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

Xiaoli Xue; Zhimin Zong; Guanghui Liu; Xianyong Wei

doi:10.1016/j.cjche.2019.07.014

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

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Mild oxidative degradation of spent auricularia auricular substrate and molecular composition of carboxylic acids in the resulting soluble portion
- Chinese Journal of Chemical Engineering Vol. 28, Issue 2, Pages: 548-555(2020)
- Affiliations：
  
  1. Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology,Xuzhou,China,221116
  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,China,132101
  3. State Key Laboratory of High-efficiency Coal Utilization and Green Chemical Engineering, Ningxia University,Yinchuan,China,750021
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.07.014
  CLC：
- Published：2020
- Accepted：
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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.
DOI：

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. DOI： 10.1016/j.cjche.2019.07.014.

摘要

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

COO·

and HOO· induced by AHPO/AAH play crucial roles in oxidatively degrading SAAS.

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