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Prediction of Total Phenolics and Flavonoids Contents in Chinese Wild Rice (Zizania latifolia) Using FT-NIR Spectroscopy
Total Phenolics Flavonoids Contents
2016/6/2
Total phenolics and flavonoids contents in Chinese wild rice were predicted using Near Infrared (NIR) spectroscopy as a rapid method. A Partial Least Square (PLS) algorithm was applied to perform the ...
梨可溶性固形物含量NIR与变量筛选无损检测（Measurement of Soluble Solids Content in Pear by FT-NIR Spectroscopy and Variable Selection）
梨 可溶性固形物含量 近红外光谱
2010/12/28
为提高利用近红外光谱技术快速检测梨可溶性固形物含量的精度和稳定性，结合区间偏最小二乘和遗传算法（iPLS-GA）来筛选校正模型中的特征光谱区和变量，通过交互验证法确定模型中的主成分因子数和筛选的变量，并以预测均方根误差（RMSEP）和相关系数（Rp）作为模型评价标准。试验结果显示：iPLS-GA最优模型包含5个光谱区、50个变量和10个主成分因子。最佳预测模型相关系数（Rp）和RMSEP 分别为0...
应用傅里叶换近红外光谱法测定1200个具代表性的考验各个生长起的根茎叶样品的近红外光谱数据，采用化学计量中的多员校正法分别对根茎叶和烟叶建立了测定氮、磷、氯和钾等主要营养元素含量的校正模型。
Nondestructive identification of tea (Camellia sinensis L.) varieties using FT-NIR spectroscopy and pattern recognition
green teaAvarietyAidentificationAFT-NIR spectroscopyApattern recognition
2014/3/3
Due to more and more tea varieties in the current tea market, rapid and accurate identification of tea (Camellia sinensis L.) varieties is crucial to the tea quality control. Fourier Transform Near-In...