Wasabi, also known as a famous vegetable, is a perennial herb of the genus Wasabi in Cruciferae, which originated from Japan. It is a vegetable and medicinal plant with high economic value, and it is an essential thing for Japanese-style meals. The ingredients contained in Wasabi can prevent tooth decay, and also have certain effects on preventing cancer, preventing blood clots and treating asthma. It can promote appetite, help digestion, help the stability of vitamin C in the intestine, have strong bactericidal power, kill cholera bacteria, prevent food poisoning and resist food mildew. Wasabi also has therapeutic effects such as sweating, diuresis, detoxification, clearing blood, stimulating appetite and promoting blood circulation. Japanese people grind their roots into paste, which is bright green in color and has a strong spicy taste. It is used as a seasoning for eating sashimi, sushi and soba noodles, and also as a processing material for seafood seasoning-green mustard. It has the functions of strong sterilization and killing parasites in the digestive system, promoting the digestion of starchy food and stabilizing vitamin C in the stomach. In addition to the rhizome being used as seasoning for sashimi, sushi and mustard noodles, petioles and tillers can be directly used as fresh vegetables, such as cutting into pieces and pickling with sauce, distiller's grains and vinegar, which have a unique flavor. Horseradish sauce or juice is wrapped with gauze and applied to the affected area, which can also relieve neuropathic pain. Its health care and medicinal functions have also been paid more and more attention in the world, and its edible range has been expanding.
Wasabi is wild in the cold and humid valley of Shan Ye in Japan and China. Artificial cultivation began in Japan 350 years ago, and it is also widely cultivated in Taiwan Province Province of China. However, the production of wasabi has strong regional characteristics, which requires special ecological environment conditions and strict requirements on natural conditions such as climate, water source and soil.