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Paper ID: 78

Synthesizing and characterization of CA/ZnO electrospun nanofiber as seed coating material for enhanced aerob paddy seed germination

Nur Syuhadatul Husna Binti Husny Zaim1, Siti Maslizah Abdul Rahman2*, Huey Ling Tan3, Noor Fitrah Abu Bakar4, and Mohamed Syazwan Osman5

1Plantation Technology and Management, Faculty of Plantation and Agrotechnology,

Universiti Teknologi MARA, Jalan Lembah Kesang 1/1-2, Kampung Seri Mendapat, 77300 Merlimau, Melaka, Malaysia

2School of Chemical Engineering, College of Engineering, University Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia

3EMZI-UiTM Nanoparticles Colloids & Interface Industrial Research Laboratory (NANO-CORE), School of Chemical Engineering, College of Engineering, Universiti Teknologi MARA, Cawangan Pulau Pinang,13500, Permatang Pauh, Pulau Pinang Malaysia

Email: lieza83mlk@uitm.edu.my

Agricultural cultivation is adversely affected by climate change causing food scarcity worldwide. In this work, sustainable electrospun seed coating of polysaccharide composite was developed as an advanced seed treatment to improvise agriculture cultivation system. The electrospun composite electrospun nanofiber coating (CNF) studied by varying the concentrations (12wt% to 17wt%) using biodegradable material, notably the cellulose acetate bio-polymer (CA). Next, the best concentration of CA synthesized with 100mg/l of ZnO nanoparticle (ZnO NPs) in producing nanofiber mat, characterized using UV-Vis, FTIR, SEM, water contact angle (WCA), membrane porosity, germination test and seed vigour Index-I to understand the physical and agronomic properties of the CNF as seed coating. Results indicated that CNF of 17% CA with 100mg/L of ZnO NPs produced beads-free homogenous morphological fiber with the nanometric scale of 526±139nm. Produced 17wt% of CA/ZnO electrospun nanofiber matrix results in high porosity and swelling properties of about 87% and 242%, respectively, which could significantly enhance water uptake, oxygen permeability and mass transfer rate projecting ideal seed coating materials in enhancing aerobic seeds germination, assist by the engineered nutrient delivery system. Furthermore, owing to the nanofibrous coating architecture, synthesized CNF with functional oxygen components presents hydrophilic nature that ameliorates environmental stresses such as drought and flooding and eventually accelerates crop germination and development.

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