Content Comparison of Polysaccharides and Amino Acids in Boletus Albus,Tuber Magnatum and Tricholoma Matsutake
In this study,the dried slices of Boletus albus,Tuber magnatum and Tricholoma matsutake were used as research objects.The contents of polysaccharides and amino acids,and the types of amino acids in the three kinds of edible mushrooms contain were determined and compared by phenol sulfuric acid method and phenyl isothiocyanate derivatization method,respectively.The results indicated that the polysaccharide contents in Boletus albus,Tuber magnatum and Tricholoma matsutake were 3.739%,2.739%,and 4.378%(in mass fraction),and the total amino acid contents were 124.83,88.76,and 33.29 mg/g,respectively.All three kinds of edible mushrooms contained 17 free amino acids such as lysine(Lys),but the content of the same amino acid varied greatly among them.There are certain differences in polysaccharide and amino acid content among three different varieties of rare edible mushrooms,but overall,their polysaccharide contents are relatively high,and their amino acid types are complete and rich.
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