Shiitake

The shiitake is a type of large mushroom known for its delicious taste and many health benefits. It comes from a plant called Lentinula edodes and grows naturally in places like East Asia and Southeast Asia. People have been enjoying shiitake mushrooms for thousands of years because they taste great and are good for you.

Today, shiitake mushrooms are grown all over the world. They are used in many dishes, from soups to stir-fries, and are loved for their unique flavor. Besides tasting good, shiitake mushrooms are also thought to help keep the body healthy, making them a favorite in kitchens and health stores everywhere.

As a macrofungus, the shiitake is an important part of nature and our food. It shows how we can take something from the earth and use it to make tasty and nutritious meals.

Taxonomy

The shiitake mushroom was first described in 1877 by a scientist named Miles Joseph Berkeley. Later, in 1976, it was placed in a group called Lentinula by another scientist, David Pegler. Over time, it has been known by many different names in scientific records.

The Japanese name "shiitake" comes from the tree Castanopsis cuspidata, where the mushroom often grows, and the word for "mushroom." The scientific name "edodes" means "edible" in Latin. It is also known by other names such as "sawtooth oak mushroom," "black forest mushroom," "black mushroom," "golden oak mushroom," or "oakwood mushroom."

Distribution and habitat

Shiitake mushrooms grow in groups on decaying wood from deciduous trees. They are often found on trees like shii, chinquapins, chestnut, oak, maple, beech, sweetgum, poplar, hornbeam, ironwood, and mulberry. These mushrooms naturally live in warm and moist areas of Southeast Asia.

Cultivation

The first known record of growing shiitake mushrooms was written in 1209 in China during the Song dynasty. A Japanese book from 1796 described how people grew these mushrooms by placing logs from shii trees in areas where the mushrooms were already growing.

Today, shiitake mushrooms are grown all over the world, making up about 25% of all mushrooms produced each year. They are usually grown in special conditions that mimic their natural habitat, using either special materials or hardwood logs like oak.

Toxicity

Eating raw or only slightly cooked shiitake mushrooms can sometimes cause a special kind of reaction called shiitake dermatitis. This reaction causes a red, itchy rash that appears all over the body, including the face and scalp, about 24 hours after eating the mushrooms. The rash can get worse if you go out in the sun and usually goes away after 3 to 21 days. This reaction is thought to be caused by a natural substance in the mushrooms and is more common in places where people eat shiitake often. Cooking the mushrooms thoroughly can help prevent this reaction.

Uses

Fresh and dried shiitake mushrooms are used in many dishes in East and Southeast Asia. In Chinese cuisine, they are added to soups, slow-cooked dishes, and stir-fried vegetable dishes like Buddha's delight. In Japan, they are enjoyed in miso soup, help make a special kind of vegetarian broth called dashi, and are used in many steamed and simmered meals.

There are two special types made in cooler places. One is called dōnggū in Chinese, or donko in Japanese, meaning "winter mushroom". The most special one is huāgū in Chinese, or "flower mushroom", because its cap has a pretty pattern of cracks that look like flowers.

Nutrition

Raw shiitake mushrooms are mostly water—about 90%—with a little bit of carbohydrates, protein, and fat. Eating 100 grams, or about 3.5 ounces, gives you just 34 calories. They also have several B vitamins and some important dietary minerals.

Like all mushrooms, shiitakes can make vitamin D2 when their special substance called ergosterol is touched by ultraviolet B light from the sun or special lights.