• Spectroscopy and Spectral Analysis
  • Vol. 36, Issue 10, 3154 (2016)
CHEN Xiao-yu1、2、*, ZHANG Xiao-shuan1、2, ZHU Zhi-qiang3, ZHANG Peng3、4, and MU Wei-song1、2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
  • 4[in Chinese]
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    DOI: 10.3964/j.issn.1000-0593(2016)10-3154-05 Cite this Article
    CHEN Xiao-yu, ZHANG Xiao-shuan, ZHU Zhi-qiang, ZHANG Peng, MU Wei-song. Logistics Process Safety System of Table Grapes Based on NIR[J]. Spectroscopy and Spectral Analysis, 2016, 36(10): 3154 Copy Citation Text show less

    Abstract

    In view of the actual logistics process of table grapes and the situation that fresh keeping agents based on sulfur dioxide are commonly used in table grape logistics, we studied the shelf life prediction method of table grapes under 4 temperatures and constant concentrations of sulfur dioxide based on near infrared spectrum (NIR) and the evolution of texture in this work. Logistics process safety system based on shelf life prediction was designed to reduce the loss of table grapes in the logistics. The change of texture is an important cause of postharvest table grapes to end their shelf life in postharvest logistics. In this work, we used SO2 concentration sensors to control solenoid valves, and obtained the set SO2 concentrations by automatic compensation mechanism. The evolutions of table grape texture under different concentrations of sulfur dioxide were studied as well as the influence of temperature. The NIR pretreatment effects of multiplicative scatter correction and the first S-G derivation were compared. The table grape texture nondestructive testing model built base on NIR and partial least squares regression achieved a determination coefficient of 0.93 and the root mean squared error (RMSE) was 1.70. In full cross-validation, the prediction accuracy reached to 0.81 and got a RMSE of 2.91. Research indicated that the NIR detection combined with the quality change modeling and information technology could be used to improve the logistics process safety management efficiency of postharvest fruits and vegetables.
    CHEN Xiao-yu, ZHANG Xiao-shuan, ZHU Zhi-qiang, ZHANG Peng, MU Wei-song. Logistics Process Safety System of Table Grapes Based on NIR[J]. Spectroscopy and Spectral Analysis, 2016, 36(10): 3154
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