. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN OF THE No. 215. Contribution from the Bureau of Chemistry, Carl L. Alsberg, Chief. May 21, 1915. (PROFESSIONAL PAPER.) COMPOSITION OF CORN (MAIZE) MEAL MANUFACTURED BY DIFFERENT PROCESSES AND THE INFLUENCE OF COM- POSITION ON THE KEEPING QUALITIES. By A. L. Winton,1 W. C. Burnet, Chemist in Charge, Savannah Food and, J)rug Inspection Laboratory, and J. H. Bornmann, Assistant Chemist. CONTENTS. Introduction J '. ...- 1 Consumption of corn meal . 2 Manufacture of corn meal 3 Products of corn ; .,... 5
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. BULLETIN OF THE No. 215. Contribution from the Bureau of Chemistry, Carl L. Alsberg, Chief. May 21, 1915. (PROFESSIONAL PAPER.) COMPOSITION OF CORN (MAIZE) MEAL MANUFACTURED BY DIFFERENT PROCESSES AND THE INFLUENCE OF COM- POSITION ON THE KEEPING QUALITIES. By A. L. Winton,1 W. C. Burnet, Chemist in Charge, Savannah Food and, J)rug Inspection Laboratory, and J. H. Bornmann, Assistant Chemist. CONTENTS. Introduction J '. ...- 1 Consumption of corn meal . 2 Manufacture of corn meal 3 Products of corn ; .,... 5 Composition of the products of corn mill- . tag- ... I'.'. 6 Spoilage of '.; '. .. (. 15 Relation of moisture' content to keeping qual- , _ â ity of degerminated bolted roller-ground meal 16 Comparative keeping quality of whole^kernel stone-ground meal and degerminated bolted , roller-ground meal 22 Summary.;.....-. â:...... ...........jâ.. 30 INTRODUCTION. The cause, detention, and prevention of the spoilage of Indian corn have been given special attention by the investigators in the Bureau of Plant Industry who have studied the subject from the chemical, biological, and toxicological standpoints. In view of the fact that an excess of moisture is conducive to spoilage as well as shrinkage, Brown and Duvel2 have introduced a rapid method for the deter- mination of this constituent which has come into extensive use in grain standardization laboratories as well as in elevators and mills. The percentages of moisture obtained by this process are important factors in determining the grade of market corn. While moisture is doubtless the most important of the controllable factors causing deterioration, the determination of acidity has come to be recognized as the best chemical means of detecting actual 1 Dr. Winton was formerly chemist in charge, Food Investigation Laboratory. 2 Brown, Edgar, and Duvel, J. A Quick Method for the Determination of Moisture in Grain. U.
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