Effect of bioaugmentation on lignocellulose degradation and antibiotic resistance genes removal during biogas residues composting

Zhong, Bin; An, Xiaopeng; An, Weijuan; Xiao, Xiaoshuang; Li, Hanguang; Xia, Xiang; Zhang, Qinghua

doi:10.1016/j.biortech.2021.125742

Cited by 45 publications

(12 citation statements)

References 45 publications

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“…(2011) . Based on the studies of Zhong et al. (2021) , bioaugmentation resulted in a decrease in the lignocellulose content of compost (rice straw, pig dung, and biogas residue) by 27.14–66.30 percent, which was accomplished through an increase in the activity of the xylanase enzyme by 98.5 percent throughout the compost operation's lifespan.…”

Section: Resultsmentioning

confidence: 99%

“…The addition of ligninolytic enzymes resulted in a 5.25 percent increase in lignin breakdown, according to Feng et al (2011). Based on the studies of Zhong et al (2021), bioaugmentation resulted in a decrease in the lignocellulose content of compost (rice straw, pig dung, and biogas residue) by 27.14-66.30 percent, which was accomplished through an increase in the activity of the xylanase enzyme by 98.5 percent throughout the compost operation's lifespan. When microbe inoculation is performed on compost, the stage of the compost at which inoculation is done can exert a significant influence on the rate of compost breakdown and humification.…”

Section: Optimization and Authenticationmentioning

confidence: 99%

See 1 more Smart Citation

Impact of composting factors on the biodegradation of lignin in Eichhornia crassipes (water hyacinth): A response surface methodological (RSM) investigation

Udume

Abu

Stanley

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 99%

Section: Optimization and Authenticationmentioning

confidence: 99%

Impact of composting factors on the biodegradation of lignin in Eichhornia crassipes (water hyacinth): A response surface methodological (RSM) investigation

Udume

Abu

Stanley

et al. 2022

Heliyon

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“…Part one, as a fresh sample, was used to measure moisture content, pH, and electrical conductivity. Part two was freeze-dried, ground, sieved through 0.1 mm sieve, and stored at 4 °C to test TOC, HS, HA, FA, N, P, K. Part three was stored at −80 °C for extracting DNA and a sequencing analysis [ 22 , 23 ]. All composting physicochemical properties were analyzed according to these methods described in our previous work [ 22 , 23 ] ( Table S1 ).…”

Section: Methodsmentioning

confidence: 99%

Exploration of the Vermiculite-Induced Bacterial Community and Co-Network Successions during Sludge–Waste Mushroom Co-Composting

Yu,

Wang,

et al. 2024

Microorganisms

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Vermiculite is a clay mineral with unique physical properties that plays a significant role in plant cultivation, soil remediation, and solid waste management. In this research, we first explored how vermiculite-to-microbe interactions evolved during sludge–waste mushroom residue co-composting. Vermiculite’s addition had a substantial impact on the microbial α and β diversities, significantly changed the microbial community pattern, and strengthened the composting nutrient circulation through the formation of more specialist and generalist species. The microbial community characteristics exhibited common co-networks for resisting composting environment stresses. Vermiculite contributed to enhancing the keystone taxa Proteobacteria and Actinobacteriota and caused the ecological function network to diversify in the warming and maturation phases, with more complexity and tightness in the thermophilic phase (with super-generalist species existing). The enhanced microbial interactions induced by vermiculite possessed a greater capacity to facilitate the metabolisms of carbohydrates and amino acids and cellulolysis, thereby promoting composting humification, and nitrogen retention in the final compost and composting maturity. These findings are helpful for us to understand the biological process mechanisms of the effect of vermiculite additives on composting and contribute to the establishment of a theoretical framework for enhancing the microbial interactions in composting systems by adding vermiculite in practical applications.

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“…Agricultural byproducts, mainly livestock manure (3.8 billion tons) and crop straw (0.8 billion tons), are largely produced in China due to intensive livestock farming and crop production [1,2]. The exacerbated development of these wastes put pressure on croplands, causing various pollutions in most farming communities [3].…”

Section: Introductionmentioning

confidence: 99%

Moisture-Induced Effects on Lignocellulosic and Humification Fractions in Aerobically Composted Straw and Manure

et al. 2023

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Humic substances affect compost stability and maturation. However, the intricate structure of lignocellulosic materials hinders the biodegradation of cellulose, hemicellulose, and lignin, often promoting the use of synthetic additives which results in microbial inactivation and death. Therefore, this study examined the effects of optimal moisture levels (MC1 = 45%, MC2 = 55%, and MC3 = 65%) on lignocellulosic and humification fractions in aerobically composted straw and manure. The study showed that 65% moisture content was more efficient in decomposing cellulose, hemicellulose, and lignin, with hemicellulose (115.3% w/w ≈ 47.1%) degrading more than cellulose (76.0% w/w ≈ 39.5%) and lignin (39.9% w/w ≈ 25.9%). However, in compost heaps with 45% moisture, the humic acid concentration increased significantly by 12.4% (3.1% w/w) and 17.3% (4.3% w/w) compared with 55% and 65% moisture, respectively. All moisture levels increased the mineralization of humic substances, but the index measured was highest at 65% MC (23.8% w/w) and lowest at 45% MC (18% w/w). In addition, the humification rate showed the trend: 0.083% w/w > 0.087% w/w > 0.100% w/w for MC1, MC2, and MC3, respectively. Overall, the results indicate that an initial moisture content of 65% is aerobically efficient for the conversion of corn straw and cow manure into stable and mature compost.

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Effect of bioaugmentation on lignocellulose degradation and antibiotic resistance genes removal during biogas residues composting

Cited by 45 publications

References 45 publications

Impact of composting factors on the biodegradation of lignin in Eichhornia crassipes (water hyacinth): A response surface methodological (RSM) investigation

Impact of composting factors on the biodegradation of lignin in Eichhornia crassipes (water hyacinth): A response surface methodological (RSM) investigation

Exploration of the Vermiculite-Induced Bacterial Community and Co-Network Successions during Sludge–Waste Mushroom Co-Composting

Moisture-Induced Effects on Lignocellulosic and Humification Fractions in Aerobically Composted Straw and Manure

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