Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system

Xiuqi Wang; Cheinat Zohar-Perez; Yuying Zeng; Yunfan Zou; Yanxi Chen; Sitong Wu; Yanbo Wang; Sahar Arazi; Amos Nussinovitch; Yigal Achmon

doi:10.1016/j.eti.2023.103034

Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system

Xiuqi Wang, Cheinat Zohar-Perez, Yuying Zeng, Yunfan Zou, Yanxi Chen, Sitong Wu, Yanbo Wang, Sahar Arazi, Amos Nussinovitch^*, Yigal Achmon^*

^*Corresponding author for this work

Biotechnology and Food Engineering

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

4 Scopus citations

Abstract

The necessity to increase crop yields while minimizing adverse environmental impacts, has pushed agricultural practices towards finding new biodegradable materials for various agricultural applications. In this study, three types of carbohydrate beads, prepared of agar, alginate and gellan- gum, were tested for their environmental impact during a soil biodegradation process. To assess this impact the following measurements were taken: (1) soil-respiration (emitted CO₂, O₂ and CH₄) by respirometer, (2) measuring emissions of volatile organic compounds by proton-transfer-reaction-time of flight-mass-spectrometer and (3) residual phytotoxicity in the soil after the degradation process by greenhouse study. The results demonstrate that in a simulation system of soil degradation that lasted 40-days, the alginate macro-beads had the highest respiration rate with ∼217 CO₂(mg/g_dw) vs only 40 CO₂(mg/g_dw) for agar and none for gellan gum. This study provides evidence for the first time, that a distinctive volatile organic fingerprint cam be detected during the biodegradation process of different carbohydrates (59 m/z for agar, 114, 115 m/z for alginate and 81 m/z for all three). The emission of the volatile organic compounds which dissipated after a week of biodegradation in the soil, suggests that most of the metabolic activity was in the first week. Agar degradation showed a slight residual phytotoxicity affecting the growth of the consecutive crop (disappeared over time). These results can help to establish a future monitoring system for the degradation process of gum-beads that would better estimate the environmental impact and the beads’ fate in actual use in soils.

Original language	English
Article number	103034
Journal	Environmental Technology and Innovation
Volume	30
DOIs	https://doi.org/10.1016/j.eti.2023.103034 https://doi.org/10.1016/j.eti.2023.103034
State	Published - May 2023

Keywords

Biodegradation
Gums
Soil respiration
Volatile organic compound
Phytotoxicity

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.eti.2023.103034

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Wang, X., Zohar-Perez, C., Zeng, Y., Zou, Y., Chen, Y., Wu, S., Wang, Y., Arazi, S., Nussinovitch, A., & Achmon, Y. (2023). Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system. Environmental Technology and Innovation, 30, Article 103034. https://doi.org/10.1016/j.eti.2023.103034, https://doi.org/10.1016/j.eti.2023.103034

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title = "Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system",

abstract = "The necessity to increase crop yields while minimizing adverse environmental impacts, has pushed agricultural practices towards finding new biodegradable materials for various agricultural applications. In this study, three types of carbohydrate beads, prepared of agar, alginate and gellan- gum, were tested for their environmental impact during a soil biodegradation process. To assess this impact the following measurements were taken: (1) soil-respiration (emitted CO2, O2 and CH4) by respirometer, (2) measuring emissions of volatile organic compounds by proton-transfer-reaction-time of flight-mass-spectrometer and (3) residual phytotoxicity in the soil after the degradation process by greenhouse study. The results demonstrate that in a simulation system of soil degradation that lasted 40-days, the alginate macro-beads had the highest respiration rate with ∼217 CO2(mg/g_dw) vs only 40 CO2(mg/g_dw) for agar and none for gellan gum. This study provides evidence for the first time, that a distinctive volatile organic fingerprint cam be detected during the biodegradation process of different carbohydrates (59 m/z for agar, 114, 115 m/z for alginate and 81 m/z for all three). The emission of the volatile organic compounds which dissipated after a week of biodegradation in the soil, suggests that most of the metabolic activity was in the first week. Agar degradation showed a slight residual phytotoxicity affecting the growth of the consecutive crop (disappeared over time). These results can help to establish a future monitoring system for the degradation process of gum-beads that would better estimate the environmental impact and the beads{\textquoteright} fate in actual use in soils.",

keywords = "Biodegradation, Gums, Soil respiration, Volatile organic compound, Phytotoxicity",

author = "Xiuqi Wang and Cheinat Zohar-Perez and Yuying Zeng and Yunfan Zou and Yanxi Chen and Sitong Wu and Yanbo Wang and Sahar Arazi and Amos Nussinovitch and Yigal Achmon",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2023",

month = may,

doi = "10.1016/j.eti.2023.103034",

language = "英语",

volume = "30",

journal = "Environmental Technology and Innovation",

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Wang, X, Zohar-Perez, C, Zeng, Y, Zou, Y, Chen, Y, Wu, S, Wang, Y, Arazi, S, Nussinovitch, A & Achmon, Y 2023, 'Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system', Environmental Technology and Innovation, vol. 30, 103034. https://doi.org/10.1016/j.eti.2023.103034, https://doi.org/10.1016/j.eti.2023.103034

TY - JOUR

T1 - Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system

AU - Wang, Xiuqi

AU - Zohar-Perez, Cheinat

AU - Zeng, Yuying

AU - Zou, Yunfan

AU - Chen, Yanxi

AU - Wu, Sitong

AU - Wang, Yanbo

AU - Arazi, Sahar

AU - Nussinovitch, Amos

AU - Achmon, Yigal

PY - 2023/5

Y1 - 2023/5

N2 - The necessity to increase crop yields while minimizing adverse environmental impacts, has pushed agricultural practices towards finding new biodegradable materials for various agricultural applications. In this study, three types of carbohydrate beads, prepared of agar, alginate and gellan- gum, were tested for their environmental impact during a soil biodegradation process. To assess this impact the following measurements were taken: (1) soil-respiration (emitted CO2, O2 and CH4) by respirometer, (2) measuring emissions of volatile organic compounds by proton-transfer-reaction-time of flight-mass-spectrometer and (3) residual phytotoxicity in the soil after the degradation process by greenhouse study. The results demonstrate that in a simulation system of soil degradation that lasted 40-days, the alginate macro-beads had the highest respiration rate with ∼217 CO2(mg/g_dw) vs only 40 CO2(mg/g_dw) for agar and none for gellan gum. This study provides evidence for the first time, that a distinctive volatile organic fingerprint cam be detected during the biodegradation process of different carbohydrates (59 m/z for agar, 114, 115 m/z for alginate and 81 m/z for all three). The emission of the volatile organic compounds which dissipated after a week of biodegradation in the soil, suggests that most of the metabolic activity was in the first week. Agar degradation showed a slight residual phytotoxicity affecting the growth of the consecutive crop (disappeared over time). These results can help to establish a future monitoring system for the degradation process of gum-beads that would better estimate the environmental impact and the beads’ fate in actual use in soils.

AB - The necessity to increase crop yields while minimizing adverse environmental impacts, has pushed agricultural practices towards finding new biodegradable materials for various agricultural applications. In this study, three types of carbohydrate beads, prepared of agar, alginate and gellan- gum, were tested for their environmental impact during a soil biodegradation process. To assess this impact the following measurements were taken: (1) soil-respiration (emitted CO2, O2 and CH4) by respirometer, (2) measuring emissions of volatile organic compounds by proton-transfer-reaction-time of flight-mass-spectrometer and (3) residual phytotoxicity in the soil after the degradation process by greenhouse study. The results demonstrate that in a simulation system of soil degradation that lasted 40-days, the alginate macro-beads had the highest respiration rate with ∼217 CO2(mg/g_dw) vs only 40 CO2(mg/g_dw) for agar and none for gellan gum. This study provides evidence for the first time, that a distinctive volatile organic fingerprint cam be detected during the biodegradation process of different carbohydrates (59 m/z for agar, 114, 115 m/z for alginate and 81 m/z for all three). The emission of the volatile organic compounds which dissipated after a week of biodegradation in the soil, suggests that most of the metabolic activity was in the first week. Agar degradation showed a slight residual phytotoxicity affecting the growth of the consecutive crop (disappeared over time). These results can help to establish a future monitoring system for the degradation process of gum-beads that would better estimate the environmental impact and the beads’ fate in actual use in soils.

KW - Biodegradation

KW - Gums

KW - Soil respiration

KW - Volatile organic compound

KW - Phytotoxicity

UR - http://www.scopus.com/inward/record.url?scp=85147251520&partnerID=8YFLogxK

U2 - 10.1016/j.eti.2023.103034

DO - 10.1016/j.eti.2023.103034

M3 - 文章

SN - 2352-1864

VL - 30

JO - Environmental Technology and Innovation

JF - Environmental Technology and Innovation

M1 - 103034

ER -

Assessment of the environmental impact of agar, alginate, and gellan gum carbohydrate gum macro beads biodegradation in a simulated agricultural field system

Abstract

Keywords

UN SDGs

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