Nutritional Ingredient Analysis of Different Parts of Flammunlina velutipes
In this study, Flammunlina velutipes was used as the research object. The nutritional ingredients in upper fruiting bodies and stipe base of Flammunlina velutipes were analyzed and compared, so as to provide a theoretical basis for the rational exploitation and utilization of Flammulina velutipes scraps. The results showed that the contents of protein, total sugar, ash and fiber were significantly different between the two parts of Flammunlina velutipes ( P <0 . 05 ) , while there was no significant difference in fat content with low level. The contents of total sugar,ash and fiber in stipe base were higher than that in upper fruiting bodies. The contents of antioxidants vitamin C and polyphenol were rich and up to 0. 53 mg/g,0. 35 mg/g in upper fruiting bodies and 7. 38 mg/g,6. 88 mg/g in stipe base respectively. The upper fruiting bodies and stipe base of Flammulina velutipes all contained 47 kinds of minerals, including major common elements such as K,Na, Ca and Mg,as well as all kinds of microelements such as Zn,Fe,Mn and Se,which were good for human health. The contents of K,Ca,Mg,Mn elements were higher in stipe base than that in upper fruiting bodies. There were comprehensive amino acids in Flammunlina velutipes with total amino acids of 164 . 36 mg/g and 125 . 92 mg/g in upper fruiting bodies and stipe base respectively. Meanwhile,the proportions of essential amino acids in the total amino acids were 35. 10% and 32. 87% in upper fruiting bodies and stipe base respectively. Consequently,both the upper fruiting bodies and stipe base of Flammulina velutipes presented similarities of the categories of main nutritional ingredient, and contained high protein, low fat, rich polysaccharide, mineral substances and amino acids. Flammunlina velutipes had high nutritional value and good development prospects.