张林,陆辉山,高强,闫宏伟,王福杰

• 1:中北大学机械与动力工程学院

摘要(Abstract)：

以老陈醋作为研究对象,研究了选用1,2,5mm不同光程对醋龄的定性分析与可溶性固形物(SSC)和有效酸度(pH)定量分析模型的影响,发现采用1mm光程的近红外透射光频谱通过5点平滑处理后建立的老陈醋定量与定性分析模型最优,并且随着光程的增大,建立的模型的稳定性和预测准确性均变坏。当光程增加到5mm时,模型的预测准确性只能达到50%左右,不能有效地对醋龄、可溶性固形物的含量和pH值进行预测,进而可以推广采用近红外光谱检测技术对液态调味品的定量与定性分析,应结合食品的特性选择合适的光程以增大检测的准确性和可靠性。

关键词(KeyWords)： 近红外;光程;液态食品;定性分析;定量分析

Abstract:

Keywords:

基金项目(Foundation): 国家自然基金(41201294);; 山西省青年科技基金项目(2009201019-3);; 江苏省农产品物理加工重点实验室开放基金(JAPP2012-2)

作者(Author): 张林,陆辉山,高强,闫宏伟,王福杰

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