Plasma application for detoxification of Jatropha phorbol esters

11th Asia Pacific Conference on Plasma Science and Technology;25th Symposium on Plasma Science for Materials

Kongmany, S.^1 ; Matsuura, H.^2 ; Furuta, M.^2 ; Okuda, S.^2 ; Imamura, K.^2 ; Maeda, Y.^2

Graduate School of Engineering, Osaka Prefecture University, Gakuen-cho 1-2, Sakai, Nakaku, Osaka 599-8570, Japan^1

Osaka Prefecture University, Gakuen-cho 1-2, Sakai, Nakaku, Osaka 599-8570, Japan^2

关键词: Dielectric barrier discharge plasmas;    High voltage;    Hydroxyl radicals;    Input power;    Jatropha curcas;    Phorbol esters;    Plasma irradiations;    Solution samples;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/441/1/012006/pdf
DOI  :  10.1088/1742-6596/441/1/012006

来源: IOP

【 摘 要 】

Atmospheric pressure non-thermal dielectric barrier discharge (DBD) plasma generated by helium gas at high voltage and input power of about 50 W was first applied to detoxification of Jatropha curcas phorbol esters (J. PEs) as well as standard phorbol ester (4β-12-O-tetradecanoyl phorbol-13-acetate, TPA) in water and methanol. Plasma irradiation on the solution sample was conducted for 15 min. In aqueous solution, only 16% of TPA was degraded and complete degradation of J. PEs was observed. On the contrary, complete degradation of both TPA and J. PEs in methanol was achieved by the same plasma irradiation condition. Hydroxyl radical (OH) generated by plasma irradiation of the solution is expected as the main radical inducing the degradation of PEs.