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  • Author or Editor: Russell Rouseff x
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Potassium, Ca, Mg, Na, and Zn were determined in ‘Marsh’ grapefruit peel during 2 growing seasons from September through May. Peel mineral concentrations, measured as mg·g-1 fresh peel weight, were: K (2.79-3.52), Ca (0.55-0.96), Mg (0.18-0.28), Na (0.003-0.034), and Zn (0.001-0.002). Freezing temperatures resulted in higher peel concentrations for K but lower concentrations for Ca and Mg.

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