于修烛,张静亚,李清华,许春瑾,高锦明.基于近红外光谱的食用油酸价和过氧化值自动化检测[J].农业机械学报,2012,43(9):150-154,159.
Yu Xiuzhu,Zhang Jingya,Li Qinghua,Xu Chunjin,Gao Jinming.Automatic Determination of Acid Value and Peroxide Value of Edible Oils by Near-infrared Spectroscopy[J].Transactions of the Chinese Society for Agricultural Machinery,2012,43(9):150-154,159.
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基于近红外光谱的食用油酸价和过氧化值自动化检测   [下载全文]
Automatic Determination of Acid Value and Peroxide Value of Edible Oils by Near-infrared Spectroscopy   [Download Pdf][in English]
  
DOI:10.6041/j.issn.1000-1298.2012.09.028
中文关键词:  食用油  酸价  过氧化值  近红外光谱  自动化检测
基金项目:中央高校基本科研业务费专项(QN2009074);西北农林科技大学大型仪器设备新功能开发项目(DYSB090218)
作者单位
于修烛 西北农林科技大学 
张静亚 西北农林科技大学 
李清华 西北农林科技大学 
许春瑾 西北农林科技大学 
高锦明 西北农林科技大学 
中文摘要:为实现食用油酸价和过氧化值的自动化快速检测,以常见食用油为材料,利用近红外自动分析仪结合连续进样流通池,建立食用油酸价和过氧化值的定量模型并进行模型验证。结果表明:在波数范围为5500~4600cm-1时,光谱预处理选择(6524,4823)两点基线校正和标准正交变换,酸价定量模型验证相关系数和预测标准偏差分别为0.9873和0.114mg/g;在波数范围为6050~4450cm-1时,选择一阶求导和Norris导数平滑,过氧化值定量模型验证相关系数和预测标准偏差分别为0.9958和0.90mmol/kg;模型盲样验证效果良好,模型可行,通过近红外自动分析仪每小时可检测90个样品。
Yu Xiuzhu  Zhang Jingya  Li Qinghua  Xu Chunjin  Gao Jinming
Northwest A&F University;Northwest A&F University;Northwest A&F University;Northwest A&F University;Northwest A&F University
Key Words:Edible oils  Acid value  Peroxide value  Near-infrared spectroscopy  Automatic determination
Abstract:For automatic determination of acid value and peroxide value of edible oils, using edible oils as raw materials, calibrations were developed and validated for determination of acid value and peroxide value by near-infrared spectrometer with continuous samples injection cell. The correlation coefficient R and the root mean square errors of prediction (RMSEP) of the calibration for acid value were 0.9873 and 0.114mg/g in range of 5500~4600cm-1 with baseline correction point at 6524cm-1 and 4823cm-1 and standard normal variant (SNV). The R and RMSEP for peroxide value of calibration were 0.9958 and 0.90mmol/kg in range of 6050~4450cm-1 with first derivative and Norris filter. The results of blind samples validation were good, the calibrations were workable, throughput of 90 samples can be achieved per hour.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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