LI Qiang, LI Xiao-lin, HUANG Wen-li, XIONG Chuan, YANG Zhi-rong, ZHENG Lin-yong
In order to understand the differences in nutrition of Tricholoma matsutake from seven different places in Sichuan Province,China,we measured the content of protein,fat,fiber,mineral elements,vitamin B,and amino acids of T. matsutake fruit bodies according to the national food sanitation standard. The clustering analysis of these T.matsutake were completed by the software SPSS. Furthermore,the nutrition of T. matsutake in Sichuan was compared with the others from Congqing,Yunnan,Tibet and Heilongjiang. The results indicated that the average protein of T.matsutake from Sichuan was 21. 09%. In addition,all of the T. matsutake had low fat content with average 3. 28%.The average content of fiber was 18. 28%. The content of calcium and iron was relatively high( average content with249. 21 mg /kg and 880 mg /kg,respectively). The mineral elements content of T. matsutake varied greatly in different region. For example,the calcium content of fruit bodies from Mianning was more than 700% of which from Huidong. While,the iron content of fruit body from Yanbian was more than 600% of which from Huidong. The T. matsutake in all regions could be divided into two groups. The T. matsutake from Huidong,Mianning,Muli and Yanyuan were clustered in one group indicting they had high content of protein and fat. While the T. matsutake from Xiaojin,Yanbian and Yajiang were clustered into another group indicting that they had high content of fiber and mineral elements. The results showed the quality of T. matsutake in Sichuan was better than which in other places. In addition,the nutrients and mineral elements content of T. matsutake could be affected by environmental and soil conditions.
