Hemicelluloses-based sprayable and biodegradable pesticide mulch films for Chinese cabbage growth

Xueqin Zhang; Dahui Gao; Wenhan Luo; Naiyu Xiao; Gengsheng Xiao; Zengyong Li; Chuanfu Liu

doi:10.1016/j.ijbiomac.2022.11.193

Hemicelluloses-based sprayable and biodegradable pesticide mulch films for Chinese cabbage growth

Int J Biol Macromol. 2023 Jan 15:225:1350-1360. doi: 10.1016/j.ijbiomac.2022.11.193. Epub 2022 Nov 24.

Authors

Xueqin Zhang¹, Dahui Gao², Wenhan Luo³, Naiyu Xiao⁴, Gengsheng Xiao⁵, Zengyong Li⁶, Chuanfu Liu⁷

Affiliations

¹ 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.
² College of Light Industry and Food Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China.
³ 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.
⁴ 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. Electronic address: xiaony81@163.com.
⁵ 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. Electronic address: Gshxiao@aliyun.com.
⁶ State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China. Electronic address: 13609763220@163.com.
⁷ State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.

PMID: 36436596
DOI: 10.1016/j.ijbiomac.2022.11.193

Abstract

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^-11 g mm m^-2 s^-1 kPa^-1, 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 %.

Keywords: Biocomposite; Hemicelluloses; Sprayable mulch film.

MeSH terms

Alginates
Pesticides*
Polysaccharides
Soil

Substances

hemicellulose
Pesticides
Polysaccharides
Soil
Alginates