Tremella fuciformis from Guyuan

Tremella fuciformis from Guyuan

　　Ningxia specialty — Tremella fuciformis from Guyuan is a local product of Yinchuan, Ningxia. It generally takes about 18 days for the primordium to differentiate into the fruiting body. Compared to other edible fungi, Tremella is particularly delicate. A slight misstep in management can allow pests and diseases to take advantage, threatening production or even leading to the complete failure of a batch. Therefore, in the cultivation of Tremella, special attention must be paid to the prevention and control of pests and diseases. The spawn run and fruiting stages can take place in the same room, and residential buildings may be used. Those who are more professional and have the means can build specialized spawn-running and growing rooms. These should be located at a slightly higher elevation, near a water source for easy cleaning, with good ventilation through doors and windows, adequate lighting, and may also use simple sheds built in courtyards.

　　 Nutritional Benefits of the Specialty:

　　 1. Tremella can enhance the liver’s detoxification ability and has a liver-protecting effect; it also shows certain therapeutic effects on chronic bronchitis and pulmonary heart disease in the elderly.

　　 2. Rich in vitamin D, Tremella helps prevent calcium loss and is very beneficial for growth and development; it is also abundant in trace elements such as selenium, which can strengthen the body’s immunity against tumors.

　　 3. Tremella contains rich natural plant-based gelatin and, due to its yin-nourishing properties, long-term consumption can moisturize the skin and help remove facial freckles and age spots.

　　 4. The active components in Tremella, such as acidic polysaccharides, can enhance the body’s immunity, activate lymphocytes, strengthen the phagocytic ability of white blood cells, and stimulate bone marrow hematopoiesis. Tremella polysaccharides also have anti-tumor properties.

　　 5. The dietary fiber in Tremella aids gastrointestinal motility and reduces fat absorption, thus contributing to weight loss.

　　 6. Tremella can also enhance the tolerance of cancer patients to radiotherapy and chemotherapy.

　　 Specialty Effects: Tremella has the effects of invigorating vitality, nourishing kidneys, moistening intestines, benefiting the stomach, replenishing qi, harmonizing blood, strengthening the heart, building up the body, nourishing the brain, refreshing the mind, beautifying, smoothing the skin, and prolonging life. It is used to treat symptoms such as cough due to lung heat, dry cough caused by lung dryness, irregular menstruation in women, gastritis, and constipation. It enhances the liver’s detoxification ability and protects liver function. Not only does it boost the body’s immune resistance to tumors, but it also increases the tolerance of cancer patients to radiotherapy and chemotherapy. It is also a high-quality tonic, characterized by being nourishing without being greasy. It has the benefits of invigorating the spleen and appetite, replenishing qi and cleansing the intestines, promoting sleep and improving digestion, nourishing the brain, nourishing yin and clearing heat, and moistening dryness. It is an excellent supplement for patients with yin deficiency and excess internal heat who cannot tolerate warm tonics like ginseng or deer antler. Rich in natural gelatin and due to its yin-nourishing properties, long-term consumption of Tremella moisturizes the skin and helps eliminate facial freckles and age spots. As a diet food containing dietary fiber, Tremella aids gastrointestinal movement and reduces fat absorption.

　　 Specialty Identification:

　　 Visual Inspection

　　 First Grade: The fungus petals are bright white with only a slight yellow tint, glossy, large and light with a loose texture, thick and tender flesh that is tough yet elastic. The base is free of fungal stems, black spots, or impurities. When soaked, dried Tremella can expand more than 15 times its original size.

　　 Second Grade: The fungus petals are white with a slight beige tint, large but loosely structured, glossy, with relatively thick and elastic flesh. Small petals should not exceed 10%–15%. The base may have slight fungal stems. When soaked, expansion rate is above 12 times.

　　 Third Grade: The fungus petals are white with a beige tint, intact with no impurities, slightly thinner flesh, small petals not exceeding 20%–25%, base may have slight fungal stems or no hardened chunks. When soaked, expansion rate is above 10 times.

　　 Fourth Grade: The fungus petals are beige or slightly yellow, with slight spots, varying sizes but still intact, thinner flesh, base with fungal stems, slight hardened chunks. When soaked, expansion rate should be no less than 8 times.

　　 Substandard: The fungus petals are yellow or scorched yellow, not bright, varying shapes, hardened and not loose, unclean base with even black spots or water-stained patches, presence of rotten fungus or impurities, low expansion rate. Although edible, before eating, hardened chunks, rotten fungus, and impurities should be removed, and the fungus thoroughly rinsed with clean water to eliminate odors. Then soak and prepare for cooking. Due to poor quality, it often tastes hard and unpleasant, does not thicken soup well, and has an inferior flavor.

　　 Smell

　　 High-quality fresh Tremella should be free from sour, foul, or other off smells. Older, stored Tremella not only gradually turns more yellow but may also develop sour or other unpleasant odors due to protein and fat denaturation. If Tremella has a musty smell, it indicates it has been damp and moldy. Mildly moldy Tremella can be air-dried and the moldy parts removed before consumption; severely moldy and spoiled Tremella should not be eaten. A burnt smell in Tremella is usually caused by over-drying during processing, and although it's still edible, its quality and flavor are compromised.

　　 Taste

　　 Some people think that the whiter the Tremella, the better its quality — but this can often lead to being deceived. Tremella can be bleached with sulfur fumes to remove the yellow color, making it appear whiter. However, after being stored for around 10–20 days and exposed to air, it will oxidize and revert to its original yellow color. Pure Tremella should have no taste. When selecting, try a small amount: if it stings or feels spicy on the tongue, it likely indicates the Tremella has been faked with sulfur treatment.