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Cereal Chem 63:36-38   |  VIEW ARTICLE
Comparison of Screening Methods for Indirect Determination of Sorghum Hardness.

Y. Pomeranz. Copyright 1986 by the American Association of Cereal Chemists, Inc. 

Hardness of sorghum was determined by four indirect methods: time to grind by the Brabender microhardness tester, resistance to grinding by the Stenvert hardness tester (SHT), and two methods for determination of average particle size: particle size index (PSI) and near-infrared (NIR) reflectance at 1,680 nm of group sorghum grain samples from Nebraska (two years), Indiana, and Texas. A total of 65 samples differing widely in texture and composition was evaluated. The SHT method was found to be useful for rapid and reliable differentiation among the samples; the NIR method was useful for testing samples, provided an appropriate mill was available. Results of the Brabender microhardness tester and NIR or SHT were negatively correlated and the NIR and SHT methods were highly positively correlated.

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