The effect of extractants on degradation of L-glutamate and L-arginine in the course of shaking and filtration at low temperature.
The effects of demineralized water (DEMI H(2)O) and 0.5 M ammonium acetate (0.5 M AAc) on losses of L-glutamic acid and L-arginine in the course of shaking and filtration at low temperature (6 degrees C) were tested. The concentration of L-glutamic acid decreased by 6.3% in DEMI H(2)O and by 4.9% in 0.5 M AAc, whereas the L-arginine concentration decreased by 6.0% (DEMI H(2)O) and 10.7% (0.5 M AAc). We found a significantly (P < 0.05) higher degradation of L-arginine in 0.5 M AAc compared with that of DEMI H(2)O.
Formánek
P
P
Department of Geology and Pedology, Mendel University of Agriculture and Forestry, Brno, Czech Republic. formanek@mendelu.cz
Klejdus
B
B
Vranová
V
V
D000085:Acetates / Q000737:chemistry*; D001120:Arginine / Q000737:chemistry*; D005374:Filtration; D018698:Glutamic Acid / Q000737:chemistry*; D012987:Soil; D014867:Water / Q000737:chemistry*
D000085:Acetates; D012987:Soil; D014867:Water; D018698:Glutamic Acid; D001120:Arginine; C018824:ammonium acetate