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The Effects of Exogenous Ba2+?on the Lipoxygenase Catalytic System(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年06期
Page:
1053-1056
Research Field:
Publishing date:

Info

Title:
The Effects of Exogenous Ba2+?on the Lipoxygenase Catalytic System
Author(s):
CAI Yan;  ZHOU Hong-bo;  JU Jian-feng;  WU Jin-ming
School of Chemistry and Chemical Engineering，Nantong University，Nantong 226019，China
Keywords:
Lipoxygenase;  Ba2+;  Conformation;  Hydroperoxide
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2015.06.1053
Abstract:
Lipoxygenase (LOX )can catalyze the oxidation of polyunsaturated fatty acids and their-esters containing the cis,cis-1,4-pentadiene moiety to the corresponding hydroperoxides. The effect of exogenous Ba2+on the conformation and catalytic performance of LOX on soybean oil was observed. The addition of exogenous Cu2+in LOX solvent strengthened the absorbance A360in UV spectrum from 0.1 to 0.4. Exogenous Ba2+could quench the fluorescence excitation spectra of LOX slightly (by 1.2%). When the addition concentration of Ba2+was 4 mmol.L-1, the total yield of soybean oil hydroperoxide catalyzed by LOX increased from 8% to 18%.

References:

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Last Update: 2016-01-07