向日葵籽仁脂肪和脂肪酸含量近红外光谱模型的建立

周菲, 王文军, 刘岩, 马军, 王静, 吴立仁, 关洪江, 黄绪堂

Establishment of Near-Infrared Spectroscopy Model for the Contents of Fat and Fatty Acids in Sunflower Husked Seeds

Zhou Fei, Wang Wenjun, Liu Yan, Ma Jun, Wang Jing, Wu Liren, Guan Hongjiang, Huang Xutang

表3 10份材料化学值与近红外预测值比较

Table 3 Comparison of the chemical values and the predicted values of near-infrared of ten materials %

成分Ingredient 1 2 3 4 5 6 7 8 9 10 脂肪Fat 化学值Chemical value 42.35 50.47 48.22 55.67 44.58 50.27 49.84 53.16 40.38 45.72 预测值Predicted value 42.88 52.72 49.93 54.19 42.8 52.88 50.93 49.87 39.77 44.01 绝对误差Absolute error 0.53 2.25 1.71 1.48 1.78 2.61 1.09 3.29 0.61 1.71 相对误差Relative error 1.25 4.46 3.55 2.66 3.99 5.19 2.19 6.19 1.51 3.74 亚油酸Linoleic acid 化学值Chemical value 56.08 65.33 64.15 63.22 55.57 67.42 54.34 68.31 60.28 58.66 预测值Predicted value 59.23 69.29 61.87 60.98 54.01 64.88 55.28 66.56 58.44 60.43 绝对误差Absolute error 3.15 3.96 2.28 2.24 1.56 2.54 0.94 1.75 1.84 1.77 相对误差Relative error 5.62 6.06 3.55 3.54 2.81 3.77 1.73 2.56 3.05 3.02 油酸Oleic acid 化学值Chemical value 35.15 26.77 30.76 28.24 25.23 33.78 25.27 28.75 23.24 31.98 预测值Predicted value 34.22 25.45 31.43 29.01 24.32 32.36 23.21 27.69 25.11 31.02 绝对误差Absolute error 0.93 1.32 0.67 0.77 0.91 1.42 2.06 1.06 1.87 0.96 相对误差Relative error 2.65 4.93 2.18 2.73 3.61 4.20 8.15 3.69 8.05 3.00 硬脂酸Stearic acid 化学值Chemical value 5.28 4.61 5.89 3.77 6.01 5.17 4.73 3.58 4.39 4.55 预测值Predicted value 4.33 3.98 5.22 4.41 5.73 4.66 5.01 4.04 3.88 3.83 绝对误差Absolute error 0.95 0.63 0.67 0.64 0.28 0.51 0.28 0.46 0.51 0.72 相对误差Relative error 17.99 13.67 11.38 16.98 4.66 9.86 5.92 12.85 11.62 15.82 棕榈酸Palmitic acid 化学值Chemical value 6.25 5.63 5.66 6.92 5.39 6.57 5.01 6.13 7.04 5.38 预测值Predicted value 5.63 5.01 6.62 5.98 5.98 5.89 5.57 5.24 6.26 5.07 绝对误差Absolute error 0.62 0.62 0.96 0.94 0.59 0.68 0.56 0.89 0.78 0.31 相对误差Relative error 9.92 11.01 16.96 13.58 10.95 10.35 11.18 14.52 11.08 5.76