Panxian Walnuts

Panxian Walnuts

Panxian Walnuts are a geographical indication agricultural product.

　　 Walnut oil is delicious and fragrant, rich in saturated fatty acids, easy to digest with high absorption rates. It is a premium edible oil and also an important industrial oil, serving as a key ingredient in artistic oil painting pigments, paint formulations, and as a substitute for machine oil. Walnut trees are important timber for national defense. The outer husk and bark of walnuts can be used to extract tannins, the shells can be processed into activated carbon, and the oil cake left after extracting walnut kernel oil can be used as animal feed. Walnuts have a wide range of uses: the walnut kernel is a precious fruit, extremely nutritious, containing iron, phosphorus, calcium, fat, protein, vitamins A and B, riboflavin, carotene, niacin, and thiamine. The walnut kernel is a tonic medicine that “builds qi and nourishes blood, moistens dryness, resolves phlegm, warms the lungs, and lubricates the intestines,” and it is also a high-quality ingredient for making sweets, pastries, and candies. (Liupanshui)

　　Panxian Walnuts

　　Geographic Scope

　　The protected area for the Panxian Walnuts geographical indication agricultural product includes 37 towns and townships: Hongguo Town, Huopu Town, Pingguan Town, Lemin Town, Xiangshui Town, Dashan Town, Zhongyi Township, Baotian Town, Putian Township, Xinmin Township, Minzhu Town, Zhudong Township, Laochang Town, Mayi Town, Shuitang Town, Shiqiao Town, Banqiao Town, Chengguan Town, Xichong Town, Liuguan Town, Lianghe Township, Panjiang Town, Duanjiang Town, Baiguo Town, Saji Town, Pingdi Township, Sig'e Township, Songhe Township, Pugu Township, Jichangping Township, Huashi Township, Yangchang Township, Jiuying Township, Sig'e Township, Yingwu Township, Machang Township, and Niyihe Township. It lies between latitude 25°19′36″ to 26°17′36″ and longitude 104°17′46″ to 104°57′46″. The county is bordered by Pu'an to the east, Xingyi to the south, Fuyuan and Xuanwei of Yunnan Province to the west, and Shuicheng to the north. The entire region stretches 107 km from north to south and 66 km from east to west, covering a total area of 4,056 square kilometers. The protected area spans 14,000 hectares, with an annual yield of 3,000 tons.

　　Product Quality Characteristics

　　(1) External Sensory Characteristics: Panxian Walnuts are uniformly shaped, with an average transverse diameter of 35 mm, an average fruit weight of 48 g, and a maximum single fruit weight of 86 g. The shell is thin, with a thickness of 1–1.5 cm, easily cracked by hand. The kernels are plump, with a high kernel rate (reaching 65–72%), light-colored, low astringency, and aromatic flavor. (2) Internal Quality Indicators: According to analysis by the Guizhou Provincial Agricultural Product Quality and Safety Testing Center, Panxian Walnuts are highly nutritious, with approximately 60.2% crude fat, 8.5% protein, over 8% carbohydrates, and are rich in various amino acids and vitamins, including glutamic acid (1.3), alanine (0.7), lysine (0.8), and leucine (1.0). (3) Panxian Walnuts are produced strictly in accordance with pollution-free agricultural product production standards and relevant regulations.