Molecular Identification and Nutrients Composition Analyses of Two Wild Boletaceae
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Abstract:
The fruiting bodies of two wild Boletaceae Baicong and Hongcong grown in Xingyi were subjected identification by molecular biology tools. Based on the international general protein assessment model, the protein nutrition value of the two wild Boletaceaes was examined and compared with the data of Xerocomus spadiceus, Leccinum aurantiacum, and Boletus griseusin literature. The results showed that the scientific name of Baicongis Boletus roseoflavus, and the scientific name of Hongcong is Lanmaoa asiatica. The main nutritional components (g/100 g) of the Boletus roseoflavus fruiting body were: crude protein 46.20, crude fat 2.0, crude fiber 15.0, crude polysaccharide 4.70, soluble sugar 9.60; total essential amino acids 11.27, total amino acids 27.80, and total flavor amino acids 10.84. The main nutritional components of the Lanmaoa asiatica fruiting body were: crude protein 56.0, crude fat 2.0, crude fiber 17.0, crude polysaccharide 7.20, soluble sugar 7.60; total essential amino acids 13.76, total amino acids 33.40, and total flavor amino acids 13.04. The E/N ratios of Boletus roseoflavus and Lanmaoa asiatica were 0.68 and 0.70, respectively, with their E/E+N ratios being 40.58% and 41.20%, respectively. Both the total amounts of essential amino acids meet the FAO/WHO standard model, with a balanced nutritional composition and abundant amounts of amino acids. Both fungi had an essential amino acid index (EAAI) of 1.33, indicating high-quality protein sources.
