Tongjiang Konjac

Last updated 2026-11-13 — Tongjiang Konjac is a traditional specialty of Tongjiang County and an authentic forest vegetable. Known for being pollution-free, high in nutrition, and highly productive, Tongjiang Konjac is a forest vegetable with great development potential today. It boasts eight unique characteristics: 1. Tongjiang Konjac is a perennial herbaceous plant. Its above-ground part consists of a single feather-like compound leaf that resembles an umbrella, with beautifully speckled petioles. It thrives in shade and can be cultivated as an ornamental houseplant. 2. Tongjiang Konjac is exceptionally high-yielding, with individual tubers weighing over 15 kg. It tolerates both high fertility and shade, allowing for dense planting and even layered pit cultivation, yielding over 5,000 kg per mu. 3. The utilization rate of Tongjiang Konjac can reach 100%. Its leaves serve as high-quality animal feed, while its petioles can be made into dried vegetables that taste better than bamboo shoots. The underground tubers have snow-white flesh and contain over 60% starch, making them suitable for processing into various popular health and beauty foods worldwide. 4. Tongjiang Konjac is of superior quality, with its starch having an expansion rate of up to 80–100 times, leading to high profits — 1 kg of konjac starch can produce 40 kg of konjac tofu. 5. Tongjiang Konjac can be consumed fresh or processed on a large scale into refined powder, widely used in food, medicine, chemical, and industrial applications, offering broad development prospects. 6. Tongjiang Konjac is used to make a variety of popular foods that are white in color, rich in nutrition, delicious, and pleasant in texture. 7. Scientific analysis shows that Tongjiang Konjac refined powder contains 64.78% glucomannan, 1.46% starch, 1.6% reducing sugar, 2.56% protein, 0.13% fat, 1.43% fiber, and 3.78% mineral elements. Its protein includes all seven essential amino acids for humans, as well as seven unsaturated fatty acids vital to the body, such as oleic acid, linoleic acid, and linolenic acid. Therefore, konjac-based foods are high in fiber and low in calories, acting as “cleansers” for the digestive tract. They help prevent hemorrhoids and colorectal cancer, effectively lower cholesterol and high blood pressure, and offer unique benefits for weight loss, skin care, and diabetes management. 8. Tongjiang Konjac is adaptable to a wide range of environments and highly resistant to disease. It can be cultivated in areas south of 26°N latitude and can survive outdoors in winter where temperatures do not fall below -5°C. Tongjiang Konjac products are popular exports to Japan, South Korea, Malaysia, Vietnam, Myanmar, as well as Taiwan, Hong Kong, Macau, and other Southeast Asian regions.