ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Transient infrared spectoscopy for detection of toxigenic fungi in corn : potential for online evaluation.

GORDON, S.H., JONES, R.W., MCCLELLAND, J.F., WICKLOW, D.T. and GREENE, R.V.

Journal of Agricultural and Food Chemistry 47: 5267-5272.

1999

บทคัดย่อ

Transient infrared spetroscopy (TIRS) is a new techinque that can acquire analytically  usefull infrared spectra from a moving mass of solid materials.  The potential of TIRS for on-line, noncontact detection of Aspergillus flavus contamination in a moving bed of corn kernels was explored.  Early test results based on visual inspection of TIRS spectral differences predict an 85 or 95% success rate in distinguishing healthy corn from grain infected with A. flavus.  Four unique infrared spectral features which indentified infected corn in FTIR-PAS were also found to be diagnostic in TIRS.  Athough the technology is still in its infancy, the preliminary results indicate that TIRS is a potentially effective screening method for bulk quantities of corn grain.