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Updated: Jan 29, 2026

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Extraction and Characterization of Surfactants from Atmospheric Aerosols

Published on: April 21, 2017

Trichoderma polyalthiae UBZSN2-1の粗エチルアセテート抽出物でコーティングされたCO2マイクロナノバブルの界面活性剤複合体を用いた細菌性葉枯病の生物的防除の改善

Wasan Seemakram¹, Thanapat Suebrasri², Saranya Chantawong³

¹Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok 65000, Thailand.

Plants (Basel, Switzerland)

|January 28, 2026

Abstract:

The bacterium Xanthomonas oryzae pv. oryzae is an important pathogen that causes wilt leaf blight disease in rice (Oryza sativa L.), leading to a reduction in rice yield. Therefore, this study aimed to investigate the potential of a surfactant complex composed of CO₂ nanobubbles (CO₂-NBs) coated with sorbitan monostearate (Sp60) and a crude extract of Trichoderma polyalthiae as active ingredient delivery agents for controlling leaf blight under both laboratory and greenhouse conditions. The addition of Sp60 and crude extract as surfactants significantly influenced the size uniformity and stability of CO₂-NBs at the nano level, with the nanobubbles remaining intact in water for up to 14 days. In addition, CO₂-NBs with crude extract and Sp60 reduced the severity of wilt, with an minimum inhibitory concentration (MIC) value of 64 µg/mL and an minimum bactericidal concentration (MBC) value of 128 µg/mL, and inhibited the disease by more than 50% in greenhouse conditions. Therefore, this study presents a creative and eco-friendly approach to managing bacterial leaf blight in rice that is innovative and relevant to sustainable plant protection.

キーワード:

生物活性化合物二酸化炭素ナノバブル内生菌類界面活性剤

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