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Purification of sucrose in sugar beet molasses by utilizing ceramic nanofiltration and ultrafiltration membranes

Sjölin, Mikael LU ; Thuvander, Johan LU ; Wallberg, Ola LU orcid and Lipnizki, Frank LU orcid (2020) In Membranes 10(1).
Abstract

Molasses is a sugar mill by-product with low value that today is used primarily for animal feed. However, molasses contains large amounts of sucrose which, if purified, could be used for other purposes. In this study, purification by membrane filtration using ceramic tubular ultrafiltration (UF) and nanofiltration (NF) was examined. NF purifies sucrose by removing small compounds, whereas UF removes larger compounds. Based on our results, high filtration fluxes could be obtained, and it was possible to clean the membranes sufficiently from fouling compounds. Sucrose was separated from other compounds, but the separation efficiency was generally higher with diluted molasses compared with concentrated molasses. This could be explained by... (More)

Molasses is a sugar mill by-product with low value that today is used primarily for animal feed. However, molasses contains large amounts of sucrose which, if purified, could be used for other purposes. In this study, purification by membrane filtration using ceramic tubular ultrafiltration (UF) and nanofiltration (NF) was examined. NF purifies sucrose by removing small compounds, whereas UF removes larger compounds. Based on our results, high filtration fluxes could be obtained, and it was possible to clean the membranes sufficiently from fouling compounds. Sucrose was separated from other compounds, but the separation efficiency was generally higher with diluted molasses compared with concentrated molasses. This could be explained by more severe fouling when filtering dilute molasses or potentially due to aggregate formations in the molasses as our analysis showed. Overall, this study shows the potential of ceramic UF and NF membranes for sucrose purification from molasses.

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Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Ceramic membrane, Membrane fouling and cleaning, Molasses, Nanofiltration, Purification, Sucrose, Sugar beet, Ultrafiltration
in
Membranes
volume
10
issue
1
article number
5
publisher
MDPI AG
external identifiers
  • pmid:31892103
  • scopus:85077499113
ISSN
2077-0375
DOI
10.3390/membranes10010005
project
Molasses Purification and Valorisation
Farm2Furan: Surplus agricultural feedstocks to furanics
language
English
LU publication?
yes
id
9e74204b-e024-4815-bd7d-932e8b3c7057
date added to LUP
2020-01-19 20:25:41
date last changed
2024-06-13 10:03:30
@article{9e74204b-e024-4815-bd7d-932e8b3c7057,
  abstract     = {{<p>Molasses is a sugar mill by-product with low value that today is used primarily for animal feed. However, molasses contains large amounts of sucrose which, if purified, could be used for other purposes. In this study, purification by membrane filtration using ceramic tubular ultrafiltration (UF) and nanofiltration (NF) was examined. NF purifies sucrose by removing small compounds, whereas UF removes larger compounds. Based on our results, high filtration fluxes could be obtained, and it was possible to clean the membranes sufficiently from fouling compounds. Sucrose was separated from other compounds, but the separation efficiency was generally higher with diluted molasses compared with concentrated molasses. This could be explained by more severe fouling when filtering dilute molasses or potentially due to aggregate formations in the molasses as our analysis showed. Overall, this study shows the potential of ceramic UF and NF membranes for sucrose purification from molasses.</p>}},
  author       = {{Sjölin, Mikael and Thuvander, Johan and Wallberg, Ola and Lipnizki, Frank}},
  issn         = {{2077-0375}},
  keywords     = {{Ceramic membrane; Membrane fouling and cleaning; Molasses; Nanofiltration; Purification; Sucrose; Sugar beet; Ultrafiltration}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{1}},
  publisher    = {{MDPI AG}},
  series       = {{Membranes}},
  title        = {{Purification of sucrose in sugar beet molasses by utilizing ceramic nanofiltration and ultrafiltration membranes}},
  url          = {{http://dx.doi.org/10.3390/membranes10010005}},
  doi          = {{10.3390/membranes10010005}},
  volume       = {{10}},
  year         = {{2020}},
}