Essential mineral elements in peanuts and peanut butter
1976
Galvao, Leila C.A. | Lopez, Anthony | Williams, Harriet L.
Extract: Thirteen of the elements considered essential in human nutrition were determined in raw peanuts and peanut butter by atomic absorption spectrophotometry. Raw peanuts and peanut butter samples obtained from a commercial plant were prepared either by dry ashing or wet digestion. Statistical analysis of the data showed a difference at the 1% level of significance for the content of all the elements that were determined in raw peanuts and peanut butter, with the exception of calcium and potassium which showed a difference at the 5% level. The results obtained indicate that both raw peanuts and peanut butter are fairly good sources of four essential elements for which Recommended Dietary Allowances have been established. Seven other essential elements were found present in nutritionally significant quantities.
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