S. M. DAS GUPTA 259
TABLE V
Relation between carotene and vitamin-A contents of milk and butter churned
therefrom
Milk |
Butter-fat |
||||
No. of sample |
Carotene |
Vitamin-A |
No. of sample |
Carotene |
Vitamin-A |
1 |
3.4 |
8.2 |
1 |
3.2 |
7.9 |
2 |
3.8 |
9.1 |
2 |
3.6 |
8.8 |
3 |
4.2 |
10.4 |
3 |
3.9 |
9.9 |
4 |
3.6 |
9.6 |
4 |
3.6 |
9.4 |
5 |
4.2 |
8.8 |
5 |
3.8 |
8.5 |
6 |
4.6 |
10.8 |
6 |
4.5 |
10.5 |
TABLE VI
Effect of storage on the carotene and vitamin-A contents of butter-fat kept in a
sterilised bottle sealed with paraffin wax
Melted butter |
||||
Fresh |
One |
Three |
Six |
|
R. W. value . . . |
24.3 |
24.2 |
24.8 |
23.8 |
Iodine value . . . |
35.6 |
35.8 |
36.2 |
37.6 |
Carotene (Y. U.) . . . |
2.4 |
2.1 |
1.8 |
1.2 |
Vitamin-A (B. U.) . . |
4.2 |
3.8 |
3.6 |
2.8 |