Oyster Mushrooms

   Grey Oyster                    Yellow Oyster                               Italian Oyster                                       Po Hu Oyster     

Oyster (Pleurotus) Mushroom Information

 

When someone sees the Oyster Mushroom for the first time they can be struck by both its beauty and its unique look.  These are some of the most beautiful and delicate mushrooms available.

yellow oyster

Oyster Mushrooms can be gray, brown, pale yellow, even blue or pink, with a velvety texture.  Up until 2011 we grew only the gray and a yellow oyster.  We have recently added the Po Hu and Italian varieties and are in the process of adding more.

The Oyster Mushrooms have a shelf life of about a week.   And an amazing array of Health Benefits.  The most important ones, in my opinion, are the amount of LE (oyster mushrooms are the highest known source!) & Potassium (the portabella have more potassium than a banana and the oyster contain more potassium than the portabella!) they contain and the benefits those things offer us.

This is by far my favorite mushroom with its mild salty flavor.  I often sautee them up with onions and melt some cheese on top to fill a home made gluten free wrap.  These are so yummy I have to keep it a secret that I'm cooking them or our daughter is there eating them out of the pan before I can serve them. 


How to prepare the Oyster Mushroom:  

Cut off the stem and discard. [The stem can be saute'd and used in sauces etc by pureeing in a blender or food processor.  However, it is really too firm to use otherwise.]

Saute' or stir-fry until edges become a crispy, golden brown. I use real butter and a cast iron skillet.

It goes very well with Italian dishes, stir fries, chicken, beef and fish... really with anything! It is also excellent grilled, barbecued and deep-fried.


 The Technical Stuff

Whats good for you that is in the Oyster Mushroom?

Polysaccharides: Beta-1,3-D-glucan, Pleuran

Pleureryn

L-Ergothioneine(LE), a naturally occurring antioxidant amino acid. LE is an essential amino acid, meaning that the body cannot produce it and must obtain it from outside sources. LE has a very high ORAC value (Oxygen Radical Absorbance Capacity) and is found in the human body in high levels in regions of high oxidative stress such as the kidneys, liver, and eyes. The Oyster mushrooms has recently been found to contain up to 40 times the amount of L-ergothioneine found in wheat bran, the food previously thought to contain the highest level of this important antioxidant (Dubost et al., 2005). Antioxidants such as LE are believed to reduce the risk of chronic disease by limiting damaging cell oxidation in the human body.

Chelated selenium. The mycelium of the Oyster mushroom have the ability to extract and concentrate high levels of selenium from its environment (Stajic et al., 2006). The selenium in the oyster is organically bound and much easier to absorb than inorganic selenium in most vitamin supplements. Selenium is another important antioxidant. Deficiencies of selenium have been associated with increased risk of cancer.

Lectins. Strong antitumor activity was observed when the oyster mushroom was included in the diet of mice. The tumor inhibition rate reached 79.4%. Against a mammary tumor system (MM-46) there was an 89.7% inhibition rate (Mori et al., 1986). Yoshioka et al. (1972) reported an acidic polysaccharide fraction of this mushroom showed a 95% tumor inhibition rate against sarcoma 180. Zusman et al. (1997), reported that when rats were fed corncobs partially colonized by Oyster mushroom, they were significantly protected from treatment with chemicals which otherwise induced colon cancer in rats who were fed corncobs without mycelium. A lectin isolated from the fruiting bodies of P. ostreatus demonstrated antitumor activity in mice bearing sarcoma and hepatoma (Wang et al., 2000).

Peptides: Pleurostrin

Oyster Mushrooms are used as an Anti-oxidant and Immunostimulant.

Other Medicinal Properties:

Oyster mushrooms produce a natural form of the drug Lovastatin® a drug used for treating high blood cholesterol.

Research on mice suggest that it may have anti-tumorial properties.

A beta glucan found in Oyster mushrooms, Pleuran, has anti-oxidant effects and may be useful in preventing some cancers from metastasising.

The fiber in oyster mushrooms appear to be helpful in promoting healthy bowel function.

Osteoperosis ~ Recent research suggests that extracts of Pleurotus eryngii (PEX) may have a strong effect on bone metabolism and the prevention of osteoporosis (Kim et al. 2006, Shimizu et. al 2006). Results of the research suggest that the beneficial effects on bone may be mediated by estrogen-like activity of compounds in the oyster mushrooms and may be useful in preventing bone loss caused by estrogen deficiency.


Spring 2011

We are in the process of adding some unique oyster varieties. 

We are now offering the Italian Oyster

Italian Oyster Mushroom

As well as the Po Hu Oyster Mushrooms

Po Hu Oyster Mushroom