Objective: To study the changes of the water content

superoxide dismutase(SOD)

peroxidase(POD) and lipid oxidation end-products of malondialdehyde(MDA) during the storage of Lycii Fructus

to study the mechanism of ‘Oil-spilling’

and establish its scientific storage methods. Method: Two storge methods

including temperature at 40℃

humidity of 75%

temperature at 4℃

humidity of 60%

respectively. Observed the appearance of Lycii Fructus at 0

20

40

60 days. While measured polysaccharide and water by Chinese Pharmacopoeia 2010 edition under the medlar method. MDA was tested by TBA method

SOD activity was measured by nitroblue tetrazolium reduction blue

POD was measured by nordihydroguaiaretic phenol method. Result: ‘Oil-spilling’ was started from 20 day at the storage of 40℃

humidity of 75%

inhibited time-dependent

while the moisture and MDA content were increased

SOD and POD activities were decreased. At the same time

there's no significantly changes under the storage of 4℃

humidity of 60%. Conclusion: Imoroer storage and the water content and reactive oxide species of wolfberry increased. Result in the cell structure and function damaged

cell membrane lipid peroxidated

or permeability changed.