摘要
采用微波消解-电感耦合等离子体发射光谱法测定5个产地皱盖疣柄牛肝菌中10种矿质元素含量,并用SPSS软件进行方差分析和主成分分析。结果显示:该方法标准物质(GBW 07605)回收率在91%~101%之间,检出限在0.000 1~0.616 5 mg/kg范围,表明该方法准确、可靠;皱盖疣柄牛肝菌中Mg、Cu、Ca、Na、Zn等矿质元素的含量较高,不同产地皱盖疣柄牛肝菌中矿质元素含量具有差异;主成分分析的前3个主成分累积贡献率达到87.87%,能表达大部分信息,主成分综合得分可以反映出不同产地皱盖疣柄牛肝菌对10种矿质元素的富集情况。
The contents of 10 mineral elements in Leccinum rugosiceps from five regions were determined by microwave digestion-inductively coupled plasma-atomic emission spectrum(ICP-AES), and the obtained data were analyzed by analysis of variance(ANOVA) and principal component analysis(PCA) using the SPSS software. The results showed that recovery rates from tea standard(GBW 07605) ranged from 91% to 101% and the detection limits were 0.000 1–0.616 5 mg/kg. Mg, Cu, Ca, Na and Zn were more abundant in Leccinum rugosiceps. However, there were significant differences among mushroom samples collected from different regions. PCA showed that the cumulative contribution rate of the first three principal components was 87.87%, which could express most information. Principal component comprehensive scores could reflect the enrichment levels of ten mineral elements in Leccinum rugosiceps from different origins.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2014年第24期119-122,共4页
Food Science
基金
国家自然科学基金地区科学基金项目(31260496
31160409)
云南省自然科学基金项目(2011FB053
2011FZ195)
云南省教育厅科学研究基金项目(2012Y380
2013Z074)
关键词
电感耦合等离子体原子发射光谱
微波消解
皱盖疣柄牛肝菌
矿质元素
主成分分析
inductively coupled plasma-atomic emission spectrum(ICP-AES)
microwave digestion
Leccinum rugosiceps
mineral elements
principal component analysis(PCA)
