MESQUITE, CAROB, AND HOSEY LOCUST BEANS. 
11 
Table 6. — Composition of portions of mesquite beans obtained by mechanical 
separation. 
Portion separated (from 
sample 3S» 
Partially dry basis. 
Sam- 
pie 
No. 
=15 
D 
"35 
- r 
5 
Crude protein 
(NX6.26). 
Crude fiber. 
Nitrogen-free 
extract. 
Redllcing sug- 
ars as Invert. 
Sucrose. 
Pentosans. 
1 lulelermiiied. 
33123 
33424 
32949 
Pod and sugary material. . 
Seel capsules or husks 
P.ct. 
60.5 
25.1 
3.8 
3.6 
P.ct. 
2.82 
3.10 
9.14 
6.06 
P.c*. 
3.96 
3.33 
2.06 
4.86 
p.rf. 
2.21 
.58 
59 
P.ct. P.ct. P.ct. P.ct. 
9.81 29.19 52.01 3.47 
4.21 52.65 36.13 1.73 
7 m in qi ?n 97 . ns 
P.ct. P.ct. P ct. 
19.93 28.61 
7.55 26. 85 
.07 14 54 334. 95 
32950 
Seed kernels 2 
7.29 61.22 2.63 1 
3.79 5.65, 8.50 
1 
Portion separated 'from sample 
3281 
Moisture-free basis. 
Sam- 
ple 
No. 
ft 
— ,- 
§33 >, 
Ash. 
Ether extract 
(crude tat). 
crude protein 
(NX6.25). 
Crude fiber. 
Nitrogen ■ free 
extract 
Reducing sug- 
ars as Invert. 
Sucrose. 
Pentosans. 
Undetermined, 
33423 
33424 
32949 
Pod and sugary material 
Seed capsules or husks 
Seed coats - 
P.ct. P.ct. P.ct. P.ct. 
60.8 4.07 2.27 10.10 
25.2 3.44 .60 4.31 
3.6 2.27 .65 7.70 
3.5 5.17 7.76 65.17 
P.ct. P.ct. P.ct. P.ct. P.ct. P.ct. 
30.04 .53.52 3.57 20.51 29.44 
54.33 37.29 1.79 7.79 27.71 
12.04 77.34 .06 .08 16.00 338.46 
329-50 
Seed kernel^ - 
2.80 19. 10 None. 4.03 6.02 9.05 
1 The rest (7 per cent; includes the following: Irmerfect or second-grade seeds, 2.3 per cent; miscellaneous 
mixture (offal), 3.4 per cent: and intangible loss, 1.3 per cent. The seeds and "offal" were not analyzed. 
1 Obtained from first-grade seeds only. 
3 Contained 20.66 per cent of galactans. 
* To obtain these results it was necessary to assume moisture figures for the second-grade seeds and "offal." 
These seeds were assumed to hare the same moisture content as the first-grade seeds. 
5 Contained 22.74 per cent of galactans. 
A comparison of the results in Table 6 with those in Table 4, par- 
ticularly the figures for protein on the moisture-free materials, indi- 
cates that in the mechanical separation some seed material must have 
remained with the pods and that the milled seed coats contained a 
small quantity of the high-protein embryo substance. Both the 
protein and crude-fiber results suggest that an appreciable quantity 
of the seed-coat material is mixed with the kernels. Nevertheless, 
by this experimental milling, a means has been outlined for a reason- 
ably sharp mechanical separation of the fruit of the mesquite. It 
has been demonstrated, on a laboratory scale at least, that, provided 
the fruit is kept '•bone-dry/' it is practicable to obtain by milling 
the entire pod material, containing over 94 per cent of the sugar 
originally present in the whole fruit, and the whole seeds. The seeds, 
after being moistened or tempered, maybe milled, thus securing seed 
kernels in the form of meal or flour containing from 17.5 to more 
than 40 per cent of the total protein of the fruit, and seed coats, a 
sort of ,, bran" by-product. 
The seed-coat material contains over 14 per cent of pentosans. 20 
per cent of galactans, and nearly 35 per cent of other readily hv- 
drolvzable carbohydrates. The absence of starch makes these unde- 
termined carbohydrates of interest as a possible source of uncommon 
