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[The study on the effect of LBP on cleaning hydroxygen free radical by EPR technique].

OBJECTIVE
To study the effect of Lycium barbarum polysaccharides (LBP) on cleaning hydroxygen free radical.


METHODS
EPR.


RESULT
When the concentrations of LBP were 0.25 mg/ml and 1.0 mg/ml, the cleaning rates of LBP to hydroxygen free radical were 18.64% and 87.29%.


CONCLUSION
LBP in low concentration can obviously clean hydroxygen free radical, but its clearance ability in high concentration descends.