Lipid profiles of green conversion from corn-ethanol co-product via Aspergillus niger

IF 9.7 1区 环境科学与生态学 Q1 AGRICULTURAL ENGINEERING Bioresource Technology Pub Date : 2025-03-10 DOI:10.1016/j.biortech.2025.132384
Weiwei Fan , Ayong Wang , Xiaoying Che , Siyu Xu , Ming Chen , Zhanyou Chi
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Abstract

High-value recycling of agro-industrial by-products is the focus of global sustainable development. A method of the recovery and utilization of corn-ethanol co-product to produce functional lipids via Aspergillus niger (A. niger) was proposed. The lipid changes in distillers dried grains with solubles (DDGS) were monitored via lipidomics. 648 lipids (five classes, 29 subclasses) were identified, including 75 fatty acyls, 203 glycerolipids, 184 glycerophospholipids, 169 sphingolipids, and 17 glucosylsphingoshine. Glycerolipids were the most abundant lipids, accounting for 31%. As fermentation proceeded, the concentration of lipids with 1–9 unsaturated bonds steadily increased. Oleic acid and linoleic acid were the main accumulated fatty acids. The pathways enrichment results showed glycerophospholipid metabolism, glycerolipids metabolism, sphingolipid metabolism, and biosynthesis of unsaturated fatty acids were the key metabolic pathways involved during DDGS fermentation. These results provided a comprehensive knowledge of the lipid profiles in fermented DDGS and proposed a new approach for high-value utilization of DDGS.

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来源期刊
Bioresource Technology
Bioresource Technology 工程技术-能源与燃料
CiteScore
20.80
自引率
19.30%
发文量
2013
审稿时长
12 days
期刊介绍: Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies. Topics include: • Biofuels: liquid and gaseous biofuels production, modeling and economics • Bioprocesses and bioproducts: biocatalysis and fermentations • Biomass and feedstocks utilization: bioconversion of agro-industrial residues • Environmental protection: biological waste treatment • Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.
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Editorial Board Editorial Board Lipid profiles of green conversion from corn-ethanol co-product via Aspergillus niger Perspectives on adhesion and irreversible fouling to delineate mitigation effects of autoinducer-2 mediated quorum quenching on biofouling Enhanced dissimilatory nitrate reduction to ammonium and electron transfer mechanisms in bidirectional electron transfer biofilm constructed by iron phthalocyanine
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