:Flammulina filiformis

File:Golden needle mushrooms 1.jpg

In Japanese, the mushroom is known as enoki-take or enoki-dake, both meaning "hackberry mushroom". This is because it is often found growing at the base of hackberry (enoki) trees.

In Mandarin Chinese, the mushroom is called jīnzhēngū ({{lang|zh-hans|{{linktext|金針菇}}}} "gold needle mushroom") or jīngū (金菇 "gold mushroom").

In Korean, it is called paengi beoseot (팽이버섯) which means "mushroom planted near catalpa". In Vietnamese it is known as nấm kim châm. In India it is called [http://www.chhattisgarhrecipes.com/2017/01/futu-long-mushroom.html?m=1 futu].

Basidiocarps are agaricoid and grow in clusters. Individual fruit bodies are up to {{Convert|50|mm|abbr=off|frac=4}} tall, the cap convex at first, becoming flat when expanded, up to {{Convert|45|mm|abbr=on|frac=4}} across. The cap surface is smooth, viscid when damp, ochraceous yellow to yellow-brown. The lamellae (gills) are cream to yellowish white. The stipe (stem) is smooth, pale yellow at the apex, yellow-brown to dark brown towards the base, and lacking a ring. The spore print is white, the spores (under a microscope) smooth, inamyloid, ellipsoid to cylindrical, c. 5 to 7 by 3 to 3.5μm.

There is a significant difference in appearance between wild and cultivated basidiocarps. Cultivated enokitake are not exposed to light, resulting in white or pallid fruit bodies with long stipes and small caps.

Flammulina filiformis was originally described from China in 2015 as a variety of F. velutipes, based on internal transcribed spacer sequences.{{cite journal |doi=10.13346/j.mycosystema.150080 |url=https://www.researchgate.net/publication/280696631 |journal=Mycosystema |volume=34|issue=4 |page=600 |date=2015|title=Species diversity of Flammulina in China: new varieties and a new record|author1=Z.W. Ge |author2=Kuan Zhao |author3=Zhu L. Yang }} Further molecular research using a combination of different sequences has shown that F. filiformis and F. velutipes are distinct and should be recognized as separate species.

{{nutritional value

| name=Mushrooms, enoki, raw

| water=88 g

| kJ=153

| protein=2.7 g

| fat=0.3 g

| carbs=7.8 g

| fiber=2.7 g

| sugars=0.2 g

| calcium_mg=0

| iron_mg=1.2

| magnesium_mg=16

| phosphorus_mg=105

| potassium_mg=359

| sodium_mg=3

| zinc_mg=0.65

| vitC_mg=0

| thiamin_mg=0.23

| riboflavin_mg=0.2

| niacin_mg=7.3

| pantothenic_mg=1.4

| vitB6_mg=0.1

| folate_ug=48

| selenium_ug=2.2

| source_usda = 1

| note=[https://fdc.nal.usda.gov/fdc-app.html#/food-details/169382/nutrients Link to USDA Database entry]

}}

The fungus is found on dead wood of Betula platyphylla, Broussonetia papyrifera, Dipentodon sinicus, Neolitsea sp., Salix spp, and other broad-leaved trees. It grows naturally in China, Korea, and Japan.

Enoki mushrooms are 88% water, 8% carbohydrates, 3% protein, and contain negligible fat (table). In a 100-gram reference serving, enoki mushrooms provide {{convert|153|kJ|kcal|abbr=off}} of food energy and are an excellent source (20% or more of the Daily Value) of the B vitamins, thiamine, niacin, and pantothenic acid, while supplying moderate amounts of riboflavin, folate, and phosphorus (table).

The nutritional value of F. filiformis has long been recognised, which makes them an object of interest in current research. F. filiformis is a rich source for carbohydrates, proteins and unsaturated fatty acids as well as several noteworthy micronutrients and dietary fiber.

While its nutritional value and culinary applications are well established, recent studies have begun exploring its potential medicinal properties in greater depth. Several bioactive molecules from various chemical classes have been isolated from F. filiformis extracts, showing promising potential for future applications as nutraceuticals or dietary supplements. Moreover, bioactive polysaccharides derived from F. filiformis have demonstrated to exhibit a broad spectrum of bioactivities, including anticancer, immunomodulatory, and anti-neurodegenerative effects. However, the precise mechanisms underlying these actions remain unclear and warrant further investigation in future research.

In conclusion, F. filiformis holds significant promise as both a functional food and a nutraceutical, and may serve as an interesting source of bioactive compounds for therapeutic and pharmaceutical purposes.

F. filiformis has been cultivated in China since 800 AD.{{cite journal |vauthors=Tang C, Hoo PC, Tan LT, Pusparajah P, Khan TM, Lee LH, Goh BH, Chan KG |display-authors=3|date=2016 |title=Golden needle mushroom: a culinary medicine with evidenced-based biological activities and health promoting properties |journal=Frontiers in Pharmacology |volume=7 |page=474 |doi=10.3389/fphar.2016.00474|pmid=28003804 |pmc=5141589 |doi-access=free }} Commercial production in China was estimated at 1.57 million tonnes per annum in 2010, with Japan producing an additional 140,000 tonnes per annum.{{cite journal |author= Royse DJ |date=2014 |title=A Global Perspective on the High Five: Agaricus, Pleurotus, Lentinula, Auricularia & Flammulina|journal=Proceedings of the 8th International Conference on Mushroom Biology and Mushroom Products (ICMBMP8) |url=https://www.cabi.org/isc/FullTextPDF/2015/20153365467.pdf}} The fungus can be cultivated on a range of simple, lignocellulosic substrates including sawdust, wheat straw, and paddy straw.{{cite journal |vauthors=Dowom SA, Rezaeian S, Pourianfar HR |date=2019 |title=Agronomic and environmental factors affecting cultivation of the winter mushroom or Enokitake: achievements and prospects |journal=Applied Microbiology and Biotechnology |volume=103 |issue=6 |pages=2469–2481 |doi=10.1007/s00253-019-09652-y|pmid=30685812 |s2cid=59273677 }} Enokitake are typically grown in the dark, producing pallid fruitbodies having long and narrow stipes with undeveloped caps. Exposure to light results in more normal, short-stiped, colored fruitbodies.

The mushroom is widely eaten in East Asia. Cultivated F. filiformis is sold both fresh and canned. The fungus has a crisp texture and can be refrigerated for approximately one week. It is a common ingredient for soups, especially in East Asian cuisine,{{cite magazine|last=Chaey |first=Christina |title=You Should Be Cooking with Enoki Mushrooms, the Easiest Fungi to Love |url=https://www.bonappetit.com/story/enoki-mushrooms |magazine=Bon Appétit |date=March 2, 2018}} but can be used for salads and other dishes.

File:Enoki mushroom Korean sundubu-jjigae (soft tofu stew).jpg|In Korean jjigae (stew)

File:Hwanggeum-paengi-bokkeum 2.jpg|In Korean bokkeum (stir-fry)

File:Ingredients for Japanese Hot Pot (4105049775).jpg|In Japanese sukiyaki

File:Grilled enoki-dake mushrooms (5993870972).jpg|Grilled

F. filiformis extract can be added to whipped cream. It was observed that this measure helps to slow down the development of ice crystals, which would maintain the quality of whipped cream longer while storing it in a frozen state.{{Cite journal |last1=Arai |first1=Naoki |last2=Fujiwara |first2=Ayako |last3=Wakuda |first3=Michiyo |last4=Fujimoto |first4=Toshihiro |last5=Nambu |first5=Yuko |last6=Ishii |first6=Toya |last7=Matsumiya |first7=Kentaro |last8=Matsumura |first8=Yasuki |last9=Kawahara |first9=Hidehisa |last10=Ogino |first10=Koji |date=February 2021 |title=Anti-freeze effect of Enoki mushroom extract on the quality preservation of frozen whipped cream |url=https://linkinghub.elsevier.com/retrieve/pii/S0260877420303733 |journal=Journal of Food Engineering |language=en |volume=291 |pages=110285 |doi=10.1016/j.jfoodeng.2020.110285}}

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F. filiformis are an object of interest in current research for their potential to enhance food products and animal feed by using the stem waste.

Studies indicate that the addition of F. filiformis stem waste powder to meat products can improve nutritional quality by increasing dietary fiber and ash content.{{Cite journal |last1=Banerjee |first1=Dipak Kumar |last2=Das |first2=Arun K. |last3=Banerjee |first3=Rituparna |last4=Pateiro |first4=Mirian |last5=Nanda |first5=Pramod Kumar |last6=Gadekar |first6=Yogesh P. |last7=Biswas |first7=Subhasish |last8=McClements |first8=David Julian |last9=Lorenzo |first9=Jose M. |date=2020-04-04 |title=Application of Enoki Mushroom (Flammulina Velutipes) Stem Wastes as Functional Ingredients in Goat Meat Nuggets |journal=Foods |language=en |volume=9 |issue=4 |pages=432 |doi=10.3390/foods9040432 |doi-access=free |issn=2304-8158 |pmc=7231162 |pmid=32260391}} This ingredient also enhances tenderness, inhibits lipid and protein oxidation, and extends shelf life, without negatively impacting the texture or flavor of the meat products.{{Cite journal |last1=Wang |first1=Xuping |last2=Xu |first2=Mingying |last3=Cheng |first3=Jingrong |last4=Zhang |first4=Wei |last5=Liu |first5=Xueming |last6=Zhou |first6=Pengfei |date=August 2019 |title=Effect of Flammulina velutipes on the physicochemical and sensory characteristics of Cantonese sausages |url=https://linkinghub.elsevier.com/retrieve/pii/S0309174018311331 |journal=Meat Science |language=en |volume=154 |pages=22–28 |doi=10.1016/j.meatsci.2019.04.003|pmid=30981131 }}{{Cite journal |last1=Kang |first1=G.H. |last2=Kim |first2=S.H. |last3=Kim |first3=J.H. |last4=Kang |first4=H.K. |last5=Kim |first5=D.W. |last6=Seong |first6=P.N. |last7=Cho |first7=S.H. |last8=Park |first8=B.Y. |last9=Kim |first9=D.H. |date=January 2012 |title=Effect of Flammulina velutipes on spent-hen breast meat tenderization |url=https://linkinghub.elsevier.com/retrieve/pii/S003257911940179X |journal=Poultry Science |language=en |volume=91 |issue=1 |pages=232–236 |doi=10.3382/ps.2011-01624|pmid=22184449 }}

Natural feed additives become more important in livestock farming. Following this trend, F. filiformis was checked for livestock health and production efficiency improving properties. There are studies showing that the use of Enoki mushroom residue as a feed additive offers several benefits for livestock. It enhances antioxidant enzyme activity, and improves animal digestibility, hormone levels, and immunity.

The addition of mushroom residue in the livestock diet can reduce the feed cost and feed conversion ratio and enhance the meat quality, providing consumers with healthier and higher-quality meat products.{{Cite journal |last1=Long |first1=Yong |last2=Xiao |first2=Wen |last3=Zhao |first3=Yanpin |last4=Yuan |first4=Chao |last5=Wang |first5=Defeng |last6=Yang |first6=Yang |last7=Su |first7=Chaozhi |last8=Paengkoum |first8=Pramote |last9=Han |first9=Yong |date=2024-01-24 |title=Effects of Flammulina velutipes mushroom residues on growth performance, apparent digestibility, serum biochemical indicators, rumen fermentation and microbial of Guizhou black goat |journal=Frontiers in Microbiology |volume=15 |doi=10.3389/fmicb.2024.1347853 |doi-access=free |issn=1664-302X |pmc=10848151 |pmid=38328420}}

File:Enoki mushrooms (50313211173).jpg

The common way to cultivate F. filiformis is in a large-scale factory style. By using modern possibilities to mechanize processes, over 300'000 tons a year of F. filiformis can be harvested that way.{{Cite journal |last1=Lu |first1=Yuan-Ping |last2=Chen |first2=Ren-Liang |last3=Long |first3=Ying |last4=Li |first4=Xiao |last5=Jiang |first5=Yu-Ji |last6=Xie |first6=Bao-Gui |date=2016-11-28 |title=A Jacalin-Related Lectin Regulated the Formation of Aerial Mycelium and Fruiting Body in Flammulina velutipes |journal=International Journal of Molecular Sciences |language=en |volume=17 |issue=12 |pages=1884 |doi=10.3390/ijms17121884 |doi-access=free |issn=1422-0067 |pmc=5187758 |pmid=27916794}}

F. filiformis thrive in a warm, moist environment during the incubation phase, with substrate temperatures ranging from 18 to 25 °C (64 to 77 °F). F. filiformis need significantly cooler conditions to trigger fruiting. Pinning is triggered at temperatures ranging between 7 and 10 °C (45 and 50 °F), and the optimal temperature range for fruiting is 10 to 16 °C (50 to 61 °F). As with most fungi, F. filiformis also demand elevated humidity levels—95 to 100% during pinning and 85 to 95% during fruiting.{{Cite web |last=Sayner |first=Adam |date=2024-12-01 |title="GroCycle". The Ultimate Guide to Enoki Mushrooms. |url=https://grocycle.com/enoki-mushrooms/}}

The ideal size to harvest enoki mushrooms is generally recommended to be about 2-4 inches in length. At that time, the cap of F. filiformis should still be tightly closed and the stem should be long and sturdy. If people grow enoki mushrooms at home, they can use a sharp knife or scissors to snip off the mushroom cluster at the base of the stem where it meets the growing medium. It's important to remove both the mushrooms and any remaining mycelium (the white, thread-like structures) from the growing medium during harvest. This helps prevent decaying, which could negatively impact future mushroom growth.{{Cite web |date=2024-12-01 |title="Mushrology". Enoki Mushrooms Cultivation: Grow Tips & Tricks. |url=https://mushroology.com/enoki-mushrooms/}}

File:Enoki paddenstoel.jpg

F. filiformis have thin, delicate stems that need to be handled with care to prevent damage. The following steps are for reference. First, gently brush off any dirt or substrate with a soft brush or a damp cloth. After cleaning, separate the mushroom clusters into individual stems for easier cooking and presentation.

F. filiformis should be kept at temperatures between 7-10 °C (44.6-50 °F) for optimal freshness. For brief storage (fewer than 7 days), a temperature interval of 1-2 °C (34-36 °F) with 90-98% relative humidity is advised.

F. filiformis have the potential to be contaminated with listeria monocytogenes, which is why disease control centers recommend cooking the mushroom upon consumption.

Singapore Food Agency advise people to do the following to ensure food security when consuming F. filiformis:

1. Enoki mushrooms should never be eaten raw
2. Instead, make sure to cook the mushrooms properly before eating them
3. If there are cooking directions at hand, make sure to follow them
4. Enoki mushrooms should be stored at cold temperatures to ensure a slower growth of microbes. This should be done even if the packaging is not opened yet
5. Uncooked enoki mushroom should be stored separately to avoid cross-contamination{{Cite web |last=Dr Yong Quan |first=Tan |date=2023-02-16 |title=Safe Practices when Handling and Consuming Enoki Mushroom |url=https://www.sfa.gov.sg/food-safety-tips/food-risk-concerns/risk-at-a-glance/enoki-mushrooms}}

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Category:Chinese edible mushrooms

Category:Edible fungi

Category:Fungi described in 2015

Category:Fungi in cultivation

Category:Fungi of Asia

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Category:Medicinal fungi

Category:Physalacriaceae