基于半纤维素的可喷雾且可生物降解的用于大白菜生长的农药地膜
Hemicelluloses-based sprayable and biodegradable pesticide mulch films for Chinese cabbage growth.
作者信息
Zhang Xueqin, Gao Dahui, Luo Wenhan, Xiao Naiyu, Xiao Gengsheng, Li Zengyong, Liu Chuanfu
机构信息
College of Light Industry and Food Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; Guangdong Key Laboratory of Science and Technology of Lingnan Specialty Food, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
College of Light Industry and Food Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
出版信息
Int J Biol Macromol. 2023 Jan 15;225:1350-1360. doi: 10.1016/j.ijbiomac.2022.11.193. Epub 2022 Nov 24.
In this study, one high-performance hemicelluloses (HC)-based sprayable and biodegradable pesticide mulch film was developed. Firstly, HC was transesterified with vinyl acetate (VA) to improve its solubility and film-forming ability. Then abamectin (ABA) was encapsulated by β-cyclodextrin (β-CD) to endow mulch film persistent anti-pesticide activity. After that, sodium alginate (SA) and gelatin were added to develop the mechanical performances of the mulch film. As a result, the obtained mulch film showed good characteristics, with optimum mechanical strength, elongation at break, water vapor permeability (WVP), swelling ratio (SR), and weight loss (biodegradability) of 7.9 ± 0.3 MPa, 43.6 ± 2.0 %, 2.1 ± 0.1 × 10 g mm m s kPa, 73.8 ± 2.0 %, and 69.3 %, respectively. After covering with mulch film, the soil moisture and temperature were developed to 90.8 % and 19.3 ± 0.2 °C, respectively, which could facilitate Chinese cabbage growth, with optimum germination rate of 98.6 ± 6.4 %.
在本研究中，开发了一种基于高性能半纤维素（HC）的可喷雾且可生物降解的农药地膜。首先，将HC与醋酸乙烯酯（VA）进行酯交换反应以提高其溶解性和成膜能力。然后，用β-环糊精（β-CD）包封阿维菌素（ABA），使地膜具有持久的抗农药活性。之后，添加海藻酸钠（SA）和明胶以改善地膜的机械性能。结果，所得地膜表现出良好的特性，其最佳机械强度、断裂伸长率、水蒸气透过率（WVP）、溶胀率（SR）和失重（生物降解性）分别为7.9±0.3兆帕、43.6±2.0%、2.1±0.1×10克·毫米·米·秒·千帕、73.8±2.0%和69.3%。覆盖地膜后，土壤湿度和温度分别提高到90.8%和19.3±0.2℃，这有利于大白菜生长，最佳发芽率为98.6±6.4%。
Zotero 插件