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2 不同预处理方法的籽仁脂肪及4种主要脂肪酸含量模型结果

Table 2 Results of the models of fat content and four main fatty acids of seed kernels by using different pretreatment methods

预处理方法 Pretreatment method 校正相关系数R2 Correlation coefficients of calibration 校正均方 根误差 RMSEC 验证相关系数R2 Correlation coefficients of validation 预测均方 根误差 RMSEP 主成分数 Number of principal components 脂肪Fat 原光谱The original spectrum 0.95 1.00 0.93 1.18 4 1st 0.96 0.98 0.94 1.16 4 SNV 0.95 0.97 0.93 1.26 5 1st+SNV 0.97 0.83 0.96 0.96 4 MSC+1st 0.98 0.70 0.97 0.88 4 亚油酸Linoleic acid 原光谱The original spectrum 0.96 0.74 0.91 1.10 9 1st 0.95 0.83 0.89 1.20 7 SNV 0.98 0.53 0.96 0.80 7 1st+SNV 0.97 0.61 0.95 0.83 7 MSC+1st 0.98 0.49 0.97 0.71 6 油酸Oleic acid 原光谱The original spectrum 0.91 1.50 0.83 2.12 10 1st 0.93 1.10 0.88 1.55 7 SNV 0.95 1.04 0.91 1.47 8 1st+SNV 0.98 0.68 0.96 0.99 5 MSC+1st 0.93 1.16 0.89 1.55 6 硬脂酸Stearic acid 原光谱The original spectrum 0.93 0.22 0.82 0.37 12 1st 0.92 0.25 0.83 0.37 9 SNV 0.64 0.51 0.46 0.66 8 1st+SNV 0.79 0.41 0.68 0.55 8 MSC+1st 0.75 0.40 0.51 0.59 7 棕榈酸Palmitic acid 原光谱The original spectrum 0.65 0.25 0.41 0.34 8 1st 0.58 0.25 0.41 0.30 5 SNV 0.82 0.18 0.74 0.23 5 1st+SNV 0.82 0.19 0.72 0.26 6 MSC+1st 0.75 0.22 0.62 0.28 6