10 



BULLETIN 570, U. S. DEPARTMENT OF AGRICULTURE. 



Table 7. — Yield of by-products and cleaned rice obtained from the milling of 13,935 

 founds of No. 1 Blue Rose type rice. Lot A. 



[Quantity of rice milled: 71 bags or 86 barrels of 162 pounds each; total weight, 13,935 pounds]. 



Cleaned rice and by-products. 



Yield. 



Cleaned rice and by-products. 



Yield. 



Hulls 



Pounds. 

 2, 706. 



294.5 

 391.5 



481. 



Per cent. 

 19.4 



2.1 

 2.8 



3.4 



Polish 



Pounds. 

 397.0 

 7, 900. 

 1, 130. 

 270.0 

 100.0 

 265.0 



Per cent. 

 2.9 



Brans: 





56.6 



Stone reel (25.2 per cent).. 

 First break (33.6 per cent) . 

 Second break (41.2 per 





8.1 



Brewer's rice 



1.9 



0.7 





1.9 









The laboratory results on the samples from this run are shown in 

 Table 8. 



Table 8. — Chemical composition of by-products and of rice at different stages of milling 

 No. 1 Blue Rose type rice. Lot A. 



Sample No. 



Description of sample. 



Moisture. 



Ash. 



Ash 

 insoluble 



in 10 

 per cent 



HC1. 



Ratio of 

 insoluble 



ash to 

 total ash. 



Crude 

 fiber. 



11996— L 



Hulls 



Per cent. 

 7.51 

 8.91 

 9.28 

 9.91 

 9.45 

 8.87 

 11.95 

 11.67 

 8.84 

 12.68 

 11.90 

 12.33 

 12.55 

 12.30 

 11.07 



Per cent. 

 17.90 

 13.46 

 7.43 

 7.24 

 8.87 

 7.39 



Per cent. 

 17.59 

 9.62 

 1.03 

 1.19 

 3.26 

 .60 



1:1.02 

 1:1.40 

 1:7.21 

 1:6.08 

 1:2.71 

 1:12.32 



Per cent. 

 43.19 



11993— L 





23.54 



12675— L 





9.13 



12677— L 





7.83 



12679— L 



Calculated analysis of mixed bran 



12.23 

 1.59 



11991— L 







11992— L 











11995— L 



Hulls and bran after the monitor 



Rice after stone monitor going to paddy. 

 Rice from rough side of paddy machine. 

 Rice from clean side of paddy machine . 



Rice after first-break huller screen 



Rice after brush machine 



Rice after brush machine (finely ground) . 









11997— L 









11999—L 









11998— L 









12000— L 









12678— L 









12678— L 



0.30 



0.01 



1:30.0 



0.37 



Sample Xo. 



Description of sample. 



Protein 

 (N X 6.2.5). 



Ether 

 extract. 



Nitro- 

 gen-free 

 extract. 



Pento- 

 sans. 



Starch. 



11996— L 



Hulls 



Per cent. 

 1.93 

 . 9.68 

 14.93 

 14.60 

 13.47 

 12.79 



Per cent. 

 0.59 

 8.61 

 20.11 

 18.68 

 16.62 

 16.99 



Per cent. 

 28. S8 

 35.80 

 39.12 

 41.74 

 39.36 

 52.37 



Per cent. 



16.73 



12.95 



7.35 



7.39 



Per cent. 

 1.25 



11993— L 





7.82 



12675— L 





12.63 



12677— L 





16.37 





Calculated analysis of mixed bran 



Rice polish 





12679— L 

 11991—1, 



4.68 



33.88 



11992— L 















11995— L 















H997_L 















H999_L 















11998 — l 















12000 — L 















12678 — L 















12678— L 



Rice after brush machine (finely 



7.87 



0.52 



79.87 













