Table 6.
The detected concentration of preservatives in the wild plants (Unit : mg/kg)

Name Scientific Name Propionic acid Sorbic acid Benzoic acid Others1)
Persimmon leaf Diospyros kaki -2) - - -
Bamboo leaf A Phyllostachys bambusoides - - 19.852 -
Bamboo leaf B Phyllostachys bambusoides - 5.630 8.627 -
Korean Berchimia leaf A Berchemia berchemiaefolia - - - -
Korean Berchimia leaf B Berchemia berchemiaefolia - - - -
Ramie leaf A Boehmeria nivea 61.324 - 21.839 -
Ramie leaf B Boehmeria nivea 62.726 - 21.399 -
Pine needles A Pinus densiflora - - 15.293 -
Pine needles B Pinus densiflora - - - -
Mugwort A Artemisia princeps Pamp - - - -
Mugwort B Artemisia princeps Pamp - - 10.297 -
Kudzu leaf A Pueraria lobata Willd - 24.995 - -
Kudzu leaf B Pueraria lobata Willd - - 8.201 -
Nut pine leaf Pinus koraiensis - - 9.102 -
Sasa borealis Sasa borealis(Hak.) Makino - - - -
Lotus leaf Nelumbo nucifera - - - -
Kuansh Hemerocallis fulva - - - -
Oak tree leaf Quercus dentata - - - -
Chrysanthemum zawadskii Chrysanthemum zawadskii - - - -
Chinese pepper leaf Zanthoxylum schinifolium - - - -
Taro leaf Colocasia esculenta - - - -
DHA, POBM, POBE, POBIP, POBP, POBIB, POBB
Not detected