Cordyceps
John Holliday, Matt Cleaver, Mojca Tajnik, JosephM. Cerecedes, and Solomon P.Wasser
June 1, 2010
BACKGROUND
Diversity and Artificial Cultivation
 There are currently more than 680 documented species
 of Cordyceps, found on all six inhabited continents and in
 many climatic zones and habitats, and occurring parasitically
 or commensally with a range of hosts (2–3). Due
 to the rarity and high prices of the wild collected variety,
 attempts have long been made to cultivate C. sinensis. By
 the mid 1980s, the majority of C. sinensis available in the
 world’s marketplace was artificially cultivated (4).
 Many companies now produce artificially cultivated
 C. sinensis products, both from the mycelium as well as
 from the fruit bodies. The increase in supply has given
 rise to variations in purity and quality, creating a situation
 in which there are a large number of counterfeit and
 adulterated products being sold (3). Recently, there have
 been introduced, new methods for assaying the quality of
 Cordyceps spp. products (5). The large variations in quality
 found in cultivated C. sinensis has lead many consumers
 to believe the wild collected variety is medicinally better
 than the cultivated type. But with new advances in
 biotechnology, this is rapidly changing (6).
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