[8p-E311-1~19] 8.4 Plasma life sciences

6:30 PM - 6:45 PM JST(9:30 AM - 9:45 AM UTC)

[8p-E311-19] Localization of Radicals in Atmospheric-Pressure Plasma-Irradiated Rice Seeds: ESR Analysis of Seed Hulls and Cellulose

〇(M2)Koki Ito¹, Hiroshi Hashizume², Inoue Kenichi^1,2, Kondo Takashi², Ishikawa Kenji^1,2, Hori Masaru², Tanaka Hiromasa^1,2 (1.Nagoya Univ.Eng., 2.Nagoya Univ. cLPS)

Keywords:

plasma,seed,ESR

This study investigated the mechanism behind germination promotion in rice seeds by atmospheric-pressure plasma irradiation using ESR analysis. The results showed a significant increase in carbon-derived radicals (g=2.019) in plasma-irradiated hulled seeds and cellulose (a main component of hulls). Conversely, brown rice without hulls exhibited much lower radical induction. This suggests that plasma-generated radicals accumulate mainly in the seed hulls, originating from cellulose modification.