Rapid analysis of fatty acids in soybeans using FT-NIR

S. Nimaiyar, Marvin R Paulsen, Randall L Nelson

Research output: Contribution to conferencePaperpeer-review


The objective of this research was to develop calibrations using Fourier-Transform Near-Infrared Reflectance (FT-NIR) spectroscopy to measure palmitic, stearic, oleic, linoleic and linolenic acids in soybeans. FT-NIR calibration models predicted the five fatty acids with correlation coefficients (r) ranging from 0.49 to 0.87, Root Mean Square Error of Prediction (RMSEP) values from 0.39 to 3.46% of total oil and (standard deviation of reference values divided by RMSEP (RPD) values from 1.0 to 1.9 for the five fatty acids.

Original languageEnglish (US)
Number of pages15
StatePublished - 2004
EventASAE Annual International Meeting 2004 - Ottawa, ON, Canada
Duration: Aug 1 2004Aug 4 2004


OtherASAE Annual International Meeting 2004
CityOttawa, ON


  • FT- NIR
  • Fatty acids
  • Soybean
  • Spectroscopy

ASJC Scopus subject areas

  • Engineering(all)


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