Determination of oil content in whole corn (Zea mays L.) seeds by means of near infrared reflectance spectroscopy

作者：Fassio A S; Restaino E A; Cozzolino D^*

来源：Computers and Electronics in Agriculture, 2015, 110: 171-175.

DOI：10.1016/j.compag.2014.11.015

• Near infrared
• Oil
• Partial least squares
• Reflectance
• Corn

The objective of this study was to evaluate the ability of near infrared reflectance (NIR) spectroscopy to determine oil content in whole corn (Zea mays L.) samples sourced from a breeding program. Kernel samples were analysed in reflectance in the VIS and NIR regions (400-2500 nm) at 2 nm intervals using a scanning monochromator. Samples were scanned in a circular cell cup and reflectance data were stored as logarithm of the reciprocal reflectance (log 1/R). Samples were not rotated when spectra collection was made. The coefficients of determination (R-2) and the standard error of cross validation (SECV) obtained for the prediction of oil content in the calibration set were 0.90% and 0.17%, respectively. The residual predictive deviation (RPD = SD/SECV) value obtained was 2.3, indicating that these calibrations can be used for qualitative determination of oil content (e.g. low, medium and high) or preliminary screening in whole corn.

• 出版日期2015-1