Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting

Lignocellulosic materials have a complex physicochemical composition and structure that reduces their decomposition rate and hinders the formation of humic substances during composting. Therefore, a composting experiment was conducted to evaluate the effects of different C/N ratios on lignocellulose...

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Autores principales:	Huizhen Yang, He Zhang, Huizhen Qiu, Dominic Kwadwo Anning, Mengchan Li, Youling Wang, Chunhong Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	C/N ratio aerobic composting lignocellulose degradation rate enzyme activity Plant culture SB1-1110
Acceso en línea:	https://doaj.org/article/77d5fa50d0824ed490fa682e2048bf93
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spelling	oai:doaj.org-article:77d5fa50d0824ed490fa682e2048bf932021-11-25T17:47:32ZEffects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting10.3390/horticulturae71104822311-7524https://doaj.org/article/77d5fa50d0824ed490fa682e2048bf932021-11-01T00:00:00Zhttps://www.mdpi.com/2311-7524/7/11/482https://doaj.org/toc/2311-7524Lignocellulosic materials have a complex physicochemical composition and structure that reduces their decomposition rate and hinders the formation of humic substances during composting. Therefore, a composting experiment was conducted to evaluate the effects of different C/N ratios on lignocellulose (cellulose, hemicellulose and lignin) degradation and the activities of corresponding enzymes during aerobic composting. The study had five C/N ratios, namely, T1 (C/N ratio of 15), T2 (C/N ratio of 20), T3 (C/N ratio of 25), T4 (C/N ratio of 30) and T5 (C/N ratio of 35). The results showed that treatments T3 and T4 had the highest rate of degradation of cellulose and hemicellulose, while treatment T3 had the highest rate of degradation of lignin. Among the five treatments, treatment T3 enhanced the degradation of the lignocellulose constituents, indicating a degradation rate of 6.86–35.17%, 15.63–44.08% and 31.69–165.60% for cellulose, hemicellulose and lignin, respectively. The degradation of cellulose and lignin occurred mainly at the thermophilic and late mesophilic phases of composting, while hemicellulose degradation occurred at the maturation phase. Treatment T3 was the best C/N ratio to stimulate the activities of manganese peroxidase, lignin peroxidase, polyphenol oxidase and peroxidase, which in turn promoted lignocellulose degradation.Huizhen YangHe ZhangHuizhen QiuDominic Kwadwo AnningMengchan LiYouling WangChunhong ZhangMDPI AGarticleC/N ratioaerobic compostinglignocellulosedegradation rateenzyme activityPlant cultureSB1-1110ENHorticulturae, Vol 7, Iss 482, p 482 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	C/N ratio aerobic composting lignocellulose degradation rate enzyme activity Plant culture SB1-1110
spellingShingle	C/N ratio aerobic composting lignocellulose degradation rate enzyme activity Plant culture SB1-1110 Huizhen Yang He Zhang Huizhen Qiu Dominic Kwadwo Anning Mengchan Li Youling Wang Chunhong Zhang Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting
description	Lignocellulosic materials have a complex physicochemical composition and structure that reduces their decomposition rate and hinders the formation of humic substances during composting. Therefore, a composting experiment was conducted to evaluate the effects of different C/N ratios on lignocellulose (cellulose, hemicellulose and lignin) degradation and the activities of corresponding enzymes during aerobic composting. The study had five C/N ratios, namely, T1 (C/N ratio of 15), T2 (C/N ratio of 20), T3 (C/N ratio of 25), T4 (C/N ratio of 30) and T5 (C/N ratio of 35). The results showed that treatments T3 and T4 had the highest rate of degradation of cellulose and hemicellulose, while treatment T3 had the highest rate of degradation of lignin. Among the five treatments, treatment T3 enhanced the degradation of the lignocellulose constituents, indicating a degradation rate of 6.86–35.17%, 15.63–44.08% and 31.69–165.60% for cellulose, hemicellulose and lignin, respectively. The degradation of cellulose and lignin occurred mainly at the thermophilic and late mesophilic phases of composting, while hemicellulose degradation occurred at the maturation phase. Treatment T3 was the best C/N ratio to stimulate the activities of manganese peroxidase, lignin peroxidase, polyphenol oxidase and peroxidase, which in turn promoted lignocellulose degradation.
format	article
author	Huizhen Yang He Zhang Huizhen Qiu Dominic Kwadwo Anning Mengchan Li Youling Wang Chunhong Zhang
author_facet	Huizhen Yang He Zhang Huizhen Qiu Dominic Kwadwo Anning Mengchan Li Youling Wang Chunhong Zhang
author_sort	Huizhen Yang
title	Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting
title_short	Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting
title_full	Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting
title_fullStr	Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting
title_full_unstemmed	Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting
title_sort	effects of c/n ratio on lignocellulose degradation and enzyme activities in aerobic composting
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/77d5fa50d0824ed490fa682e2048bf93
work_keys_str_mv	AT huizhenyang effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting AT hezhang effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting AT huizhenqiu effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting AT dominickwadwoanning effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting AT mengchanli effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting AT youlingwang effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting AT chunhongzhang effectsofcnratioonlignocellulosedegradationandenzymeactivitiesinaerobiccomposting
_version_	1718411993847693312

Effects of C/N Ratio on Lignocellulose Degradation and Enzyme Activities in Aerobic Composting

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