Tuber melanosporum

Harki, E., Talou, T., and Dargent, R., Purification, characterisation and analysis of melanin extracted from Tuber melanosporum Vitt., Food Chem., 58, 69, 1997. 

The volatile constituents of canned Black Perigord Truffles (Tuber Melanosporum) were analysed by dynamic headspace concentration gas chromatography - mass spectrometry. A total of 36 compounds were identified and described for the first time as canned black truffle aroma constituents. The modification of flavor and the possible formation of the compounds due to the heating treatment are discussed. 

Black Perigord truffles (Tuber Melanosporum) are underground mushrooms that grow in symbiosis with certain trees, especially... 

Material. Fresh Black Perlgord Truffles ( Tuber Melanosporum) were purchased by Pebeyre Ltd.(Cahors, France), a company specialized in truffle marketing. These truffles were collected mainly in the South East of France. They were fully ripe (3) and released their... 

A typical total ion current chromatogram of the Tenax trapped canned black truffle (Tuber Melanosporum) juice volatiles is shown in Figure 2. The compounds identified by GC-MS are listed in Table I in the order of elution from the GC column with their characteristic mass spectral data. The identification of these compounds was based on comparison of the mass spectra obtained with those stored in the NIH/EPA library and also with those of authentic compounds. Moreover, an additional search of published standard mass spectra to confirm the identity of unknowns was undertaken (16). 

Figure 2. Reconstructed capillary GC-total ion current chromatogram of headspace volatiles of canned black truffle (Tuber Melanosporum) juice.

Talou, X, Delmas, M., Gaset, A. (1987). Principal constituents of black truffle Tuber melanosporum) aroma. J. Agric. Food Chem., 35, 774-777. 

The volatile compounds in the atmosphere of cold stored Black Perigord Truffles (Tuber Melanosporum) were adsorbed onto a Tenax trap by means of a vacuum pump. The efficiency of the sampling method was sensorially validated. The volatiles eluted from the trap by heat desorption were analysed by capillary gas chromatography - mass spectrometry. A total of 26 compounds was identified. Their contribution to the final aroma impression was discussed. 

Table I. Volatiles identified in atmosphere of cold storage for Black Truffles (Tuber Melanosporum)...

The truffles are perhaps the most famous, and certainly the most expensive, of the edible mushrooms, being avidly sought-out for use in gourmet cooking, particularly in France. The best-known species of truffle is Tuber melanosporum, which is commonly mycorrhizal on species of oak, birch, and beech Quercus, Betula, snAFagus spp., respectively). Other Eurasian species of truffle include Tuber aestivum and T. brumale, while T... 

Sejalon-Dehnas N, Roux C, Martins M, KuUfaj M, Becard G, Dargent R (2000). Molecular tools for the identification of Tuber melanosporum in agroindustry. J. Agric. Food Chem., 48... 

Truffle Tuber melanosporum Ascomycetes/Tuberales Steamed, fried, dried. 

The most famous ones are the French black truffles, Tuber melanosporum, and they have to be searched out. 

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