The study of different Ganoderma species using SEM and GFAAS technologies

UM > Institute of Chinese Medical Sciences

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	The study of different Ganoderma species using SEM and GFAAS technologies
	Guo, Y.; Ye, Q.; Qiong, L.; Peng, C.; Wang, Y. T.; Guo, L.; Lin, L.
	2014-10-01
Source Publication	28th International Symposium on the Chemistry of Natural Products Committee
Abstract	Ganoderma, Ling-zhi in Chinese, is a famous medicinal fungus in China and is dated back to the ancient medical book: Shen Nong Ben Cao from thousands years ago. There are about 100 species of Ganoderma distributed throughout China, but only 2 species are recorded in Pharmacopoeia of China 2010. Most of previous work focuses on organic components from Ganoderma, such like polysaccharides and triterpenoids1,2. It is reported that Selenium (Se) has antitumor, immunity-modulating and antioxidant effects, which are perfectly matched with the medicinal functions of Ling-zhi3. Thus, we hypothesize micronutrients in Ganoderma play important role in its medicinal use. We collected 7 different species of Ganoderma, including: G. lucidum, G. tsugae, G. subtornatum, G. parviungulatum, G. Leucophaeum, G. applanatum and G. tornatum, and compared their morphology using the scanning electron microscope (SEM). We found the SEM is an effective method to distinguish G. Lucidum from other species (Fig. 1). We further examine the inorganic elements: heavy metal elements and the essential micronutrient, using the graphite furnace atomic absorption spectrometry (GFAAS). Compared to the WHO limit criterion, we found the contents of heavy metals Cu and Pb met the standard, while the Cd did not. And the beneficial micronutrient Se was much higher than the average level (0.5-2 ppm). Taken together, our study found the content micronutrient Se is pretty high in Ganoderma, which might represent its antitumor, immunity-modulating and antioxidant activities. The current quality control method of Ganoderma should take the inorganic elements into account.
Keyword	Ganoderma SEM GFAAS
Language	英語English
The Source to Article	PB_Publication
PUB ID	36311
Document Type	Conference paper
Collection	Institute of Chinese Medical Sciences
Corresponding Author	Lin, L.
Recommended Citation GB/T 7714	Guo, Y.,Ye, Q.,Qiong, L.,et al. The study of different Ganoderma species using SEM and GFAAS technologies[C], 2014.
APA	Guo, Y.., Ye, Q.., Qiong, L.., Peng, C.., Wang, Y. T.., Guo, L.., & Lin, L. (2014). The study of different Ganoderma species using SEM and GFAAS technologies. 28th International Symposium on the Chemistry of Natural Products Committee.

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