淡江大學機構典藏:Item 987654321/125757
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    题名: Enhancing nematicidal effect of prodigiosin via micro-encapsulation using chitosan as a novel carrier substance
    作者: Wang, San-lang
    关键词: Chitosan;Prodigiosin;Encapsulated microparticles;Black pepper nematodes
    日期: 2024-04-23
    上传时间: 2024-07-31 12:12:05 (UTC+8)
    出版者: Springer
    摘要: In this study, Chitosan (CS) was newly found as an effective carrier for micro-encapsulation of Pg by spray drying technique for enhancing its bioactivity. Among various tested polymers, CS was screened as the most suitable substance for creating encapsulated Pg/CS microparticles (E-Pg/CS-MPs) with high recovery yield and good nanoscale properties. CS was further combined with other carbohydrate polymers and used for micro-encapsulation of Pg, however, no enhancing yield or better properties of encapsulated Pg microparticles were found. Further experiments indicated that the size of the spaying needle of 5.5 μm and the Pg concentration used at 0.05% were the most effective for producing E-Pg/CS-MPs. In nanoscale properties characterization, the E-Pg/CS-MPs were found spherical with smooth surfaces, good stability (Zeta potential of + 80.1 mV), and average sizes at 529.5 nm. Especially, the E-Pg/CS-MPs demonstrated a potent nematicidal effect against both J2-nematodes and their egg-hatching, besides, the activity of E-Pg/CS-MPs was improved by about fourfold compared with pure Pg. The molecular docking and enzyme inhibition assays suggested the possible pathway of the nematicidal effect of Pg released from E-Pg/CS-MPs via inhibition of acetylcholinesterase. This study thus provides a novel and effective protocol to produce E-Pg/CS-MPs with potential use for managing black pepper nematodes.
    關聯: Research on Chemical Intermediates 50(04)
    DOI: 10.1007/s11164-024-05275-9
    显示于类别:[化學學系暨研究所] 期刊論文

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