Chaga Mushroom

Discussion in 'Survival Medicine' started by Seacowboys, Jul 8, 2011.

  1. Seacowboys

    Seacowboys Senior Member Founding Member

    Inonotus obliquus, commonly known as chaga mushroom (a Latinisation of the Russian term 'чага'), is a fungus in the family Hymenochaetaceae. It is parasitic on birch and other trees. The sterile conk is irregularly formed and has the appearance of burnt charcoal. It is not the fruiting body of the fungus, but a sclerotia or mass of mycelium, mostly black due to the presence of massive amounts of melanin. The fertile fruiting body can be found very rarely as a resupinate (crustose) fungus on or near the clinker, usually appearing after the host tree is dead. I. obliquus grows in birch forests of Russia, Korea, Eastern and Northern Europe, northern areas of the United States, in the North Carolina mountains and in Canada.

    The chaga mushroom is considered a medicinal mushroom in Russian and Eastern European folk medicine; medical evidence is emerging.[citation needed]

    Alternative names
    The name chaga (/ˈtʃɑːɡɑː/ ) comes from the Russian word of the mushroom (anglicized from чага), which in turn is purportedly derived from the word for the fungus in Komi-Permyak, the language of the indigenous peoples in the Kama River Basin, west of the Ural Mountains. It is also known as the clinker polypore, cinder conk, black mass and birch canker polypore.[2]

    In Norwegian, the name is kreftkjuke' which literally translates as "cancer polypore", referring to the fungus' appearance or to its alleged medicinal properties. In Finnish, the name is pakurikääpä, combined from pahkura and kääpä translating as "wart polypore".

    In England and Canada, it is known as the sterile conk trunk rot of birch, which refers to the fruiting bodies growing under the outer layers of wood surrounding the sterile conk once the tree is dead, to spread the spores. In France, it is called the carie blanche spongieuse de bouleau (spongy white birch tree rot), and in Germany it is known as Schiefer Schillerporling (oblique Inonotus). The Dutch name is berkenweerschijnzwam (birch glow mushroom).

    Medicinal research
    Chaga has been used as a folk remedy in Russia and other North-European countries for centuries and it featured in Alexandr Solzhenitsyn's 1967 novel Cancer Ward[3]

    Research on the health effects of I. obliquus has shown that extracts of it can hamper the growth and proliferation of tumors[4][5][6][7] as well as have positive effects on the immune system.[8][9][10] Though, according to the Memorial Sloan–Kettering Cancer Center, "no clinical trials have been conducted to assess chaga's safety and efficacy for disease prevention or for the treatment of cancer, cardiovascular disease, or diabetes".[11]

    Laboratory studies on extract of chaga mushroom has indicated possible future potential in cancer therapy,[12] as an antioxidant,[13] in immunotherapy,[14] and as an anti-inflammatory.[15]

    Geographically this fungus is mostly found in very cold habitats. It grows very slowly, suggesting it is not a reliable source of bioactive compounds in the long run. Attempts at cultivating this fungus on potato dextrose agar and other simulated mediums resulted in a reduced and markedly different production of bioactive metabolites.[16][17] Secondary metabolites were either absent or present in very different ratios, and in general showed significantly less potency in submerged cultures of Chaga.[18] Cultivated Chaga furthermore results in a reduced diversity of phytosterols, particularly lanosterol, an intermediate in the synthesis of ergosterol and lanostane-type triterpenes. This effect was partially reversed by the addition of silver ion, an inhibitor of ergosterol biosynthesis.[16]

    Additionally, the bioactive triterpene betulinic acid is completely absent in cultivated Chaga. In nature Chaga grows pre-dominantly on birches, and birch bark contains up to 22% of betulin. Betulin is poorly absorbed by humans, even when taken intravenously; its bioavailability is very limited. However, the Chaga mushroom converts betulin into betulinic acid, and many internet sources state Chaga's betulinic acid is bioavailable, even when taken orally. Unfortunately there is no research that confirms this claim.[19]


    Chaga on a birch tree
    Chaga is traditionally grated into a fine powder and used to brew a beverage resembling coffee or tea. For medicinal use, an extraction process is needed to make at least some of the bio-active components bioavailable.[20] These bio-actives are found in the mostly indigestible chitin cell walls of the chaga. Humans lack the enzyme chitinase, so cannot fully digest raw mushrooms or their derivatives, and the digestive process works too fast for the stomach acid to take effect. Scientific studies and research are in general also based on highly concentrated extracts, and traditional Russian usage is also based on a form of hot-water extraction (by preparing zavarka).

    Currently, three extraction processes are used, each with a different outcome.

    • Hot water extraction is the most common and the cheapest method. Ideally it should be performed under very high pressure (480 psi / 4.0 MPa); boiling will over time cause the bioactive beta-glucans to disintegrate, this is neutralized by performing this phase of the extraction process under high pressure.[21]
    All water-soluble components will be present in the resulting extract. Hot water extraction performed without high pressure can be compared to a traditional tea-making process; the therapeutic potential will be limited due to the damage caused by the high temperature, as described above. Water-insoluble components, such as phytosterols, betulinic acid and betulin, will be absent in a hot water extract. Several extraction rounds combined with modern pharmaceutical techniques such as alcohol precipitation as a final step can result in high levels of polysaccharides, up to almost 60%. The ß-D-glucans, the bio-active part of these polysaccharides, might add up to ±35% in a very pure extract.[22] Polyphenolic components are water-solubles and will also be present.

    • Ethanol or methanol extraction isolates the water-insoluble components, betulinic acid, betulin and the phytosterols. This extraction process is in general used as a second step after hot-water extraction, since ethanol alone will not break down chitin effectively - heat is essential.
    • Fermentation is the most time-consuming, so is the most expensive; this method is not used very often. Because fermentation methods are not standardized (many types of bacteria and fungi can be used in the process), the outcome is also not standardized.
    Combining the outcome of hot water and ethanol extraction yields a dual extract with all therapeutically interesting bioactives present in a bioavailable form. Cheap, mass-produced extracts are in general hot water, low percentage (4-20%) polysaccharide extracts with limited therapeutic value. The information on the supplements' label will usually reveal inclusion or exclusion of components. However, the majority of mushroom dietary supplements that are sold are non-extracted, being the cheapest option.[20] To achieve at least some therapeutic effects the consumer has to make a tea from it.


    Last edited by a moderator: Feb 26, 2016
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  2. chagaman

    chagaman Monkey+

  3. BJC628

    BJC628 Monkey+

    I gave this info to a dear friend who has cancer. Thanks for the timely information!
    oldman11 and Bear like this.
  4. D2wing

    D2wing Monkey+

    A friend, a woodsman from Northern MN, introduced me to Chaga 2 years ago. Since then I have been drinking small amounts in my coffee I have not been sick and I feel healthier. I am unable to take large amounts because it can cause bleeding in some people.
    oldman11 and Bear like this.
  5. vvpinkmonkay

    vvpinkmonkay Neophyte Monkey

    Chaga mushroom < omg why is this bold too cool. Anyway i was reading like u can just look it up on google its on the first page . anyways its basically the 'gift from god' and known to change sicense and cure diseases. My uncle is currently going through something very hard. does anyone here have any other experiences with this if you have tried it or do you know if u have to buy it ? how its taken?
    oldman11 likes this.
  6. Ganado

    Ganado Monkey+++

    Thread revival !!! Its my new religion!
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  7. Bishop

    Bishop Monkey+++

    They also use it as a tinder fungus to start fire with in fire piston.
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  8. Brokor

    Brokor Live Free or Cry Moderator Site Supporter+++ Founding Member

    Although I don't use chaga as a tinder primarily, it does hold an ember rather well. This may come in handy when transporting fire to another location, perhaps. Here's some pics of some chaga I have and use it in my tea on occasion. You may also boil the chaga and strain it to make a tea on its own, but it isn't flavorful. I use cinnamon and a little chaga sometimes and distribute this with my mini microplane grater...

    DSC00020.JPG DSC00019.JPG
    oldman11 likes this.
  9. Ganado

    Ganado Monkey+++

    @Brokor so you buy whole chunks of changa dried? and grate it? I just buy it powdered, so I'm wondering if it tastes different

    I use powdered mushroom in alot of soups and stews to add body

    I use changa in my coffee, it's a bit bitter but I'm ok with that for the 1st cup;)
    oldman11 and Gator 45/70 like this.
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