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Updated: Jun 22, 2026

Rapid High-throughput Species Identification of Botanical Material Using Direct Analysis in Real Time High Resolution Mass Spectrometry
Published on: October 2, 2016
Identification of the toxic trigger in mushroom poisoning
Masanori Matsuura1, Yoko Saikawa, Kosei Inui
1Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Kohoku-ku, Yokohama, Japan.
Abstract:
We have isolated the small, highly strained carboxylic acid cycloprop-2-ene carboxylic acid from the Asian toxic mushroom Russula subnigricans. This compound is responsible for fatal rhabdomyolysis, a new type of mushroom poisoning that is indicated by an increase in serum creatine phosphokinase activity in mice. We found that polymerization of the compound at high concentrations via ene reaction abolishes its toxicity.
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