Objective: To research on rationality of peeling in the habitat processing of Smilacis Glabrae Rhizoma. Method: The fresh Smilacis Glabrae Rhizoma was divided into three groups of peeling group

non-peeling group and peel group

then they were processed by drying at 35

55

80℃

in the shade and the sun

the content of total flavonoids was measured by UV with rutin as reference substance

the contents of taxifolin

astilbin and resveratrol ware determined by HPLC

the contents of five kinds of harmful heavy metals (Cu

Pb

Cd

Hg and As) were measured by ICP-MS

in order to compare the differences between them. Result: The contents of total flavonoids

taxifolin

astilbin and resveratrol in peel group were higher than those in peeling group and non-peeling group

the above ingredients in non-peeling group were higher than those in peeling group.The contents of Cu and As in peel group were higher than those in peeling group and non-peeling group

the content of Pb in peel group and non-peeling group were higher than that in peeling group

all elements of the three groups were lower than the limited values in 2015 edition of Chinese Pharmacopoeia. Conclusion: The effective components and the heavy metals of Smilacis Glabrae Rhizoma are concentrated in the epidermis

for medicinal purposes

you do not need to peel;for edible

in order to avoid heavy metal accumulation

you can choose to peel.