CAJ | 학술논문

煎炸老油属于地沟油之一，长时间食用会对身体健康造成严重危害。本文首先对食用金龙鱼菜籽油过度煎炸10次，分别提取光谱信息中特征吸收峰（323、391、443nm）处的光谱吸收值。然后建立区间选择偏最小二乘法模型，提取最佳区间为5，最佳因子为7的波长区间，验证区间预测相关系数达到0．998。最后建立PKS回归方程Y1，Y2，Y3，通过交叉有效性验证Q22=-0．3461〈0．0975。提取成分t1、t2。分别得到回归方程的实际值与预测值相关系数为：323nm处，r=0．8478；391nm处，r=0．9754；443nm处，r=0．9285。
전작로유속우지구유지일，장시간식용회대신체건강조성엄중위해。본문수선대식용금룡어채자유과도전작10차，분별제취광보신식중특정흡수봉（323、391、443nm）처적광보흡수치。연후건립구간선택편최소이승법모형，제취최가구간위5，최가인자위7적파장구간，험증구간예측상관계수체도0．998。최후건립PKS회귀방정Y1，Y2，Y3，통과교차유효성험증Q22=-0．3461〈0．0975。제취성분t1、t2。분별득도회귀방정적실제치여예측치상관계수위：323nm처，r=0．8478；391nm처，r=0．9754；443nm처，r=0．9285。
Frying oil belongs to one of the waste oils, and the long time eating does serious harm to health. First of all, the normal Arowana Rape Seed Oil is excessive frying for 10 times. And they were extracted spectral absorption values in the characteristic absorption peaks of 323 nm,391 nm and 443 nm from the spectral information. Then we establish method of interval estimation, and select partial least square model to extract the best region of 5, the best factor for 7 of the wavelongth interval. And then we verify whether the interval prediction correlation coefficient is 0. 998. Finally, the establishment of the PLS regression equation are Y1,Y2 and Y3. According to cross - validation, the verification Q22 is - 0.3461 less than 0.0975. Extracting components t1 and t2, we obtained correlation coefficients of the regression equation of actual and predicted value is 323 nm and r is 0.8478; 391nm and r is 0.9754; 443nm and r is 0.9285.