188 Philippine Journal of Science 1920 
TABLE 4.—Distribution of proteins soluble in different solvents—Continued. 
TRIAL 3. 100-MESH SAMPLE, MODIFIED METHOD. 
Nitrogen 
Copra meal. found in 
solvent, 
Average ee! en! Total Protein 
nitrogen. oe nitrogen. Solvent. —_igissolved. 
gms. gms. gms. gms. ‘Per eent. Per cent. 
bs Sa 0. 03680 
¢ + SRO ACES ann name MO ty 0. 08590 
ode e 
ee eS ae pees 0.03620 | 0.33799 10.71 | Water 
i, Wekeens WC ROE Cee sauce kee cs a 
bo See Ree Darren een yemeie Bhm 0. 00885 
1s Sea es 0. 00948 od pie 0 82 
SET ee Ss 0, onopg |{ 900985 | 0.88799 | souiane lo-|> 5. 
SE Se ae ride. 
Gi siinesausubeacel Gs euacMeccL 0. 05426 2 nt 
BANGS Sees ot bod a a eee 0. 05348 ssciaes eh 
<0 0.05758 | 0.16900 34.07 |{ potassium |) 71.65 
. ben +a ane - hydroxide. 
eee _.| trace 
“RES ER Re ee Sane ane 70 per cent al- peee™ 
Sao : trees ¥ trace cntel. a 
EO en OS CNS QUE GENT trace écih 
Pe Si PPE OER CREED, CESAIEA SUS SPS ORS Wire Goose ee 47,35 | en 0 205-2 s aoe ee 
The separation and purification of the alkali-soluble protein will 
be undertaken soon and a study made of its amino-acid content. 
SUMMARY 
1. The nitrogen partition in that portion of copra meal insol- 
uble in hot water has been studied; it has been found that 
copra meal is rich in the amino-acids necessary for maintenance 
and growth. 
2. It has been found that the alkali- in is the most 
abiiciaitt Sf Giuce Yokel a soluble protein 1 
_ 8. The maximum amount of total protein nitrogen dissolved 
petted 47.55 per cent of the actual amount present in copr4 
This result seems to be rather low when compared with 
pregtinatecnh by Osborne and Campbell.(15) They were able 
in ane ee of 96.6 per cent of the protein nitrogen found 
ACKNOWLEDGMENTS 
as wish to thank my major professor, Dr. Manuel L. Roxas, for 
the thee the subject and for valuable criticisms throughout 
Progress of the work, and Dr. Augustus P. West for sue 
gestions and for loaning me some of the apparatus and chemi 
