白檀果实含油率及其油脂脂肪酸含量测定的 近红外光谱模型构建Construction of near infrared reflectance spectroscopy model for oil content and fatty acid content in Symplocos paniculate fruit
为快速、无损检测白檀果实的含油率及其油脂各脂肪酸含量,采用DA 7200型近红外分析仪采集115份白檀果实的光谱数据。采用标准正态变量转换法(SNV)、乘积分散校正法(MSC)、卷积平滑法(SG)、一阶导数(FDE)、二阶导数(SDE)以及多种方式相结合对原始光谱进行预处理,对比不同预处理方法的效果,选择最佳预处理方法,在此基础上,结合偏最小二乘法(PLS)和主成分回归分析(PCR)建立含油率及各脂肪酸含量的预测模型,比较不同模型的交互验证决定系数(RCV)和交互验证标准偏差(RMSECV),确定最佳模型,同时结合化学法的测定结果进行模型外部验证。结果表明:白檀果实含油率、棕榈酸含量、油酸含量...
Main Author: | 曹慧芳1,2,蒋丽娟2,3,刘强2,3,赵志伟2,3,李培旺2 CAO Huifang1,2, JIANG Lijuan2,3, LIU Qiang2,3, ZHAO Zhiwei2,3, LI Peiwang2 |
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Format: | Article |
Language: | English |
Published: |
中粮工科(西安)国际工程有限公司
2023-10-01
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Series: | Zhongguo youzhi |
Subjects: | |
Online Access: | http://tg.chinaoils.cn/zgyz/ch/reader/create_pdf.aspx?file_no=20231020&flag=1 |
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