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首页> 外文期刊>Food Chemistry >Assessment of the optical properties of peaches with fungal infection using spatially-resolved diffuse reflectance technique and their relationships with tissue structural and biochemical properties
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Assessment of the optical properties of peaches with fungal infection using spatially-resolved diffuse reflectance technique and their relationships with tissue structural and biochemical properties

机译：使用空间分辨漫反射技术评估桃子真菌感染的光学特性及其与组织结构和生化特性的关系

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摘要

This research measured the optical absorption (mu(a)) and reduced scattering (mu(s)) properties in peaches during quality deterioration, and determine the relationships of the optical parameters with select structural and biochemical parameters. Spatially resolved reflectance was measured for healthy and fungal infected peaches, followed by physical (the size and tissue color), structural [membrane permeability and SEM], and biochemical (Vc, soluble sugar, titratable acid, chlorophyll, total phenolic content) measurements. Both mu(a) and mu(s)' were correlated well with the cellulosic structural and biochemical parameters of peaches, and they had the best correlations with those quality parameters at 675 nm. The correlation of mu(s)' with membrane permeability was the highest from -0.962-0.743, while mu a had the best correlation with the chlorophyll content at 675 nm which is an indicator of plant maturation and senescence. These findings would be useful for further development of an effective optical technique for early disease detection of peach fruit.
机译：这项研究测量了桃在质量恶化期间的光吸收（mu（a））和减少的散射（mu（s））特性，并确定了光学参数与所选结构和生化参数之间的关系。测量健康和真菌感染的桃子的空间分辨反射率，然后进行物理（大小和组织颜色），结构[膜通透性和SEM]和生化（Vc，可溶性糖，可滴定酸，叶绿素，总酚含量）的测量。 mu（a）和mu（s）与桃的纤维素结构和生化参数相关性很好，并且在675 nm下与这些质量参数具有最佳相关性。 mu（s）与膜通透性的相关性最高，为-0.962-0.743，而μa与675 nm处的叶绿素含量的相关性最高，这是植物成熟和衰老的指标。这些发现将有助于进一步开发一种有效的光学技术，以早期检测桃果实的疾病。

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  • 来源
    《Food Chemistry》 |2020年第15期|126704.1-126704.9|共9页
  • 作者

  • 作者单位

    Nanjing Agr Univ Coll Engn 40 Dianjiangtai Rd Nanjing 210095 Peoples R China;

    USDA ARS 524 S Shaw Lane Room 224 E Lansing MI 48824 USA;

    Nanjing Agr Univ Coll Food Sci & Technol 1 Weigang Rd Nanjing 210095 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Peach; Fungal disease; Hyperspectral imaging; Optical properties; Microstructure; Physicochemical parameters;

    机译：桃子;真菌病高光谱成像;光学性质;微观结构理化参数;

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