About Yarsagumba
Ophiocordyceps sinensis (formerly known as Cordyceps sinensis) is an entomopathogenic fungus (a fungus that grows on insects) found in mountainous regions of Nepal and Tibet. It parasitizes larvae of ghost moths and produces a fruiting body which used to be valued as a herbal remedy. However, it usually contains high amount of arsenic and other heavy metals so that it is potentially toxic and its manufacture and sales were strictly regulated by CFDA (China Food and Drug Administration) in 2016.
O. sinensis parasitizes the moths of the genus Thitarodes in the ghost moth family, Hepialidae; specifically species from the Tibetan Plateau, and the Himalayas. The fungus germinates in the living larva, kills and mummifies it, and then a dark brown stalk-like fruiting body which is a few centimeters long emerges from the corpse and stands upright.
It is known in English colloquially as caterpillar fungus, or by its more prominent names yartsa gunbu (Tibetan: དབྱར་རྩྭ་དགུན་འབུ་, Wylie: dbyar rtswa dgun 'bu, literally "winter worm, summer grass"), or dōng chóng xià cǎo (Chinese: 冬虫夏草).
O. sinensis is classified as a medicinal mushroom, and its use has a long history in traditional Chinese medicine as well as traditional Tibetan medicine. The hand-collected, intact fungus-caterpillar body is valued by herbalists as medicine, and because of its cost, its use is also a status symbol.
This fungus is not yet cultivated commercially, despite the fact that several fermentable strains of Ophiocordyceps sinensis have been isolated by Chinese scientists. Overharvesting and overexploitation have led to the classification of O. sinensis as an endangered species in China. Additional research needs to be carried out in order to understand its morphology and growth habits for conservation and optimum utilization.
Comments
Post a Comment