Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion

doi:10.1016/j.cjche.2019.07.014

Chinese Journal of Chemical Engineering ›› 2020, Vol. 28 ›› Issue (2): 548-555.DOI: 10.1016/j.cjche.2019.07.014

• Energy, Resources and Environmental Technology • Previous Articles Next Articles

Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion

Xiaoli Xue^1,2, Zhimin Zong¹, Guanghui Liu¹, Xianyong Wei^1,3

1 Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China;
2 Key Laboratory of Changbai Mountain Animal and Plant Resource Utilization and Protection of Universities in Jilin Province, Jilin Agricultural Science and Technology University, Jilin 132101, China;
3 State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China

Received:2019-03-07 Revised:2019-07-21 Online:2020-05-21 Published:2020-02-28
Contact: Zhimin Zong
Supported by:
This work was supported by the Seed Fund from Jilin Agricultural Science and Technology University ([2016] No.Z02) and Undergraduate Scientific and Technical innovation of Jilin Province (Grant [2016] No. 030).

Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion

Xiaoli Xue^1,2, Zhimin Zong¹, Guanghui Liu¹, Xianyong Wei^1,3

1 Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, China;
2 Key Laboratory of Changbai Mountain Animal and Plant Resource Utilization and Protection of Universities in Jilin Province, Jilin Agricultural Science and Technology University, Jilin 132101, China;
3 State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University, Yinchuan 750021, China

通讯作者: Zhimin Zong
基金资助:
This work was supported by the Seed Fund from Jilin Agricultural Science and Technology University ([2016] No.Z02) and Undergraduate Scientific and Technical innovation of Jilin Province (Grant [2016] No. 030).

Abstract

Abstract: Spent auricularia auricular substrate (SAAS) was oxidatively degraded with aqueous hydrogen peroxide (AHPO)/ acetic anhydride (AAH) to produce carboxylic acids (CAs) under mild conditions. The results show that up to 53.6% of the organic matter in SAAS was converted to the soluble species (SSs). In total 122 CAs were detected in the SSs by the analysis with a gas chromatograph/mass spectrometer, which can be classified into 29 group components, mainly being aliphatic acids and along with small amount of aromatic acids. Among the aliphatic acids, normal alkanedioic acids are the most abundant. The detected aromatic acids include benzoic acids, phthalic acids, trimellitic acids, pyromellitic acids, and their derivatives. The synergistic oxidation and the released ·OH, CH₃COO·, and HOO· induced by AHPO/AAH play crucial roles in oxidatively degrading SAAS.

Key words: Spent auricularia auricular substrate, Mild oxidation, Aliphatic acids, Aromatic acids

摘要： Spent auricularia auricular substrate (SAAS) was oxidatively degraded with aqueous hydrogen peroxide (AHPO)/ acetic anhydride (AAH) to produce carboxylic acids (CAs) under mild conditions. The results show that up to 53.6% of the organic matter in SAAS was converted to the soluble species (SSs). In total 122 CAs were detected in the SSs by the analysis with a gas chromatograph/mass spectrometer, which can be classified into 29 group components, mainly being aliphatic acids and along with small amount of aromatic acids. Among the aliphatic acids, normal alkanedioic acids are the most abundant. The detected aromatic acids include benzoic acids, phthalic acids, trimellitic acids, pyromellitic acids, and their derivatives. The synergistic oxidation and the released ·OH, CH₃COO·, and HOO· induced by AHPO/AAH play crucial roles in oxidatively degrading SAAS.

关键词: Spent auricularia auricular substrate, Mild oxidation, Aliphatic acids, Aromatic acids

Xiaoli Xue, Zhimin Zong, Guanghui Liu, Xianyong Wei. Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion[J]. Chinese Journal of Chemical Engineering, 2020, 28(2): 548-555.

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Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion

Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion

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