Taxonomy of Amanita mushrooms by pattern recognition of amino acid chromatographic data

White, Robert L.; Wentzell, Peter D.; Beasy, Mark A.; Clark, Debra S.; Grund, D. W.

doi:10.1016/0003-2670(93)80446-r

Cited by 10 publications

(11 citation statements)

References 10 publications

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“…If we compare S. granulatus samples from diverse geographical origins ( Table 2), we can see that this species follows a qualitative profile composed of oxalic, aconitic, citric, ketoglutaric, malic, quinic, ascorbic, succinic, shikimic, and fumaric acids, with the exceptions of the samples from Macedo de Cavaleiros (samples [21][22][23], in which ketoglutaric acid does not appear, and that from Vila Flor (sample 25), which does not present ketoglutaric, ascorbic, and shikimic acids. For S. granulatus samples from Vinhais and Vila Flor (samples 24A, 24B, 24C, and 25), the pair malic plus quinic acids presented the highest amounts, corresponding to ca.…”

Section: Resultsmentioning

confidence: 99%

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Contents of Carboxylic Acids and Two Phenolics and Antioxidant Activity of Dried Portuguese Wild Edible Mushrooms

Ribeiro

Rangel

Valentão

et al. 2006

J. Agric. Food Chem.

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The organic acids and phenolics compositions of nine wild edible mushrooms species (Suillus bellini, Tricholomopsis rutilans, Hygrophorus agathosmus, Amanita rubescens, Russula cyanoxantha, Boletus edulis, Tricholoma equestre, Suillus luteus, and Suillus granulatus) were determined by HPLC-UV and HPLC-DAD, respectively. The antioxidant potential of these species was also assessed by using the DPPH • scavenging assay. The results showed that all of the species presented a profile composed of at least five organic acids: oxalic, citric, malic, quinic, and fumaric acids. In a general way, the pair of malic plus quinic acids were the major compounds. Only very small amounts of two phenolic compounds were found in some of the analyzed species: p-hydroxybenzoic acid (in A. rubescens, R. cyanoxantha, and T. equestre) and quercetin (in S. luteus and S. granulatus). All of the species exhibited a concentration-dependent scavenging ability against DPPH • . T. rutilans revealed the highest antioxidant capacity.

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Section: Resultsmentioning

confidence: 99%

“…For A. rubescens, previous works concerned the phallotoxins (19), the accumulation of several heavy metals and lanthanides (20), the taxonomy (21), and the toxic effects caused by a hemolytic protein from this species (22).…”

Section: Introductionmentioning

confidence: 99%

Contents of Carboxylic Acids and Two Phenolics and Antioxidant Activity of Dried Portuguese Wild Edible Mushrooms

Ribeiro

Rangel

Valentão

et al. 2006

J. Agric. Food Chem.

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“…The use of chemical composition [14][15][16][17][18][19][20] and/or DNA analysis [21][22][23][24][25] of species to its identification and classification has already been applied in the study of mushrooms. Although a large number of mushrooms' metabolites have been identified and characterized, few studies regarded the chemotaxonomic importance/utility of these molecules.…”

Section: Introductionmentioning

confidence: 99%

“…Even though, different groups of molecules have been analyzed with chemotaxonomical purposes (e.g. amino acids [20] and fatty acids [19]), DNA and secondary metabolites (e.g. pigments [16,17] and volatiles [18]) are the most used in this context [15].…”

Section: Introductionmentioning

confidence: 99%

Non-targeted and targeted analysis of wild toxic and edible mushrooms using gas chromatography–ion trap mass spectrometry

Carvalho

Bastos

et al. 2014

Talanta

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Mushrooms are known all over the world both due to the remarkable gastronomic value of some species and for severe intoxications mediated by other species that are frequently difficult to distinguish from the edible ones, by the common user. Therefore, it is important to develop strategies to discover molecules that can identify mushroom species. In the present work, two GC-MS methodologies were applied in the chemical characterization of 22 mushroom species (12 edible, 3 toxic and 7 potentially toxic) - a multi-target procedure to simultaneously determine amino acids (AA), fatty acids (FA) and sterols by previous derivatization procedure with MSTFA, and a Head Space-Solid Phase Microextraction method to determine volatiles. For both methods, two approaches to data analysis were used: (I) targeted analysis, to identify and quantify AA, FA sterols and volatiles; (II) untargeted analysis, including Principal Component Analysis and Partial Least Square Discriminant Analysis, in order to identify metabolites/metabolite pattern with potential species identification and/or differentiation. Multi-target experiment allowed the identification and quantification of twenty one primary metabolites (9 AA, 11 FA and 1 sterol). Furthermore, through untargeted data analysis, it was possible to identify a 5-carbon sugar alcohol structure molecule, which was tentatively identified as xylitol or adonitol, with potential to be a species-marker of the edible Suillus bovinus mushrooms. Volatile profiling studies resulted in the identification of the main volatiles in mushrooms. Untargeted analysis allowed the identification of 6 molecules that can be species- or genus-specific: one secondary metabolite specific to the edible species Lycoperdon perlatum, an ester of hexanoic acid, tentatively identified as allyl or vinyl caproate; and five other secondary metabolites, whose identification was not achieved, which were only detected in Lactarius aurantiacus specimens (edibility/toxicity unknown).

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“…Effective statistical methods are able to reveal features that allow the establishment of associations among samples of a common origin or of a similar quality. In particular, multivariate analysis has been applied to differentiate Chinese tea (Lin et al, 1987), wild oysters (Favreto et al, 1991), spirits (Tetsuo, 1991), apricot pure ´es (Parolari et al, 1992), Italian mandarin (Campisi et al, 1995), mushrooms (White et al, 1993), and wines (Ortiz et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

New Contribution to the Chemometric Characterization of Almond Cultivars on the Basis of Their Fatty Acid Profiles

Carratalá

Garcia-Lopez

Berenguer-Navarro

et al. 1998

J. Agric. Food Chem.

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Eight minor fatty acids (C10:0, C12:0, C14:0, C15:0, C17:0, C17:1, C18:3, and C20:0) have been determined in the kernel of 19 almond cultivars grown in the same field and year, using gas chromatography. Submission of minor fatty acids along with the major ones (C16:0, C16:1, C18:0, C18:1, and C18:2) to multivariate techniques (principal component analysis, cluster analysis, discriminant analysis) contributes to characterizing this set. In comparison to previous studies, the minor fatty acids enable further subdivision within the group of the Mediterranean almonds. The American cultivar Titan, though classified near the cultivars Wavona, Genco and Tuono, presents the fatty acid profile most similar to the Spanish cultivars. The Spanish cultivar Marcona, which is classified with the Spanish Ramillete, Cebas, Desmayo Largueta, and Del Cid and the American Non Pareil, shows some particular features. Discriminant analysis was applied to the four groups previously established by cluster analysis. Keywords: Chemometrics; almond; fatty acids; characterization; gas chromatography; multivariate techniques

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Taxonomy of Amanita mushrooms by pattern recognition of amino acid chromatographic data

Cited by 10 publications

References 10 publications

Contents of Carboxylic Acids and Two Phenolics and Antioxidant Activity of Dried Portuguese Wild Edible Mushrooms

Contents of Carboxylic Acids and Two Phenolics and Antioxidant Activity of Dried Portuguese Wild Edible Mushrooms

Non-targeted and targeted analysis of wild toxic and edible mushrooms using gas chromatography–ion trap mass spectrometry

New Contribution to the Chemometric Characterization of Almond Cultivars on the Basis of Their Fatty Acid Profiles

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