THE JOURNALOF INDUSTRIAL AND ENGINEERING CHEMISTRY 747 that peanuts contain 37.48 to 41.63 per cent of oil. Beattie, in Farmers' Bulletin No. 376, United States Department of Agriculture, says that the oil may run as high as 50 per cent in some peanuts. These results are evidently on the peanuts before roasting; after roasting the oil would be higher, due to a corresponding loss in water.Our results on the manufactured peanut butter do not show any more oil than may occur in the roasted peanut. The U. S. standards for peanut, olive and cottonseed oils as given by Leach are as follows:
RefractiveIodine value index at 25 0 C.
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