THE MILLING OF RICE. 



27 



extract, and crude fiber in the higher than in the lower or broken- 

 rice grades of both the Honduras and the Japan types of rice. The 

 protein figure for the milled rice of the Honduras type appears to 

 be somewhat higher than that for the Japan type. This may be due 

 to the greater length of the grain of the former and the consequent 

 greater surface of the kernel, and therefore to the larger surface area 

 of the protein-bearing aleurone layer. As previously stated, a con- 

 siderable portion of this layer remains on the grain after milling. 



Table XI. — Chemical composition of samples of milled graded rice of the 

 Honduras and Japan types in series corresponding to those in Table VII. 





Constituents (per cent). 



Type and series. 



Mois- 

 ture. 



Ash. 



Ether 

 ex- 

 tract. 



Crude 

 fiber. 



Pro- 

 tein. 



Pen- 

 to- 

 sans. 



Calculated to moisture-free 

 basis. 





Ash. 



Ether 

 ex- 

 tract. 



Crude 

 fiber. 



Pro- 

 tein. 



Pen- 

 to- 

 sans. 



RICE OF THE HONDURAS TYPE. 



Series 1 : 



Fancy head, uncoated 



Second head, uncoated 



Screenings, uncoated 



12.05 

 11.92 

 12.32 

 11.13 



12.49 

 12.01 

 12.75 

 12.48 



12.32 

 12.14 

 13.46 

 13.64 



11.66 

 11.75 

 12.48 

 11.78 



0.33 

 .33 



.48 

 .65 



.31 

 .30 

 .34 

 .41 



.39 

 .44 

 .60 

 .88 



.34 

 .39 

 .46 

 .53 



0.17 

 .17 

 .22 

 .26 



.28 

 .35 

 .37 

 .21 



.24 

 .27 

 .29 



.37 



.23 



.28 

 .46 



.48 



0.21 

 .26 

 .25 

 .30 



.34 

 .33 

 .30 

 .41 



.21 

 .24 

 .24 

 .34 



.30 

 .33 

 .33 

 .43 



7.69 

 7.31 

 7.31 

 7.50 



8.75 

 8.31 

 8.38 

 8.10 



8.43 

 8.06 

 7.75 

 8.12 



7.88 

 7.81 

 7.31 

 7.50 



1.94 

 1.94 

 1.91 

 1.85 



1.73 

 1.54 

 1.98 

 1.81 



1.45 

 1.24 

 1.44 

 1.54 



1.79 

 1.95 

 1.86 

 2.03 



0.38 

 .37 

 .55 

 .73 



.35 

 .34 

 .39 



.47 



.44 



.50 



.69 



1.02 



.38 

 .44 

 .53 

 .60 



0.19 

 .19 

 .25 

 .29 



.32 

 .40 

 .42 

 .24 



.27 

 .31 

 .33 

 .43 



.26 

 .32 

 .53 

 .54 



0.24 

 .30 



.28 

 .34 



.39 

 .37 

 .34 



.47 



.27 

 .27 

 .28 

 .39 



.34 

 .37 

 .38 

 .49 



8.74 

 8.30 

 8.34 

 8.44 



10.00 

 9.44 

 9.60 

 9.26 



9.61 

 9.17 

 8.96 

 9.40 



8.92 

 8.85 

 8.35 

 8.50 



2.20 

 2.20 

 2.21 

 2.09 



Series 2: 



Fancy head, uncoated 



Second head, uncoated 



Screenings, uncoated 



1.98 

 1.75 

 2.27 

 2.07 



Series 3: 



Fancy head, uncoated 



Second head, uncoated 



Screenings, uncoated 



1.65 

 1.41 

 1.66 



1.78 



Series 4 : 



2.03 



Second head, coated 



2.21 

 2.13 





2.30 







Average of the four series: 

 Fancy head 



12.13 

 11.96 

 12.75 

 12.26 



.34 

 .37 

 .47 

 .62 



.23 

 .27 

 .34 

 .33 



.27 

 .29 

 .28 

 .37 



8.19 

 7.87 

 7.69 

 7.81 



1.75 

 1.67 

 1.80 

 1.81 



.39 



.41 

 .54 

 .71 



.26 

 .31 

 .38 

 .38 



.30 

 .33 

 .32 

 .42 



9.32 

 8.94 

 8.81 

 8.40 



1.97 

 1.89 





2.07 





2.06 







RICE OF THE JAPAN TYPE. 



Series 1 : 



12.24 

 12.37 

 12.12 



12.17 



12.23 

 12.70 



13.74 

 13.94 

 12.76 



.34 

 .39 



.39 



.32 

 .46 



.42 



.44 

 .50 

 .41 



.18 

 .22 

 .30 



.07 

 .13 

 .08 



.22 

 .33 

 .33 



.33 

 .37 

 .39 



.35 

 .36 

 .31 



.18 

 .19 

 .24 



6.22 

 6.25 

 6.16 



6.78 

 6.94 

 6.69 



5.88 

 6.44 

 7.00 



1.77 

 1.69 

 1.70 



1.89 

 1.86 

 1.81 



1.45 

 1.60 

 1.40 



.39 

 .45 

 .44 



.36 

 .52 



.48 



.51 

 .58 



.47 



.20 

 .25 

 .34 



.08 

 .15 

 .09 



.25 

 .38 



.38 



.38 

 .42 

 .44 



.40 

 .41 

 .36 



.21 

 .22 



.27 



7.09 

 7.13 

 7.01 



7.72 

 7.91 

 7.66 



6.82 

 7.49 

 8.02 



2.02 



Screenings, coated 



1.93 





1.93 



Series 2: 



2.15 



Screenings, coated 



2.12 





2.07 



Series 3: 



1.68 





1.86 





1.60 







Average of the three series : 



12.72 

 12.85 

 12.53 



.37 

 .45 

 .41 



.16 

 .23 

 .24 



.29 

 .31 

 .31 



6.29 

 6.54 

 6.62 



1.70 

 1.72 

 1.64 



.42 

 .52 



.46 



.18 

 .26 

 .27 



.33 

 .35 

 .36 



7.21 

 7.51 

 7.56 



1.95 





1.97 





1.87 







