Materia Medica: The stem is oblate and twisted, with a length of 20-35cm and a diameter of 0.2-20-35cm; The surface is brown, with several longitudinal edges and obvious nodes, and there are residual fibrous roots on the lower nodes; Fragile and easily broken.
Houttuynia cordata Thunb Long-term harvesting in summer and autumn, removing impurities and roots, washing, drying or fresh use. Houttuynia cordata Thunb is rich in nutrition, and contains many minerals such as protein, crude fat, soluble sugar, ash, dietary fiber, carotene, vitamin C, calcium, phosphorus, potassium, magnesium, copper, zinc and manganese. It has good edible value and is a good wild vegetable for people's health care and disease prevention.
Extended data:
The root of Houttuynia cordata Thunb is tender and crisp, slightly spicy and fishy, and it is the main edible part. Houttuynia cordata Thunb Can be eaten raw or cooked, cold salad, stew, porridge, soup, stir-fry, tea.
The cooking method of raw food is to cut Houttuynia cordata into sections, add salt to dehydrate, add cold dishes such as ginger, garlic, sesame oil, etc. (all kinds of cold dishes are traditional folk dishes), or choose another seasoning according to personal preference, which is characterized by retaining the original flavor, being fresh and crisp in the mouth and having a unique flavor.
There are many cooking methods for cooked food, such as scrambled eggs with Houttuynia cordata Thunb, soup with three fresh ingredients of Houttuynia cordata Thunb, shredded pork with Houttuynia cordata Thunb and stewed duck with ham. In addition, Houttuynia cordata is mixed with lettuce, bean sprouts and celery. It is fragrant and delicious, and can also treat bronchitis; Houttuynia cordata stew can make broth more delicious and cure cough; Houttuynia cordata boiled noodles have the function of clearing fire; Houttuynia cordata porridge can cure heat toxicity.
It should be noted that it is best not to eat Houttuynia cordata Thunb, spleen and stomach deficiency and cold.
A yellow oil in houttuynia cordata Thunb. It can inhibit a variety of microorganisms (especially yeasts and molds), and has obvious inhibitory effects on hemolytic streptococcus, staphylococcus aureus, influenza Bacillus, pneumococcus and carinii. It also has effects on Escherichia coli, Shigella dysenteriae and Salmonella typhi. The synthetic adduct of sodium bisulfite of decanoyl acetaldehyde is called synthetic houttuynia cordata Thunb.
References:
Baidu Encyclopedia-Houttuynia cordata
References:
People's Health Network-Houttuynia cordata, a popular potherb with the same origin of medicine and food.