Effect of crosslinking on nanocellulose superabsorbent biodegradability

Laila Hossain; Ruth M.Barajas Ledesma; Joanne Tanner; Gil Garnier

doi:10.1016/j.carpta.2022.100199

Effect of crosslinking on nanocellulose superabsorbent biodegradability

Laila Hossain, Ruth M.Barajas Ledesma, Joanne Tanner, Gil Garnier

Chemical & Biological Engineering

Research output: Contribution to journal › Article › Research › peer-review

15 Citations (Scopus)

Abstract

Superabsorbent polymer (SAP) is an excellent material to absorb and retain a wide range of fluids inside its structure, making it desirable to engineer advanced applications. However, commercial SAPs are products of the petrochemistry, and their non-biodegradability and end of life are significant environmental issue. In this study, we have developed TEMPO oxidized nanocellulose superabsorbent and quantified the effect of crosslinking on biodegradation in soil under enzymatic (cellulase) assisted conditions. CO₂ emission shows that both type of SAP emits similar amount of CO₂. Hydrolysis of residual SAPs in soil after specific time intervals shows that chemically crosslinked SAP degrades to a higher extent (∼56%) compared to neat nanocellulose SAP (∼41%). However, without enzyme, their degradation are similar (∼8–12%) and much lower than under enzymatic condition. These results suggest that nanocellulose SAPs: both neat and crosslinked -can easily and rapidly be degraded at home or in the compost of the garden under proper enzymatic assisted conditions.

Original language	English
Article number	100199
Number of pages	6
Journal	Carbohydrate Polymer Technologies and Applications
Volume	3
DOIs	https://doi.org/10.1016/j.carpta.2022.100199
Publication status	Published - Jun 2022

Keywords

Biodegradation
Cellulase
CO
Crosslinked
Inhibition
Nanocellulose
SAP

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10.1016/j.carpta.2022.100199

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title = "Effect of crosslinking on nanocellulose superabsorbent biodegradability",

abstract = "Superabsorbent polymer (SAP) is an excellent material to absorb and retain a wide range of fluids inside its structure, making it desirable to engineer advanced applications. However, commercial SAPs are products of the petrochemistry, and their non-biodegradability and end of life are significant environmental issue. In this study, we have developed TEMPO oxidized nanocellulose superabsorbent and quantified the effect of crosslinking on biodegradation in soil under enzymatic (cellulase) assisted conditions. CO2 emission shows that both type of SAP emits similar amount of CO2. Hydrolysis of residual SAPs in soil after specific time intervals shows that chemically crosslinked SAP degrades to a higher extent (∼56%) compared to neat nanocellulose SAP (∼41%). However, without enzyme, their degradation are similar (∼8–12%) and much lower than under enzymatic condition. These results suggest that nanocellulose SAPs: both neat and crosslinked -can easily and rapidly be degraded at home or in the compost of the garden under proper enzymatic assisted conditions.",

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author = "Laila Hossain and Ledesma, {Ruth M.Barajas} and Joanne Tanner and Gil Garnier",

note = "Funding Information: This work was supported by Food and Dairy Graduate Research Industry Partnership, Monash University and Meat and Livestock Australia (MLA). The authors acknowledge the Department of Chemistry, Monash University, for the HPLC and GC facilities and Mr. Phillip Holt for his assistance in operating HPLC. Funding Information: This work was supported by Food and Dairy Graduate Research Industry Partnership, Monash University and Meat and Livestock Australia (MLA). The authors acknowledge the Department of Chemistry, Monash University, for the HPLC and GC facilities and Mr. Phillip Holt for his assistance in operating HPLC. Publisher Copyright: {\textcopyright} 2022",

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AU - Hossain, Laila

AU - Ledesma, Ruth M.Barajas

AU - Tanner, Joanne

AU - Garnier, Gil

N1 - Funding Information: This work was supported by Food and Dairy Graduate Research Industry Partnership, Monash University and Meat and Livestock Australia (MLA). The authors acknowledge the Department of Chemistry, Monash University, for the HPLC and GC facilities and Mr. Phillip Holt for his assistance in operating HPLC. Funding Information: This work was supported by Food and Dairy Graduate Research Industry Partnership, Monash University and Meat and Livestock Australia (MLA). The authors acknowledge the Department of Chemistry, Monash University, for the HPLC and GC facilities and Mr. Phillip Holt for his assistance in operating HPLC. Publisher Copyright: © 2022

PY - 2022/6

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N2 - Superabsorbent polymer (SAP) is an excellent material to absorb and retain a wide range of fluids inside its structure, making it desirable to engineer advanced applications. However, commercial SAPs are products of the petrochemistry, and their non-biodegradability and end of life are significant environmental issue. In this study, we have developed TEMPO oxidized nanocellulose superabsorbent and quantified the effect of crosslinking on biodegradation in soil under enzymatic (cellulase) assisted conditions. CO2 emission shows that both type of SAP emits similar amount of CO2. Hydrolysis of residual SAPs in soil after specific time intervals shows that chemically crosslinked SAP degrades to a higher extent (∼56%) compared to neat nanocellulose SAP (∼41%). However, without enzyme, their degradation are similar (∼8–12%) and much lower than under enzymatic condition. These results suggest that nanocellulose SAPs: both neat and crosslinked -can easily and rapidly be degraded at home or in the compost of the garden under proper enzymatic assisted conditions.

AB - Superabsorbent polymer (SAP) is an excellent material to absorb and retain a wide range of fluids inside its structure, making it desirable to engineer advanced applications. However, commercial SAPs are products of the petrochemistry, and their non-biodegradability and end of life are significant environmental issue. In this study, we have developed TEMPO oxidized nanocellulose superabsorbent and quantified the effect of crosslinking on biodegradation in soil under enzymatic (cellulase) assisted conditions. CO2 emission shows that both type of SAP emits similar amount of CO2. Hydrolysis of residual SAPs in soil after specific time intervals shows that chemically crosslinked SAP degrades to a higher extent (∼56%) compared to neat nanocellulose SAP (∼41%). However, without enzyme, their degradation are similar (∼8–12%) and much lower than under enzymatic condition. These results suggest that nanocellulose SAPs: both neat and crosslinked -can easily and rapidly be degraded at home or in the compost of the garden under proper enzymatic assisted conditions.

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Effect of crosslinking on nanocellulose superabsorbent biodegradability

Abstract

Keywords

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