Chengzihe shiitake mushrooms (a specialty of Jixi, Heilongjiang)

Introduction to Chengzihe shiitake mushrooms

Shiitake mushrooms are a type of fungus that grows on wood. The taste is delicious, the aroma is refreshing, and the nutrition is rich. It is known as the "Queen of Plants". Mushrooms are rich in vitamin B group, iron, potassium, vitamin D precursor (converted into vitamin D after sun exposure), sweet taste, and mild nature. Indications include decreased appetite, shortness of breath, and fatigue

The classification status of shiitake mushrooms: shiitake mushrooms belong to the order Agaricales, family Trichomycteridae, genus Shiitake mushrooms, also known as shiitake mushrooms, fragrant mushrooms, fragrant mushrooms, or winter mushrooms

Mushroom cultivation originated in China and has a history of over 800 years. Wu Sangong, a farmer from Longyan Village, Qingyuan County, Zhejiang Province, invented the flower cutting cultivation method as early as the Song Dynasty, which later spread throughout the country. Introduced to Japan through the interaction of monks. The cultivation of shiitake mushrooms by chopping flowers originated in China, while the current cultivation of pure mycelium inoculation of shiitake mushrooms originated in Japan. By 1989, China's total production of shiitake mushrooms had surpassed Japan for the first time, making it the world's largest producer of shiitake mushrooms

Mushroom fruiting bodies are solitary, clustered, or clustered. The cap is circular, usually 5-10cm, sometimes up to 20cm, with a tea brown or dark brown surface covered by dark scales. When young, the edges are curled inward, with white or yellow white hairs that disappear with growth. There is a fungal curtain under the cap, which later ruptures and forms an incomplete fungal ring. The back cover edge of the mature product has rolled back and cracked. Fungal folds are curved and white, with a stem that is either moderately or partially grown, measuring 3-6cm × 1-1.5cm. The interior is solid, and the upper part of the fungal ring is white, while the lower part is brown. The spore print is white, and the basidiospores are colorless under a microscope. They are elliptical, 5-7um × 3.4-4um, and the binucleate hyphae have a lock like association