Essential Mineral Elements in Peanuts and Peanut Butter

Abstract

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.

Storage Stability of Whole and Nibbed, Conventional and High Oleic Peanuts (Arachis hypogeae L.)

“…The metal ions measured were iron (Fe), copper (Cu) and zinc (Zn) and were comparable to previous studies on the mineral composition of peanuts (Galvao et al, 1976;Jonnala et al, 2005). The (Lloyd et al, 1997).…”

Mycobiota profile, phenology, and potential toxicogenic and pathogenic species associated with stored groundnuts (Arachis hypogaea L.) from the Volta Region, Ghana

“…Crude protein ranges from 18.92% to 30.53%; carbohydrates ranges between 6.0% and 24.9%; and potassium, K values range between 1180 and 1693 mg/100 g, Na (19.0-40.0 mg/100 g), Ca (44-134 mg/100 g), and Mg (308-456 mg/100 g). The range of K, Na, and Mg on the 20 cultivars in Ghana was generally higher than the results from other workers (Galvao et al, 1976;Khalil & Chughtai, 1983;Oerise et al, 1974;Oke, 1967). Zinc, Zn, content ranged from 0 to 6.5 mg/100 g with a mean of 5.2 mg/100 g; Cu differed from 0 to 27 mg/100 g with a mean of 1.9 mg/100 g; Fe (0.2-3.7 mg/100 g; mean of 2.8 mg/100 g); and Mn (1.7-2.9 mg/100 g with a mean of 2.1/100 g).…”

“…All the varieties had appreciable amounts of Zn, Cu, Fe, and Mn except Kintampo local which had no zinc and copper. Same range of values were obtained in findings of Galvao et al (1976), Khalil and Chughtai (1983), Oerise et al (1974), andOke (1967). The amounts of micronutrients in the cultivars reported by were nutritionally significant because small quantities are needed by the body (Toomer, 2018).…”

Mineral Element Composition of Bovine Spleen and Separated Spleen Components

“…Cooked MSS and whole spleen are comparable to raw potatoes (4070 ppm) as a source of potassium (Watt and Merrill, 1963). Galvao et al (1976) reported that peanuts and peanut butter, other products in the food group with meat, contained 6870 ppm and 6820 ppm, respectively, of potassium. Assuming 100% availability of the element, log of MSS consumed in a meat product would supply about 2% of the 2000 mg/day potassium need reported by Sarett (1974).…”