Preparation of efficiently anti-fungal and hydrophobic coatings using lignin@clove essential oil based microcapsules

作者：Weisheng Han, Mengting Wang, Yan Yang, Haowen Yao, Wenbiao Zhang, La Hu, Jingda Huang · 发表于：Industrial Crops and Products · 年份：2025 · DOI：10.1016/j.indcrop.2025.120711 · 被引用次数：10 · 研究领域：Essential Oils and Antimicrobial Activity、Chemical synthesis and alkaloids、Phytochemical compounds biological activities

The use of plant essential oils as antimicrobial agents is affected by their inherent volatility, which makes the development of a long-release essential oil - based antimicrobial system a challenge. Here, an environmentally friendly method for preparing an essential oil-microcapsule anti-fungal coating system with high resistance to loss was reported by combining the controlled-release of essential oil with hydrophobicity. In the system, lignin was used as a sustainable and environmentally friendly encapsulation material to protect and control the release of clove essential oil (EOC), combing hexadecyltrimethylammonium bromide (CTAB) induced the formation of CTAB-lignin composites through electrostatic adsorption and π-π interactions. EOC was encapsulated with the CTAB-lignin composites to create microcapsules. Hydroxyethyl cellulose (HEC) was introduced as a binder, and methyltrimethoxysilane (MTMS) was used as a hydrophobic modifier to enhance the adhesion of microcapsules to the substrate and improve their hydrophobicity. The prepared CTAB-lignin@EOC microcapsule coating exhibited high controlled-release properties (remaining effective against fungal after a 28-day anti-fungal test) and good hydrophobicity (WCA=127.0°). Considering the low-cost and environmentally friendly characteristics of raw materials, the newly developed anti-fungal coating based on the microcapsule system contributes to the development and utilization of green biomass energy and offers a new perspec...