TY - JOUR
T1 - Calibration of a near-infrared transmission grain analyser for extractable starch in maize
AU - Paulsen, Marvin R.
AU - Singh, Mukti
N1 - Funding Information:
Paper No 02-PH-059 was presented at AgEng Budapest 2002, an International Conference on Agricultural Engineering, Budapest, Hungary on 30 June to 4 July 2002. This study was a part of Project 55030 and 95562 of the Illinois Agricultural Experiment Station, College of Agricultural, Consumer and Environmental Sciences, University of Illinois at Urbana-Champaign. The research was funded in part by the Council on Food and Agricultural Research, DuPont/Pioneer Hi-Bred International, Inc., Monsanto Co., and GIPSA-FGIS-USDA.
PY - 2004/9
Y1 - 2004/9
N2 - A calibration for extractable starch in maize was developed for the Foss Infratec 1229 near-infrared transmission (NIT) grain analyser. The calibration was based on over 2267 samples collected over five crop years from 1997 through 2001. Extractable starch in maize can be predicted using the Infratec 1229 NIT spectrophotometer with a standard error of prediction (SEP) of 1·24, coefficient of determination (R2) of 0·79, and ratio of laboratory standard deviation to SEP (RPD) of 2·15 for a validation set using one elimination pass. With no elimination passes, 8 of 389 samples were not predicted well, giving an SEP of 1·34, R2 of 0·80 and a RPD of 2·2. A small check sample set of ten had a better SEP of 1·06 but a poorer RPD. Regression coefficient peaks corresponded to some of the wavelengths known for starch-cellulose, water, and negative protein and oil absorption bands.
AB - A calibration for extractable starch in maize was developed for the Foss Infratec 1229 near-infrared transmission (NIT) grain analyser. The calibration was based on over 2267 samples collected over five crop years from 1997 through 2001. Extractable starch in maize can be predicted using the Infratec 1229 NIT spectrophotometer with a standard error of prediction (SEP) of 1·24, coefficient of determination (R2) of 0·79, and ratio of laboratory standard deviation to SEP (RPD) of 2·15 for a validation set using one elimination pass. With no elimination passes, 8 of 389 samples were not predicted well, giving an SEP of 1·34, R2 of 0·80 and a RPD of 2·2. A small check sample set of ten had a better SEP of 1·06 but a poorer RPD. Regression coefficient peaks corresponded to some of the wavelengths known for starch-cellulose, water, and negative protein and oil absorption bands.
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U2 - 10.1016/j.biosystemseng.2004.05.009
DO - 10.1016/j.biosystemseng.2004.05.009
M3 - Article
AN - SCOPUS:4444375666
SN - 1537-5110
VL - 89
SP - 79
EP - 83
JO - Biosystems Engineering
JF - Biosystems Engineering
IS - 1
ER -