摘要
对不同生长年限的林下山参96支(其中,十五年生24支,十二年生72支)和园参177支。采集近红外光谱后,应用主成分分析-马氏距离法进行判别分析。采用原始光谱,经过预处理后,在全光谱范围内分别选择合适的主成分数,对林下山参和园参以及不同生长年限的林下山参分别建立了判别分析模型。所建立的两组模型对验证集的正确判别率均为100%。表明该方法准确可靠、快速无损,可实际用于林下山参的质量控制。
Mountain cultivation ginseng （MCG） and garden cultivation ginseng （CgZG） were identified by near infrared spectros- copy, so were MCG of different growth years. 96 MCG samples of different growth years, including 24 Of fifteen years and 72 of ten years, and 177 GCG samples were collected. After the near infrared spectra of these samples were collected, discriminant analysis was used to distinguish MCG and GCG, so was MCG of different years. After the original spectra were pretreated, dis- criminant analysis models of MCG and GCG, MCG of different growth years were developed respectively with selected principal component numbers in full spectra region. The correct discrimination rate of two groups of model was both 100 ~. The proposed methods are accurate, fast and nondestructive, and can be applied to the quality control of MCG. It has an important significance for building market image of MCG.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2012年第7期1801-1805,共5页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金面上项目(81073041)
高等学校博士学科点专项科研基金项目(20100013120010)资助
关键词
近红外(NIR)光谱
林下山参(MCG)
园参(GCG)
不同生长年限
判别分析
无损识别
Near infrared （NIR） spectroscopy
Mountain cultivation ginseng （MCG）
Garden cultivation ginseng （CaEG）
Different growth years
Discriminant analysis
Non-destructive identification
