近红外光谱法快速测定动植物油脂中游离脂肪酸含量
Rapid Determination of Free Fatty Acid in Animal and Vegetable Oil and Fat by Near-Infrared Spectrometry
摘 要
提出了近红外光谱法快速测定动植物油脂中游离脂肪酸含量的方法。采用化学方法获得动植物油脂中游离脂肪酸含量的基本参照数据,并通过近红外光谱分析结果结合偏最小二乘回归算法,建立牛羊油、棕榈仁油、蓖麻油中游离脂肪酸含量的校正模型,其决定系数分别为0.997 9,0.997 4,0.976 7,验证均方偏差分别为0.190%,0.083 4%,0.059 2%。方法用于动植物油脂样品的分析,所得预测值与化学法测定结果相符,测定值的相对标准偏差(n=10)均小于6%。
偏最小二乘回归法
游离脂肪酸
动植物油脂
Near-infrared spectrometry
Partial least squares regression method
Free fatty acid
Animal and vegetable oil and fat
Abstract
Near-infrared spectrometry was applied to the rapid determination of free fatty acid in animal and vegetable oil and fat. The basic reference values were obtained by chemical method. Combining the results obtained by near-infrared spectrometry with partial least squares regression method, the calibration models of tallow, palm kernel oil and castor oil were established with coefficients of determination of 0.997 9, 0.997 4 and 0.976 7, and mean square deviations of calibration of 0.190%, 0.083 4% and 0.059 2% respectively. The proposed method was applied to the analysis of samples of animal and vegetable oil and fat, giving results in consistency with the values obtained by chemical method with RSD′s (n=10) less than 6%.
中图分类号 O657.33
所属栏目 试验与研究
基金项目
收稿日期 2012/12/5
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备注吴晓红(1964-),女,上海人,高级工程师,主要从事化工品检测、实验室管理、技术性贸易措施的研究工作。
引用该论文: WU Xiao-hong,CHENG Yu-xiao,YANG Yong,ZHOU Yu-yan,Ma Teng-zhou,ZHANG Lin. Rapid Determination of Free Fatty Acid in Animal and Vegetable Oil and Fat by Near-Infrared Spectrometry[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2013, 49(9): 1025～1028
吴晓红,程欲晓,杨勇,周宇艳,马腾洲,张琳. 近红外光谱法快速测定动植物油脂中游离脂肪酸含量[J]. 理化检验－化学分册, 2013, 49(9): 1025～1028
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参考文献
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【4】于燕波,臧鹏,付元华,等.近红外光谱法快速测定植物油中脂肪酸含量［J］.光谱学与光谱分析, 2008,28(7):1554-1558.
【5】吴建国,石春海,张海珍.构建整粒油菜籽脂肪酸成分近红外反射光谱分析模型的研究［J］.光谱学与光谱分析, 2006,26(2):259-262.
【6】杨翠玲,陈文杰,张文学,等.近红外光谱和纸层析法分析单粒油菜籽脂肪酸的研究［J］.西北农业学报, 2005,14(6):72-77.
【7】AZIZIAN H, KRAMER J K G. A rapid method for the quantification of fatty acids in fats and oils with emphasis on trans fatty acids using Fourier transform near infrared spectroscopy (FT-NIR)［J］. Lipids, 2005,40(8):855-867.
【8】HOURANT P, BAETEN V, MORALES M T, et al. Oil and fat classification by selected bands of near-infrared spectroscopy［J］. Applied Spectroscopy, 2000,54(8):1168-1174.
【9】DOWNEY G, MCINTYRE P, DAVIES A N. Detecting and quantifying sunfloweroil adulteration in extra virgin olive oils from the eastern Mediterranean by visible and near-Infrared spectroscopy［J］. Journal of Agricultural and Food Chemistry, 2002,50(20):5520-5525.
【10】CHRISTY A, KASEMSUMRAN S, DU Y P, et al. The detection and quantification of adulteration in olive oil by near-infrared spectroscopy and chemometrics［J］. Analytical Sciences, 2004,20:935-940.
【11】CHE MAN Y B, MOH M H. Determination of free fatty acids in palm oilby near-infrared reflectance spectroscopy［J］. Journal of the American Oil Chemists Society, 1998,75(5):557-562.
【12】SATO T, KAWANO S, IWAMOTOM. Near infrared spectral patterns of fatty acid analysis from fats and oils［J］. Journal of the American Oil Chemists Society, 1991,68:827-833.
【2】LAFRANCE D, LANDS L C, HORNBY L, et al. Near-infrared spectroscopic measurement of lactate in human plasma［J］. Applied Spectroscopy, 2000,54(2):300-304.
【3】YILDIZ G, WEHLING R L, CUPPETT S L. Monitoring PV in corn and soybean oils by NIR spectroscopy［J］. Journal of the American Oil Chemists Society, 2002,79(11):1085-1089.
【4】于燕波,臧鹏,付元华,等.近红外光谱法快速测定植物油中脂肪酸含量［J］.光谱学与光谱分析, 2008,28(7):1554-1558.
【5】吴建国,石春海,张海珍.构建整粒油菜籽脂肪酸成分近红外反射光谱分析模型的研究［J］.光谱学与光谱分析, 2006,26(2):259-262.
【6】杨翠玲,陈文杰,张文学,等.近红外光谱和纸层析法分析单粒油菜籽脂肪酸的研究［J］.西北农业学报, 2005,14(6):72-77.
【7】AZIZIAN H, KRAMER J K G. A rapid method for the quantification of fatty acids in fats and oils with emphasis on trans fatty acids using Fourier transform near infrared spectroscopy (FT-NIR)［J］. Lipids, 2005,40(8):855-867.
【8】HOURANT P, BAETEN V, MORALES M T, et al. Oil and fat classification by selected bands of near-infrared spectroscopy［J］. Applied Spectroscopy, 2000,54(8):1168-1174.
【9】DOWNEY G, MCINTYRE P, DAVIES A N. Detecting and quantifying sunfloweroil adulteration in extra virgin olive oils from the eastern Mediterranean by visible and near-Infrared spectroscopy［J］. Journal of Agricultural and Food Chemistry, 2002,50(20):5520-5525.
【10】CHRISTY A, KASEMSUMRAN S, DU Y P, et al. The detection and quantification of adulteration in olive oil by near-infrared spectroscopy and chemometrics［J］. Analytical Sciences, 2004,20:935-940.
【11】CHE MAN Y B, MOH M H. Determination of free fatty acids in palm oilby near-infrared reflectance spectroscopy［J］. Journal of the American Oil Chemists Society, 1998,75(5):557-562.
【12】SATO T, KAWANO S, IWAMOTOM. Near infrared spectral patterns of fatty acid analysis from fats and oils［J］. Journal of the American Oil Chemists Society, 1991,68:827-833.
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