نتایج جستجو برای: savitzky

تعداد نتایج: 317  

Journal: :International Journal on Advanced Science, Engineering and Information Technology 2023

Chili (Capsicum annuum L.) is an important source of total carotene and vitamin C. Both substances are widely used in food processing materials, supporting a healthy immune system medicine. However, destructive testing often obtains information about the substances, which damages tested material requires relatively long analysis. Therefore, this research aims to develop calibration models C chi...

Journal: :IOP conference series 2022

Abstract Sapodilla fruit (Manilkara zapota) is a climacteric having short shelf life. To extend life, cold temperature storage often used. During storage, one of the parameters that could change malic acid. Malic acid can be measured non-destructively using visible-near infrared (Vis-NIR) spectroscopy. However, measurement VisNIR spectroscopy has limitations, which sensitivity instrument toward...

Journal: :Journal of oleo science 2015
Xiumei Chen Xiuzhu Yu Yage Wang Yandie Yang Jingya Zhang

A rapid and convenient method was developed to determine the polar components (PC) of frying oil by Fourier-transform near-infrared (FTNIR) spectroscopy. One hundred twenty six oil samples were used to PC determination by column chromatography and FTNIR spectroscopy combined with partial least-square (PLS) calibration. The optimal PLS calibration was obtained after the Savitzky-Golay smoothing ...

2012
Wenwen Kong Yun Zhao Fei Liu Yong He Tian Tian Weijun Zhou

Visible and near infrared (Vis/NIR) spectroscopy was investigated for the fast analysis of superoxide dismutase (SOD) activity in barley (Hordeum vulgare L.) leaves. Seven different spectra preprocessing methods were compared. Four regression methods were used for comparison of prediction performance, including partial least squares (PLS), multiple linear regression (MLR), least squares-support...

2014
Xin-fang Xu Li-xing Nie Li-li Pan Bian Hao Shao-xiong Yuan Rui-chao Lin Hai-bo Bu Dan Wang Ling Dong Xiang-ri Li

Near-infrared spectroscopy (NIRS), a rapid and efficient tool, was used to determine the total amount of nine ginsenosides in Panax ginseng. In the study, the regression models were established using multivariate regression methods with the results from conventional chemical analytical methods as reference values. The multivariate regression methods, partial least squares regression (PLSR) and ...

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