White and Enoki mushrooms – while common, they are just one of the many types of mushrooms cultivated and eaten
Edible mushrooms are the fleshy and edible fruit bodies of several species of macrofungi (fungi which bear fruiting structures that are large enough to be seen with the naked eye). They can appear either below ground (hypogeous) or above ground (epigeous) where they may be picked by hand.[1] Edibility may be defined by criteria that include absence of poisonous effects on humans and desirable taste and aroma.[2] Edible mushrooms are consumed for their nutritional and culinary value. Mushrooms, especially dried shiitake, are sources of umami flavor.[3]: 11, 52, 110 [4]
Edible mushrooms include many fungal species that are either harvested wild or cultivated. Easily cultivated and common wild mushrooms are often available in markets, and those that are more difficult to obtain (such as the prized truffle, matsutake, and morel) may be collected on a smaller scale by private gatherers. Some preparations may render certain poisonous mushrooms fit for consumption.
Before assuming that any wild mushroom is edible, it should be identified. Accurate determination and proper identification of a species is the only safe way to ensure edibility, and the only safeguard against possible accidents. Some mushrooms that are edible for most people can cause allergic reactions in some individuals, and old or improperly stored specimens can cause food poisoning. Great care should therefore be taken when eating any fungus for the first time, and only small quantities should be consumed in case of individual allergies. Deadly poisonous mushrooms that are frequently confused with edible mushrooms and responsible for many fatal poisonings include several species of the genus Amanita, particularly Amanita phalloides, the death cap. Even normally edible species of mushrooms may be dangerous, as mushrooms growing in polluted locations can accumulate pollutants, such as heavy metals.[5]
Mycophagy/maɪˈkɒfədʒi/, the act of consuming mushrooms, dates back to ancient times. Edible mushroom species have been found in association with 13,000-year-old archaeological sites in Chile. Ötzi, the mummy of a man who lived between 3400 and 3100 BCE in Europe, was found with two types of mushroom. The Chinese value mushrooms for their supposed medicinal properties as well as for food. Ancient Romans and Greeks, particularly the upper classes, used mushrooms for culinary purposes. Food tasters were employed by Roman emperors to ensure that mushrooms were safe to eat.[8]
Production
In 2019, world production of commercial mushrooms and recorded truffle collection reported to the Food and Agriculture Organization was 11.9 million tonnes, led by China with 75% of the total:
Mushrooms may be cooked before consumption to improve texture and lower trace levels of toxic hydrazines. Frying, roasting, baking, and microwaving are all used to prepare mushrooms. Cooking lowers the amount of water present in the food. Mushrooms do not go mushy with long term cooking because the chitin that gives most of the structure to a mushroom does not break down until 400 °C (752 °F) which is not reached in any normal cooking.[citation needed]
Storage
Mushrooms will usually last a few days, longer if refrigerated. Mushrooms can be frozen, but are best cooked first. They can also be dried or pickled.
A commonly eaten mushroom is the white mushroom (Agaricus bisporus). In a 100-gram (3+1⁄2-ounce) reference serving, Agaricus mushrooms provide 92 kilojoules (22 kilocalories) of food energy and are 92% water, 3% carbohydrates, 3% protein, and 0.3% fat. They contain high levels of riboflavin, niacin, and pantothenic acid, with moderate content of phosphorus (see table). Otherwise, raw white mushrooms generally have low amounts of essential nutrients. Although cooking by boiling lowers mushroom water content only 1%, the contents per 100 grams for several nutrients increase appreciably, especially for dietary minerals.
The content of vitamin D is absent or low unless mushrooms are exposed to sunlight or purposely treated with artificial ultraviolet light, even after harvesting and processed into dry powder.[12][13]
Testing showed an hour of UV light exposure before harvesting made a serving of mushrooms contain twice the FDA's daily recommendation of vitamin D. With 5 minutes of artificial UV light exposure after harvesting, a serving of mushrooms contained four times as much.[12] Analysis also demonstrated that natural sunlight produced vitamin D2.[13]
The form of vitamin D found in UV-irradiated mushrooms is ergocalciferol, or vitamin D2. This is not the same as cholecalciferol, called vitamin D3, which is produced by UV-irradiation of human or animal skin, fur, and feathers. Although vitamin D2 has vitamin-D activity in humans, and is widely used in food fortification and nutritional supplements, vitamin D3 is more commonly used in dairy and cereal products.
Some wild species are toxic, or at least indigestible, when raw.[21] The safety of consuming Reishi mushrooms has not been adequately demonstrated, as of 2019.[6] Reishi mushrooms may cause side effects including dryness of the mouth or throat, itchiness, rash, stomach upset, diarrhea, headache, or allergic reactions.[6] Failure to identify poisonous mushrooms and confusing them with edible ones has resulted in death.[21][22][23]
List of edible mushrooms
Commercially cultivated
Mushroom cultivation has a long history, with over twenty species commercially cultivated. Mushrooms are cultivated in at least 60 countries.[24] A fraction of the many fungi consumed by humans are currently cultivated and sold commercially. Commercial cultivation is important ecologically, as there have been concerns of the depletion of larger fungi such as chanterelles in Europe, possibly because the group has grown popular, yet remains a challenge to cultivate.
Agaricus bisporus dominates the edible mushroom market in North America and Europe, in several forms. It is an edible basidiomycete mushroom native to grasslands in Europe and North America. As it ages, this mushroom turns from small, white and smooth to large and light brown. In its youngest form, it is known as the 'common mushroom', 'button mushroom', 'cultivated mushroom', and 'champignon mushroom'. Its fully mature form is known as 'portobello'. Its semi-mature form is known variously as 'cremini', 'baby-bella', 'Swiss brown' mushroom, 'Roman brown' mushroom, 'Italian brown' mushroom, or 'chestnut' mushroom.[25][26][27][28]
Pleurotus species, the oyster mushrooms, are commonly grown at industrial scale.[28]
Tremella fuciformis, the snow fungus, snow ear, silver ear fungus and white jelly mushroom
Hypsizygus tessellatus, aka Hypsizygus marmoreus, the beech mushroom, also known in its white and brown varieties as Bunapi-shimeji and Buna-shimeji, respectively
Stropharia rugosoannulata, the wine cap mushroom, burgundy mushroom, garden giant mushroom or king stropharia
Cyclocybe aegerita, the pioppino, velvet pioppini, poplar or black poplar mushroom
Hericium erinaceus, the lion's mane, monkey head, bearded tooth, satyr's beard, bearded hedgehog, or pom pom mushroom.
Phallus indusiatus, the bamboo mushrooms, bamboo pith, long net stinkhorn, crinoline stinkhorn or veiled lady mushroom.
Some species are difficult to cultivate; others (particularly mycorrhizal species) have not yet been successfully cultivated. Some of these species are harvested from the wild and can be found in markets. When in the season they can be purchased fresh, and many species are sold dried as well. The following species are commonly harvested from the wild:
Boletus edulis or edible Boletus, native to Europe, known in Italian as fungo porcino (plural 'porcini') (pig mushroom), in German as Steinpilz (stone mushroom), in Russian as Russian: Белый гриб, tr.Bely grib (white mushroom), in Albanian as (wolf mushroom), in French as the cèpe and in the UK as the penny bun. It is also known as the king bolete, and is renowned for its delicious flavor. It is sought after worldwide, and can be found in a variety of culinary dishes.
Calbovista subsculpta commonly known as the sculptured giant puffball is a common puffball of the Rocky Mountains and Pacific Coast ranges of western North America. The puffball is more or less round with a diameter of up to 15 cm (6 in), white becoming brownish in age, and covered with shallow pyramid-shaped plates or scales. It fruits singly or in groups along roads and in open woods at high elevations, from summer to autumn. It is considered a choice edible species while its interior flesh (the gleba) is still firm and white. As the puffball matures, its insides become dark brown and powdery from mature spores.
Calvatia gigantea the giant puffball. Giant puffballs are considered a choice edible species and are commonly found in meadows, fields, and deciduous forests usually in late summer and autumn. It is found in temperate areas throughout the world.[29] They can reach diameters up to 150 cm (60 in) and weights of 20 kg (45 lb). The inside of mature Giant puffballs is greenish brown, whereas the interior of immature puffballs is white. The large white mushrooms are edible when young.[30][31]
Cantharellus cibarius (the chanterelle), The yellow chanterelle is one of the best and most easily recognizable mushrooms and can be found in Asia, Europe, North America and Australia. There are poisonous mushrooms that resemble it, though these can be confidently distinguished if one is familiar with the chanterelle's identifying features.
Grifola frondosa, known in Japan as maitake (also "hen of the woods" or "sheep’s head"), a large, hearty mushroom commonly found on or near stumps and bases of oak trees, and believed to have Macrolepiota procera properties.
Gyromitra esculenta (the false morel) is prized by the Finns. This mushroom is deadly poisonous if eaten raw, but highly regarded when parboiled (see below).
Hydnum repandum, sweet tooth fungus, hedgehog mushroom or hedgehog fungus, urchin of the woods
Lactarius deliciosus, saffron milk cap, consumed around the world and prized in Russia
Morchella species, (morel family) morels belong to the ascomycete grouping of fungi. They are usually found in open scrub, woodland or open ground in late spring. When collecting this fungus, care must be taken to distinguish it from the poisonous false morels, including Gyromitra esculenta. The morel must be cooked before eating.
Termitomyces species are symbiotes of termites and the mushrooms grow out of termite mounds. This genus includes the largest edible mushroom, Termitomyces titanicus, with a cap that averages 1 m in diameter,[33] though most species are much smaller. Research is underway to determine how to cultivate these mushrooms.[34]
Tuber, species, (the truffle), Truffles have long eluded the modern techniques of domestication known as trufficulture. Although the field of trufficulture has greatly expanded since its inception in 1808, several species still remain uncultivated. Domesticated truffles include:
Many wild species are consumed around the world. The species which can be identified "in the field" (without use of special chemistry or a microscope) and therefore safely eaten vary widely from country to country, even from region to region. This list is a sampling of lesser-known species that are reported as edible.
Coprinus comatus, the Shaggy mane, Shaggy Inkcap or Lawyer's Wig. Must be cooked as soon as possible after harvesting or the caps will first turn dark and unappetizing, then deliquesce and turn to ink. Not found in markets for this reason.
Corn smut economically important pathogens of cereals. Known in Mexico as huitlacoche, where it is considered a delicacy. Corn smuts can be used as fillings in quesadillas, tacos and soups.[36]
Amanita fulva (Tawny Grisette) must be cooked before eating.
Amanita muscaria is edible if parboiled to leach out toxins,[37] fresh mushrooms cause vomiting, twitching, drowsiness, and hallucinations due to the presence of muscimol. Although present in A. muscaria, ibotenic acid is not in high enough concentration to produce any physical or psychological effects unless massive amounts are ingested.
Coprinopsis atramentaria (Coprinus atramentarius - Common Inkcap) is edible without special preparation, however, consumption with alcohol is toxic due to the presence of coprine. Some other Coprinus spp. share this property.
Gyromitra esculenta (False Morel - Turban, Brain Mushroom) is eaten by some after it has been parboiled, however, many mycologists do not recommend it. Raw Gyromitra are toxic due to the presence of gyromitrin, and it is not known whether all of the toxin can be removed by parboiling.
Lactarius spp. Apart from Lactarius deliciosus (Saffron Milkcap), which is universally considered edible, other Lactarius spp. that are considered toxic elsewhere in the world are eaten in some Eastern European countries and Russia after pickling or parboiling.[38]
Verpa bohemica is considered choice by some—it even can be found for sale as a "morel"—but cases of toxicity have been reported. Verpas appear to contain monomethylhydrazine[40] and similar precautions apply to them as Gyromitra species.
^Kalač, Pavel; Svoboda, Lubomír (15 May 2000). "A review of trace element concentrations in edible mushrooms". Food Chemistry. 69 (3): 273–281. doi:10.1016/S0308-8146(99)00264-2.
^ abcd"Reishi mushroom". MedlinePlus, US National Library of Medicine. 19 January 2019. Retrieved 24 January 2019.
^ abcKoyyalamudi SR, Jeong SC, Song CH, Cho KY, Pang G (April 2009). "Vitamin D2 formation and bioavailability from Agaricus bisporus button mushrooms treated with ultraviolet irradiation". J Agric Food Chem. 57 (8): 3351–5. doi:10.1021/jf803908q. PMID19281276.
^Kalaras MD, Beelman RB, Holick MF, Elias RJ (2012). "Generation of potentially bioactive ergosterol-derived products following pulsed ultraviolet light exposure of mushrooms (Agaricus bisporus)". Food Chem. 135 (2): 396–401. doi:10.1016/j.foodchem.2012.04.132. PMID22868105.
^Sullivan R, Smith JE, Rowan NJ (2006). "Medicinal mushrooms and cancer therapy: translating a traditional practice into Western medicine". Perspect Biol Med. 49 (2): 159–70. doi:10.1353/pbm.2006.0034. PMID16702701. S2CID29723996.
^Hobbs CJ. (1995). Medicinal Mushrooms: An Exploration of Tradition, Healing & Culture. Portland, Oregon: Culinary Arts Ltd. p. 20. ISBN978-1-884360-01-5.
^"Coriolus versicolor". About Herbs, Botanicals & Other Products. Memorial Sloan-Kettering Cancer Center. 3 October 2018. Retrieved 24 January 2019.
^"Lentinan (Shiitake)". Memorial Sloan Kettering Cancer Center, New York. 2017. Retrieved 11 January 2017.
^Sullivan, Richard; Smith, John E.; Rowan, Neil J. (2006). "Medicinal Mushrooms and Cancer Therapy: translating a traditional practice into Western medicine". Perspectives in Biology and Medicine. 49 (2): 159–70. doi:10.1353/pbm.2006.0034. PMID16702701. S2CID29723996.
^T. mesenterium was first reported in Great Britain after the wet August 2008: "New fungi species unearthed in UK". BBC News. 9 October 2008. Retrieved 9 October 2008.
^Arora, David. Mushrooms Demystified, 2nd ed. Ten Speed Press, 1986
^Nordisk Ministerråd (2012). Mushrooms Traded As Food. Vol ll Section 1: Nordic Risk Assessments and Background on Edible Mushrooms, Suitable for Commercial Marketing and Background Lists. For Industry, Trade and Food Inspection. Background Information and Guidance Lists on Mushrooms. Denmark: Nordic Council of Ministers. p. 50. ISBN9789289323833.
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