10 



The Philippine Jourtial of Science 



lau 



Tabu: VII. — Duplicate analysis of Ceylon papain, sample S, 



No. of 

 flask. 



Milk. 



Water. 



Papain 

 solution. 



Papain. 



Protein 

 undi- 

 Kested. 



Protein 

 digested. 



Protein 

 diirest«d. 



ParU of 

 protein 

 diirested 

 by 1 part 

 papain. 





eo. 



ee. 



ee. 



mg. 



mg. 



ma. 



Per cent. 



1 



25 



23 



2 



10 



1.158 



70 



6.7 



7.0 



2 



25 



21 



4 



20 



1,128 



100 



8.2 



5.0 



8 



26 



19 



6 



30 



1.112 



116 



9.6 



3.8 



4 



25 



17 



8 



40 



1.086 



192 



15.7 



4.8 



5 



25 



IS 



10 



60 



997 



231 



18.8 



4.6 



6 



26 



13 



12 



60 



981 



247 



20.2 



4.1 



7 



26 



11 



14 



70 



962 



266 



21.7 



3.8 



8 



26 



9 



16 



80 



941 



287 



23.4 



3.6 



9 



25 



7 



18 



90 



896 



332 



27.1 



3.7 



10 



26 



6 



20 



100 



8U 



417 



34.0 



8.4 



This is a duplicate analysis of sample 5, and is included to show how close arreenient may 

 be expected when dealing with low-grade gums. 



No. 6. Ceylon papain. — This sample was obtained from Mead 

 Johnson and Company, Jersey City, U. S. A, It is considerably 

 lighter in color than the preceding, being approximately a mean 

 between grades 1 and 2. The analysis is shown in Table VIII. 



Table VIII. — Analysis of Ceylon papain, sample 6. 



No. of 

 flask. 



Milk. 



Water. 



Papain 

 solution. 



Papain. 



Protein 

 undi- 

 gested. 



Protein 

 digested. 



Protein 

 digested. 



Parts of 

 protein 

 digested 

 by 1 part 

 papain. 



cc. 



ce. 



ee. 



mo. 



mo. 



ma. 



Percent. 





1 



25 



23 



2 



10 



941 



220 



19.0 



22.0 



2 



25 



21 



4 



20 



790 



371 



31.9 



18.6 



3 



25 



19 



6 



30 



697 



464 



40.0 



16.4 



4 



26 



17 



8 



40 



614 



547 



47.2 



18.7 



6 



25 



15 



10 



50 



532 



629 



54.3 



12.6 



6 



25 



13 



12 



60 



482 



679 58. 5 



11.8 



7 



26 



11 



14 



70 



451 



710 



61.8 



10.1 



8 



25 



9 



16 



80 



412 



749 



64.6 



9.4 



9 



26 



7 



18 



90 



383 



778 



67.1 



7.4 



10 



26 



6 



20 



100 



365 



796 



68.6 



6.9 



Protein in blank = 1,161 milligrams. 



Starch absent. 



Acidity of papain solution aa HC1=; 0.007 per cent. 



Mead Johnson & Co. states that this is an unusually light -colored specimen of Ceylon gum. 



No. 7. Ceylon papain. — This sample was obtained from Mead 

 Johnson and Company. It consists of both dark- and light- 

 colored fragments, and may be classified as grade 2 mixed. The 

 results of the analysis are shown in Table IX. 



