Shin Kurogochi

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A selective and speedy LC-MS/MS method was developed to determine six trichothecene mycotoxins (nivalenol, deoxynivalenol, fusarenon X, 15-acetyldeoxynivalenol, 3-acetyldeoxynivalenol, and T-2 toxin) in rice medium where Fusarium graminearum were cultivated for in vitro tests. The analytes were extracted from the rice medium with acetonitrile/water (85/15,(More)
The major endogenous gibberellin (GA) in shoots, roots and ears of the rice plant, Oryza sativa L. japonica cv. Nihonbare, was identified as GA19 by combined gas liquid chromatography-mass spectrometry (GC-MS) and GC-selected ion current monitoring (GC-SICM). Another GA present in these tissues in small quantity was tentatively identified as GA1 by GC-SICM,(More)
performed. According to Lukas,2) sorbic acid is decomposed by Aspergillus niger mainly to CO2 and H2O, and partly to methyl ketones. Rehm et al.3) stated that Asp. niger and Pseudomonas fluorescens metabolized the acid in a similar way to fatty acids. Marth et al.4) reported the conversion of sorbic acid into 1, 3-pentadiene by Penicillium sp. It has also(More)
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