| Title: | The influence of polyphenolic compounds on anaerobic digestion of pepper processing waste during biogas and biomethane production |
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| Authors: | ID Zupančič, Gregor Drago (Author)
ID Lončar, Anamarija (Author)
ID Ranilović, Jasmina (Author)
ID Šubarić, Drago (Author)
ID Panjicko, Mario (Author) |
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| Files: |  processes-12-00913.pdf (968,71 KB)
MD5: 9D86E4138252980F333D446DC0AA7C4B
 https://www.mdpi.com/2227-9717/12/5/913
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | Pepper processing waste has the potential to be used as a substrate in the process of anaerobic digestion, but because of its high polyphenol content, certain limitations are expected. During the determination of the biodegradability of pepper samples, a biogas potential of 687 L/kg DM was observed, as well as a biomethane potential of 401 L/kg DM. While both the testing of biodegradability and the process in the pilot scale progressed, it was observed that total polyphenol content in both cases decreased. Also, as far as individual polyphenols during the process in the pilot scale are concerned, it can be observed that at the end of the process no procyanidin A2, epicatechin, myricetin, and quercetin were detected. The observed concentration of the ferulic acid on the last
day of the process was 0.09 μg/g. Finally, it can be concluded that the presence of polyphenols did
not significantly affect the biogas potential of pepper waste. Due to its relatively stable biogas production,
as far as biogas production on the pilot scale is concerned, it can be concluded that pepper
processing waste has the potential to be used as a substrate for biogas production. |
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| Keywords: | anaerobic digestion, polyphenols, ferulic acid, procyanidins, epicatechin, myricetin, quercetin |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.01.2024 |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-13 |
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| Numbering: | Vol. 12, issue 5, [article no.] 913 |
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| PID: | 20.500.12556/RUNG-9003  |
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| COBISS.SI-ID: | 194403587 |
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| UDC: | 66 |
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| ISSN on article: | 2227-9717 |
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| DOI: | 10.3390/pr12050913 |
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| NUK URN: | URN:SI:UNG:REP:CCUE7YXC |
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| Publication date in RUNG: | 06.05.2024 |
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| Views: | 191 |
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| Downloads: | 2 |
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