Determination of Acidity, Total Polyphenols Content, Calcium, Magnesium and Phosphorous in Sea Buckthorn Berries

Abstract

In Romania the sea buckthorn (Hippophae rhamnoides) is prevalent naturally grown in hills territories, Meridional and Eastern Carpathians valleys from Moldavia and Muntenia and also in the Danube Delta. It is a valuable medicinal plant being a rich source of all nutrients and phytochemicals. This paper presents the results of analyzes performed on sea buckthorn berries collected from two geographical areas: Bacau and Buzau. The juice of sea buckthorn fruits, the calcined pulp and the calcined integral fruits were analysed. Physico-chemical analysis of integral sea buckthorn berries showed: pH values in the range 3.1-3.3, acidity expressed as malic acid in the range 1.97-2.02% and polyphenols content in the range 94.65 mg GAE/g d.w. and 78.33 mg GAE/g d.w., respectively. Macro elements as Ca, Mg and P were also determined. The amount of calcium in sea buckthorn fruit was found in the range 57.71 - 80 mg/100g d.w., magnesium in the range 30.56-35.61 mg/100g d.w., and phosphorus 5.34-20.56 mg/100g d.w.