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Nondestructive determination of tannin content in intact individual acorns by near-infrared spectroscopy

机译:用近红外光谱非破坏性测定完整橡子中单宁的含量

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摘要

To examine the effects of tannin content in acorns of Quercus serrata on the fate of individual seeds, we developed a system for nondestructive chemical analysis of single acorns by near-infrared spectroscopy. We modeled the relationship between the normalized second-derivative spectra and tannin content by partial least squares regression. We obtained the best calibration model (γ~2 = 0.836;standard error of calibration = 1.90;standard error of validation = 1.43;bias = 0.10). The regression coefficient plots showed that the key band for the model was 938 nm, close to the absorption band of tannic acid in aqueous solution.
机译:为了检查锯齿栎橡子中单宁含量对单个种子命运的影响,我们开发了一种通过近红外光谱对单个橡子进行无损化学分析的系统。我们通过偏最小二乘回归对标准化的二阶导数光谱和单宁含量之间的关系进行了建模。我们获得了最佳的校准模型(γ〜2 = 0.836;校准的标准误差= 1.90;验证的标准误差= 1.43;偏差= 0.10)。回归系数图显示该模型的关键谱带为938 nm,接近水溶液中单宁酸的吸收谱带。

著录项

  • 来源
    《Ecological research》 |2011年第3期|p.679-685|共7页
  • 作者单位

    Department of Biological Science,Graduate School of Science and Engineering,Tokyo Metropolitan University, 1-1 Minami-Osawa,Hachioji, Tokyo 192-0397, Japan;

    Tohoku Research Center, Forestry and Forest Products Research Institute, 92-25 Nabeyashiki,Shimo-Kuriyagawa, Morioka 020-0123, Japan;

    National Food Research Institute, Ministry of Agriculture,Forestry and Fisheries, 2-1-2 Kannondai,Tsukuba 305-8642, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    nir spectroscopy; single seeds; seed fate; oak; quercus serrata; plant secondary metabolites;

    机译:近红外光谱法;单种子;种子命运;橡木;锯缘栎;植物次生代谢产物;

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