TY - JOUR
T1 - Metagenomic insights into improving mechanisms of Fe0 nanoparticles on volatile fatty acids production from potato peel waste anaerobic fermentation
AU - Yang, Guang
AU - Xu, Chonglin
AU - Varjani, Sunita
AU - Zhou, Yaoyu
AU - Wong, Jonathan W C
AU - Duan, Guilan
N1 - This study was supported by the Key Research and Development Program of Shandong Province, China (No 2021CXGC010803), and the National Key Research and Development Program of China (grant no. 2020YFC1808701).
Publisher Copyright:
© 2022 Elsevier Ltd. All rights reserved.
PY - 2022/10
Y1 - 2022/10
N2 - The management of potato peel waste (PPW) has been a challenge faced by the potato industry. This investigation assessed the feasibility of PPW for volatile fatty acids (VFAs) production via anaerobic fermentation, and investigated the impact of Fe0 nanoparticles (Fe0 NPs) supplementation on the VFAs production. It is found that PPW is a potential feedstock for producing VFAs, achieving a yield of 480.4 mg COD/g-vS Meanwhile, the supplementation of Fe0 NPs significantly promoted the VFAs productivity and quality. The higher enrichment of VFAs-producing bacteria, including Clostridium, Proteiniphilum, Fonticella and Pygmaiobacter, contributed to the promotion of the VFAs yield. Furthermore, metagenomic analysis revealed that the encoding genes responsible for carbohydrate metabolism (especially starch), membrane transport, glycolysis and the formation of acetic and butyric acids were remarkably up-regulated, which could be the essential reason for the enhanced metabolic activity and VFAs productivity. This work provides a promising strategy for recycling PPW.
AB - The management of potato peel waste (PPW) has been a challenge faced by the potato industry. This investigation assessed the feasibility of PPW for volatile fatty acids (VFAs) production via anaerobic fermentation, and investigated the impact of Fe0 nanoparticles (Fe0 NPs) supplementation on the VFAs production. It is found that PPW is a potential feedstock for producing VFAs, achieving a yield of 480.4 mg COD/g-vS Meanwhile, the supplementation of Fe0 NPs significantly promoted the VFAs productivity and quality. The higher enrichment of VFAs-producing bacteria, including Clostridium, Proteiniphilum, Fonticella and Pygmaiobacter, contributed to the promotion of the VFAs yield. Furthermore, metagenomic analysis revealed that the encoding genes responsible for carbohydrate metabolism (especially starch), membrane transport, glycolysis and the formation of acetic and butyric acids were remarkably up-regulated, which could be the essential reason for the enhanced metabolic activity and VFAs productivity. This work provides a promising strategy for recycling PPW.
KW - Anaerobic fermentation
KW - Metagenomic analysis
KW - Microbial community structure
KW - Potato peel waste
KW - Volatile fatty acids
UR - http://www.scopus.com/inward/record.url?scp=85135501516&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2022.127703
DO - 10.1016/j.biortech.2022.127703
M3 - Journal article
C2 - 35907599
AN - SCOPUS:85135501516
SN - 0960-8524
VL - 361
JO - Bioresource Technology
JF - Bioresource Technology
M1 - 127703
ER -
