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Optimization of a non-destructive system for on-line infrared measurement of fruit internal quality.

Author(s) : BELLON V., VIGNEAU J. L., LECLERCQ M.

Summary

The paper describes an attempt to develop a new Near Infrared Reflectance spectrometer to sort fruits according to sugar content in the packing stations. A good signal to noise ratio has been recorded in the 820 to 1010 nm range. This spectrometer has been tested with a set of 79 peaches. Partial least squares processing is applied to different wavelengths ranges. The best coefficient of correlation, got with a reduced wavelength range (from 847 to 977 nm) is 0.81. With this calibration, the fruits can be sorted into 3 maturity classes with a reliability of 76%. This performance, like the other characteristics of the instrument, are in accordance with the requirements of the packing station managers.

Details

  • Original title: Optimization of a non-destructive system for on-line infrared measurement of fruit internal quality.
  • Record ID : 1996-2890
  • Languages: English
  • Source: The post-harvest treatment of fruit and vegetables. Systems and operations for post-harvest quality. Proceedings COST 94.
  • Publication date: 1993/09/14
  • Document available for consultation in the library of the IIR headquarters only.

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