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精料補充料中肉骨粉的顯微近紅外成像識別
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國家自然科學基金資助項目(31072062、QSAFFE)、國際科技合作項目(2010DFA34540)、歐盟第七框架協(xié)議項目(FP7-265702)和中國與比利時科技合作項目(國科外函[2010]177號)


Discrimination of Meat and Bone Meal in Concentrate Supplement by Near-infrared Microscopic Imaging
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    摘要:

    探討了利用顯微近紅外成像技術(shù)識別精料補充料中肉骨粉的可行性。分別采集奶牛精料補充料和肉骨粉樣品,制備沉淀顆粒,規(guī)則排列于聚四氟乙烯(PTFE)背景底板上,進行顯微近紅外圖像采集。設(shè)置像素點大小為50 μm×50 μm,采集面積為5000 μm×5000 μm,100×100 個像素(共計10000條光譜)。光譜范圍為7800~4000 cm-1,光譜分辨率為8 cm-1。采用主成分分析和模糊聚類分析,對顯微近紅外圖像數(shù)據(jù)集進行信息提取與處理。結(jié)果顯示,肉骨粉與精料補充料可依據(jù)在圖像上不同的主成分得分進行區(qū)分;在主成分分析的基礎(chǔ)上,通過模糊聚類方法可以進一步細化樣本類別。研究表明,顯微近紅外成像方法可應(yīng)用于肉骨粉快速檢測中。

    Abstract:

    The possibility of using near-infrared microscopic imaging to discriminate meat and bone meal (MBM) in concentrate supplement was investigated. Samples of MBM and dairy concentrate supplement were collected, and the sediment particles were prepared and arranged on polytetrafluoroethene (PTFE) background plate for near infrared imaging. Image size was 5000 μm×5000 μm, using 50 μm pixel resolution (10000 spectra were obtained). Each spectrum was across the wavelength range 7800~4000 cm-1 , with 8 cm-1 data resolution. Both principal component analysis and fuzzy clustering analysis were used to extract and present relevant information from NIR microscopic imaging data sets. The results showed that MBM could be distinguished from dairy concentrate supplement by the scores from principal component analysis, and the samples were subdivided by using fuzzy C-means clustering based on the PCA analysis. It is demonstrated that NIR microscopic imaging approach is one of the most promising methods for detecting MBM. 

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姜訓鵬,楊增玲,韓魯佳,劉賢.精料補充料中肉骨粉的顯微近紅外成像識別[J].農(nóng)業(yè)機械學報,2011,42(7):155-159. Jiang Xunpeng, Yang Zengling, Han Lujia, Liu Xian. Discrimination of Meat and Bone Meal in Concentrate Supplement by Near-infrared Microscopic Imaging[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(7):155-159.

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