Hemicellulose-based nanocomposites coating delays lignification of green asparagus by introducing AKD as a hydrophobic modifier

Zeshan Tian, Renfeng Zhang, Yuxin Liu, Jiasai Xu, Xinliang Zhu, Tingyao Lei and Kai Li

Renewable Energy, 2021, vol. 178, issue C, 1097-1105

Abstract: Fresh green asparagus is prone to lignify after harvest due to its high respiration rate and secretion of secondary metabolites regulated by enzymes generated during storage. In this work, a dense hemicellulose-based coating containing hemicellulose, cellulose nanofibers, and montmorillonite (MMT) was prepared and used as a coating to reduce the respiration rate of green asparagus, with which the shelf life of green asparagus was prolonged from 5 days to 7 days. Alkyl ketene dimer (AKD) was used as a hydrophobizer and a crosslinking agent to reduce humidity sensitivity by introducing hydrophobic fatty acid chains to nanoparticles for increased structural stability and respiratory barrier property hemicellulose-based film in high humidity conditions. Our study proved that AKD modified coating with nature-derived nanomaterials could effectively increase respiratory barrier property, slow down the secretion of lignification-involved enzymes, and regulating the conversion of phenolic compounds to the lignin monomers.

Keywords: Hemicellulose; Alkyl ketene dimer; Lignification; Green asparagus; Enzyme (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:178:y:2021:i:c:p:1097-1105

DOI: 10.1016/j.renene.2021.06.096

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