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As the composition of soybean lecithins depends on the growing, storing, and processing conditions of the beans, their functional properties may widely vary. Up to now, confusion exists about the underlying mechanisms responsible for the macroscopically observed differences. As zeta-potential measurements indicated that the poor O/W emulsion stabilizing effect of powdered soybean lecithin cannot...
Dissolved organic matter (DOM) plays a significant role in protecting freshwater organisms against metal toxicity. To study this, reverse osmosis (RO) has been widely used as a highly efficient method for rapid collection of large quantities of DOM from natural surface waters. The objective of this study was to examine the potential impact of the RO isolation technique on the protective effects of...
Six highland Andisols along an E-W sequence in Java Island, Indonesia were sampled with the objective to assess the influence of the change of parent ash materials on surface reactivity of Andisols, with emphasis on short-range order mineral constituents and active Al and Fe compounds on fluoride and phosphate sorption. Because of the variety in parent ash materials and under the typical environmental...
The uptake of 32 P by roots of Kallar grass [Leptochloa fusca (L.) Kunth] to assess P uptake from different depths was investigated in two soils differing in salinity. The isotope was introduced at three depths (5, 15 and 25 cm) in the profile and uptake was assessed by 32 P recovery in the herbage on two successive harvests (II and III) after the initial establishment period (harvest...
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