Medicinal Mushrooms

Medicinal mushrooms are macrofungi containing bioactive compounds and have been used in traditional medicine for centuries. Today, their potential health benefits such as immune support, anticancer, and antioxidant effects are being scientifically investigated.

Biologically Active Components and Common Effects

The health effects of medicinal mushrooms stem from a variety of bioactive components they contain. These include polysaccharides (particularly β-glucans), terpenoids, phenolic compounds, vitamins, and minerals. Scientific studies have reported that these components exhibit various pharmacological activities.

Immunomodulatory Effect

One of the most extensively studied properties of medicinal mushrooms is their ability to regulate the immune system. Mushroom-derived β-glucans have been shown to enhance macrophage function and increase the body’s resistance to various infections. It is noted that consuming Ganoderma lucidum (Reishi) as tea is among the most natural methods to strengthen the immune system.

Anticancer Effect

Many medicinal mushrooms have been reported to possess antitumor activity. This effect is typically achieved not by directly killing cancer cells but by activating the body’s immune response. Certain phenolic compounds such as hispolon have been shown to exhibit anticancer activity through mechanisms such as halting the cell cycle and triggering apoptosis (programmed cell death). Some mushroom polysaccharides including lentinan, schizophyllan, and Krestin (PSK) have been commercialized and are used in anticancer therapies.

Antioxidant and Anti-inflammatory Effects

Medicinal mushrooms are significant sources of antioxidants due to their phenolic compounds and other bioactive substances. These properties protect against cellular damage caused by oxidative stress. Additionally, many species are known to possess anti-inflammatory properties.

Main Types of Medicinal Mushrooms

There are numerous types of medicinal mushrooms mentioned in the literature and traditional medicine. Some of these include:

Ganoderma lucidum (Reishi Mushroom)

One of the most widely used and extensively researched species in Asian traditional medicine. It is found naturally in almost all regions of Türkiye and is not consumed directly due to its hard, woody structure; instead, it is used as tea or extract. Archaeological findings dating back to the Neolithic period indicate that this mushroom has been used since ancient times.

Ganoderma lucidum (Pexels)

Lentinula edodes (Shiitake Mushroom)

A widely cultivated species for both food and medicinal purposes. It is used in the food, pharmaceutical, and cosmetic industries due to its nutritional value and bioactive components. Industrial production without chemical inputs is carried out at a facility established within Afyonkarahisar Health Sciences University (AFSÜ). It is the source of lentinan, a compound used in stomach cancer treatment.

Lentinula edodes (Pexels)

Grifola frondosa (Maitake Mushroom)

The β-glucan compound isolated from this mushroom, known as D-fraction, has been reported to have immune-enhancing and antitumor effects.

Grifola frondosa (Pexels)

Hericium erinaceus (Lion’s Mane Mushroom, Bearded Tooth)

This mushroom, both edible and medicinally valuable, is among the most extensively analyzed species.

Inonotus obliquus (Chaga Mushroom)

Particularly known for its antioxidant activity and one of the rapidly growing species in medicinal mushroom cultivation.

Trametes versicolor (Turkey Tail Mushroom)

It is reported to be a common and economically valuable species found naturally in Türkiye. The polysaccharide-K (PSK, Krestin), known for its immune-supporting properties, has been isolated from this mushroom, traditionally consumed as tea in Asian traditional medicine.

Trametes versicolor (Pexels)

Auricularia species (Jelly Ear Mushroom)

Especially Auricularia auricula-judae has been used in Asian traditional medicine for treating ulcers, throat ailments, and eye inflammations. It has also been reported to possess anticoagulant, hypoglycemic, and hypolipidemic effects.

Fomes fomentarius (Tinder Fungus)

This mushroom, known to have been used since prehistoric times, has been employed in Traditional Chinese Medicine for treating various ailments.

Fomes fomentarius (Pexels)

Schizophyllum commune (Split Gill Mushroom)

Traditionally used in Asian medicine for treating leukorrhea and regulating blood pressure.

Puffball Mushroom

It has been reported that the Cherokee, Aztecs, and Mayans used puffball mushrooms, particularly to stop bleeding after childbirth.

Applications and Research

Medicinal mushrooms have traditionally been consumed as teas and tonics. In recent years, with the increase in scientific research, they have begun to be used in various other fields.

Traditional and Complementary Medicine (TCM)

As an adjuvant therapy known as mycotherapy, they are used to strengthen the immune system and prevent infections.

Pharmaceutical and Nutraceutical Products

Extracts derived from medicinal mushrooms are evaluated for use in pharmaceutical raw materials, dietary supplements, and functional foods.

Food and Cosmetic Industries

Due to their bioactive components, they also hold potential applications in the food and cosmetic industries.

However, most scientific studies on medicinal mushrooms are still at the in vitro (cell culture) level. Further clinical research is needed to fully understand the mechanisms of action, toxicity, and effects on human health.

Initiatives and Research in Türkiye

In Türkiye, interest in medicinal mushrooms and academic research in this field has accelerated over the past 20 years. Some key initiatives include:

Production and Industrial Applications

Afyonkarahisar Health Sciences University (AFSÜ), with support from the Zafer Development Agency, is implementing the “Edible and Medicinal Mushroom Cultivation” project. As part of this project, industrial-scale production of Shiitake mushrooms without chemical inputs has been successfully carried out, with the first harvest completed. The production facility established at AFSÜ includes experimental chambers, laboratories, cold storage, and packaging areas. The aim is for this facility to provide raw material support for pharmaceutical and food supplement research in Türkiye.

First Medicinal Mushroom Harvest at AFSÜ (AFSÜ)

Development of Native Species

Field studies are being conducted on medicinal mushrooms naturally growing in various regions of Türkiye, such as the Yalova forests. One goal of these studies is to improve native medicinal mushroom species and produce local mycelium (spawn) using biotechnological methods to reduce dependence on imports in this field.

Economic Potential

Medicinal mushrooms possess significant economic potential through production, cultivation, and trade. In Europe, the use of medicinal mushrooms as dietary supplements has become highly popular over the past 50 years. In Türkiye, naturally occurring species such as Porcini, Caesar, and Emperor mushrooms, which hold an important place in European cuisine, are collected and exported. This has turned mushroom foraging into a significant income source for local communities in areas such as Armutlu district of Yalova. Institutional initiatives such as the project at AFSÜ aim to scale up medicinal mushroom production to an industrial level, creating new business opportunities and employment for local farmers, industrialists, and graduates.

Safety and Precautions

The use of unproven alternative products, especially during active treatment phases, is not recommended. However, recent academic studies have increased interest in this field and have contributed to mushroom foraging becoming a livelihood source for the public.