Composition of a Typical Unhulled Barley.
—From a comparative study of a number of samples of American barley the following numbers are regarded as typical of the composition of the unhulled barley grown in the United States:
| Weight of 100 kernels, | 4.53 | grams |
| Moisture, | 10.85 | percent |
| Protein, | 11.00 | „ |
| Ether extract, | 2.25 | „ |
| Crude fiber, | 3.85 | „ |
| Ash, | 2.50 | „ |
| Starch and sugar, etc., | 69.55 | „ |
The important points brought out in the above data are that the percentage of fiber in the unhulled barley is less than one-half that of the unhulled oat, as stated further on, while the percentage of ether extract is only about one-half that of the unhulled oat, and the protein is also decidedly less than in the whole oat.
As has been stated, barley is not very generally used in this country for human food, but is used in this and other countries as an ingredient of soup.
Fig. 22.—Barley Starch. × 200.—(Bureau of Chemistry.)
Protein of Barley.
—The following protein compounds are found in barley in proportionate weight to the total weight of the seed:
| Leucosin, | 0.30 | percent |
| Hordein, | 4.00 | „ |
| Edestin, | 1.95 | „ |
| Proteose, | 1.95 | „ |
| Insoluble protein, | 4.50 | „ |