　Geographical Scope

　　The protected production area for the Xichong Yellow-Core Sweet Potato, a product with geographical indication for agricultural products, covers the entire territory of Xichong County, Nanchong City. Specifically, it includes the following 44 towns and townships: Jincheng Town, Changlin Township, Lianchi Township, Hongqiao Township, Zhanshan Township, Taiping Town, Gulong Town, Jinquan Township, Xianlin Town, Huaguang Township, Dailin Township, Daquan Town, Jinyuan Township, Liqiao Township, Yixing Town, Zhongling Township, Xinian Township, Ziyang Township, Guanwen Town, Fu’an Township, Fengming Town, Guanfeng Township, Qingshi Town, Huaishu Town, Minglong Town, Qinglong Township, Shuangluo Township, Yihe Township, Guanyaxiang Township, Zhongnan Township, Shuangfeng Town, Dongdai Township, Gaoyuan Town, Tongde Township, Xianglong Township, Chelong Township, Shuangjiang Township, Renhe Town, Fenghe Township, Duofu Town, Dongtai Township, Fujun Township, Yongqing Township, and Jinshan Township. This area encompasses 603 administrative villages. The geographical coordinates are between 105°36'4" and 106°4'7" east longitude, and 30°52'4" and 31°15'7" north latitude, at an altitude ranging from 290 to 617 meters. The protected area spans 12,000 hectares, and the annual yield of Xichong Yellow-Core Sweet Potatoes is 20,000 tons.

　　Product Quality and Characteristic Features

　　(1) External Sensory Characteristics: Xichong Yellow-Core Sweet Potatoes are round in shape, with smooth skin, good form, red outer skin, and yellowish-red flesh. When cooked, the texture is soft and sweet, offering a pleasant taste. (2) Internal Quality Characteristics: The Xichong Yellow-Core Sweet Potato contains ≥12% soluble total sugar, high levels of β-carotene and vitamins, as well as appropriate amounts of crude fiber and selenium, all of which are highly beneficial to human health. (3) Quality and Safety Standards: Xichong Yellow-Core Sweet Potatoes comply with the standards of “Pollution-Free Food – Sweet Potato” (NY5304—2005) and “Fresh Consumed Sweet Potato” (DB51/T10552010).