Gao, Yang, Briers, Hannah K., Matharu, Avtar S. orcid.org/0000-0002-9488-565X et al. (1 more author) (2022) Exploration of Cucumber Waste as a Potential Biorefinery Feedstock. Processes. 2694. ISSN 2227-9717
Abstract
The exploration of cucumber waste as a potential biorefinery feedstock is reported. Initially, extractives (essential oils) were isolated from cucumber waste via vacuum microwave hydro-distillation (VMHD). The yield and quality of the extractive were compared with respect to traditional hydro-distillation (HD). The essential oils were obtained over a range of microwave power (500, 750, 1000 W) and vacuum pressures (100, 200, 300 mbar). The highest quality (0.49 wt %) was obtained at a microwave irradiation power of 500 W and a vacuum of 300 mbar. VMHD is much quicker and more energy-efficient than HD. Within the context of a zero-waste biorefinery, the extractive-free residues were the solid residues from two different extraction methods were compared and characterized by ATR-IR, 13C solid-state NMR spectroscopy, SEM, TGA, and CHN elemental analysis. The resultant residues are cellulosic-rich, and no significant changes were observed with VMHD and HD treatment. The results indicated that the utilization of these residues can provide an efficient, inexpensive, and environment-friendly platform for the production of cellulosic materials.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | Funding Information: This work is financially supported by the EPSRC (grant number EP/R51181X/1). Publisher Copyright: © 2022 by the authors. |
Keywords: | biorefinery,cellulosic materials,cucumber,essential oils,hydro-distillation,vacuum microwave hydro-distillation |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Chemistry (York) |
Depositing User: | Pure (York) |
Date Deposited: | 16 Jan 2023 10:20 |
Last Modified: | 21 Jan 2025 18:07 |
Published Version: | https://doi.org/10.3390/pr10122694 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.3390/pr10122694 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:195328 |