Potato peel waste for fermentative biohydrogen production using different pretreated culture

Cao, J., Xu, C., Zhou, R., Duan, G., Lin, A., Yang, X., You, S. , Zhou, Y. and Yang, G. (2022) Potato peel waste for fermentative biohydrogen production using different pretreated culture. Bioresource Technology, 362, 127866. (doi: 10.1016/j.biortech.2022.127866)

Abstract

How to manage potato peel waste sustainably has been an issue faced by the potato industry. This work explored the feasibility of potato peel waste for biohydrogen production via dark fermentation, and investigated the effects of various inoculum enrichment methods (acid, aeration, heat-shock and base) on the process efficiency. It was observed that the hydrogen production showed a great variation when using various inoculum enrichment methods, and the aeration enriched inoculum obtained the maximum hydrogen yield of 71.0 mL/g-VSadded and VS removal of 28.9%. Different enriched cultures also exhibited huge variations in the bacterial community structure and metabolic pathway. The highest abundance of Clostridium sensu stricto fundamentally contributed to the highest process efficiency for the fermenter inoculated with aeration treated culture. This work puts forward a promising strategy for recycling potato peel waste, and fills a gap in the optimal inoculum preparation method for biohydrogen fermentation of potato peel waste.

• Item Type: Articles
• Additional Information: This study was supported by the Key Research and Development Program of Shandong Province, China (No. 2021CXGC010803), the National Key Research and Development Program of China (No. 2020YFC1808701), and the China Postdoctoral Science Foundation (No. 2022M713307).
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: You, Dr Siming

Creator Roles

You, S.: Writing – review and editing

• Authors: Cao, J., Xu, C., Zhou, R., Duan, G., Lin, A., Yang, X., You, S., Zhou, Y., and Yang, G.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Bioresource Technology
• Publisher: Elsevier
• ISSN: 0960-8524
• ISSN (Online): 1873-2976
• Published Online: 29 August 2022
• Copyright Holders: Copyright © 2022 Elsevier Ltd.
• First Published: First published in Bioresource Technology 362: 127866
• Publisher Policy: Reproduced in accordance with the publisher copyright policy