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Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps

Ophiocordyceps sinensis has been utilized in China and adjacent countries for thousands of years as a rare functional food to promote health and treat diverse chronic diseases. In recent years, adulterants are usually identified in the processed products of wild O. sinensis. However, the effective a...

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Autores principales: Guo, Lian-Xian, Zhang, Gui-Wei, Li, Qing-Qing, Xu, Xiao-Ming, Wang, Jiang-Hai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278644/
https://www.ncbi.nlm.nih.gov/pubmed/30380635
http://dx.doi.org/10.3390/molecules23112804
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author Guo, Lian-Xian
Zhang, Gui-Wei
Li, Qing-Qing
Xu, Xiao-Ming
Wang, Jiang-Hai
author_facet Guo, Lian-Xian
Zhang, Gui-Wei
Li, Qing-Qing
Xu, Xiao-Ming
Wang, Jiang-Hai
author_sort Guo, Lian-Xian
collection PubMed
description Ophiocordyceps sinensis has been utilized in China and adjacent countries for thousands of years as a rare functional food to promote health and treat diverse chronic diseases. In recent years, adulterants are usually identified in the processed products of wild O. sinensis. However, the effective adulteration examination has to be additionally performed except their routine test, and accordingly is time- and money-consuming. Recently, arsenic determination has become a necessary test for confirming whether the concentrations of inorganic arsenic are over the O. sinensis limit. In this work, the contents of total arsenic and As species in cultivated O. sinensis, Cordyceps militaris, and other edible fungi were determined by ICP-MS and HPLC-ICP-MS. The results suggest that the As speciation exhibits a species-specific behavior, and accompanies the effect of the As background. The proportions of unknown organic As and contents of total As may be considered as sensitive markers for discriminating wild O. sinensis. This result provides a novel clue for discriminating wild and artificially cultivated mushrooms/their products, with emphasis on arsenic markers for authenticating wild O. sinensis.
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spelling pubmed-62786442018-12-13 Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps Guo, Lian-Xian Zhang, Gui-Wei Li, Qing-Qing Xu, Xiao-Ming Wang, Jiang-Hai Molecules Article Ophiocordyceps sinensis has been utilized in China and adjacent countries for thousands of years as a rare functional food to promote health and treat diverse chronic diseases. In recent years, adulterants are usually identified in the processed products of wild O. sinensis. However, the effective adulteration examination has to be additionally performed except their routine test, and accordingly is time- and money-consuming. Recently, arsenic determination has become a necessary test for confirming whether the concentrations of inorganic arsenic are over the O. sinensis limit. In this work, the contents of total arsenic and As species in cultivated O. sinensis, Cordyceps militaris, and other edible fungi were determined by ICP-MS and HPLC-ICP-MS. The results suggest that the As speciation exhibits a species-specific behavior, and accompanies the effect of the As background. The proportions of unknown organic As and contents of total As may be considered as sensitive markers for discriminating wild O. sinensis. This result provides a novel clue for discriminating wild and artificially cultivated mushrooms/their products, with emphasis on arsenic markers for authenticating wild O. sinensis. MDPI 2018-10-29 /pmc/articles/PMC6278644/ /pubmed/30380635 http://dx.doi.org/10.3390/molecules23112804 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Guo, Lian-Xian
Zhang, Gui-Wei
Li, Qing-Qing
Xu, Xiao-Ming
Wang, Jiang-Hai
Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps
title Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps
title_full Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps
title_fullStr Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps
title_full_unstemmed Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps
title_short Novel Arsenic Markers for Discriminating Wild and Cultivated Cordyceps
title_sort novel arsenic markers for discriminating wild and cultivated cordyceps
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278644/
https://www.ncbi.nlm.nih.gov/pubmed/30380635
http://dx.doi.org/10.3390/molecules23112804
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