粮食与饲料工业
糧食與飼料工業
양식여사료공업
CEREAL & FEED INDUSTRY
2014年
12期
60-63
,共4页
稻谷%近红外漫反射光谱%水分%粗蛋白质%直链淀粉%胶稠度%偏最小二乘法
稻穀%近紅外漫反射光譜%水分%粗蛋白質%直鏈澱粉%膠稠度%偏最小二乘法
도곡%근홍외만반사광보%수분%조단백질%직련정분%효주도%편최소이승법
paddy rice%near infrared spectroscopy%moisture%crude protein%amylose%adhesive strength%partial least squares
采用DA7200型二极管阵列近红外光谱仪对江西地区的284份稻谷样品进行光谱采集,同时按照国家标准方法对试验样品进行化学分析检验。在化学分析检验的基础上,采用偏最小二乘法建立分析模型,并对其准确性进行了评价探讨。结果显示,采用偏最小二乘法所建立的定量分析模型相关性较高。同时,另选取30份样品进行模型验证,其相关系数和预测均方根误差均符合国家标准方法要求,因此近红外漫反射光谱法可以用于稻谷质量评定中的快速无损检测。
採用DA7200型二極管陣列近紅外光譜儀對江西地區的284份稻穀樣品進行光譜採集,同時按照國傢標準方法對試驗樣品進行化學分析檢驗。在化學分析檢驗的基礎上,採用偏最小二乘法建立分析模型,併對其準確性進行瞭評價探討。結果顯示,採用偏最小二乘法所建立的定量分析模型相關性較高。同時,另選取30份樣品進行模型驗證,其相關繫數和預測均方根誤差均符閤國傢標準方法要求,因此近紅外漫反射光譜法可以用于稻穀質量評定中的快速無損檢測。
채용DA7200형이겁관진렬근홍외광보의대강서지구적284빈도곡양품진행광보채집,동시안조국가표준방법대시험양품진행화학분석검험。재화학분석검험적기출상,채용편최소이승법건립분석모형,병대기준학성진행료평개탐토。결과현시,채용편최소이승법소건립적정량분석모형상관성교고。동시,령선취30빈양품진행모형험증,기상관계수화예측균방근오차균부합국가표준방법요구,인차근홍외만반사광보법가이용우도곡질량평정중적쾌속무손검측。
284 samples of paddy rice in Jiangxi,China,were collected by near-infrared spectroscopy DA7200.And the chemi-calcompositionanalysiswasconductedinlinewiththerequirementofrelevantnationalstandardmethods.Basedonthechemi-calanalysis,ananalyticalmodelwasestablishedbypartialleastsquares(PLS)method.Andtheaccuracyofthemodelwas verified afterwards.As a result,higher correlation was found in the quantitative analysis models developed by PLS.Another 30 selected samples were tested by the model.The result indicated that both the correlation coefficient and root mean square error prediction was able to meet the relevant national standards'requirements.In this regard,the near-infrared diffuse reflectance spectroscopy is available to the rapid non-destructive testing for quality assessment of the paddy rice.