نتایج جستجو برای: potassium sorbate
تعداد نتایج: 77690 فیلتر نتایج به سال:
SOILS and sediments are nearly always at disequilibrium with respect to ion transformations (Sparks, 1987). The rate of bioavailability of contaminants in the environment can be reduced with increasing time (Pignatello and Xing, 1995). The observation that less sorbate is released with increasing contact time between the sorbent and sorbate is referred to as a residence time/aging effect (Pigna...
In the title salt, C(5)H(8)N(3) (+)·C(6)H(7)O(2) (-), the pyridine N atom of the 2,3-diamino-pyridine mol-ecule is protonated. The 2,3-diamino-pyridinium cation is essentially planar, with a maximum deviation of 0.068 (2) Å for one of the amino N atoms. The sorbate anion adopts an extended conformation. In the crystal structure, the protonated N atom and one of the two amino-group H atoms are h...
The effect of immersion solutions containing enterocin AS-48 alone or in combination with chemical preservatives on survival and proliferation of Listeria monocytogenes CECT 4032 inoculated on fresh alfalfa sprouts, soybean sprouts, and green asparagus was tested. Immersion treatments (5 min at room temperature) with AS-48 solutions (25 microg/ml) reduced listeria counts of artificially contami...
in the present study, optimization of active-blend coating formulation was investigated by response surface methodology (rsm). for this purpose, central composite design with four variables (concentration of carboxymethyl cellulose-pectin, ascorbic acid-citric acid, potassium sorbate and butylated hydroxyanisole ) were used. weight loss is selected as responses of model. on the base of minimum ...
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