The Influence of Different Ultrafiltration Set-ups on Mineral Partitioning Between Skim Milk Streams
Jiang, Y ; Rauh, V ; Lillevang, S ; Skibsted, L ; Lipnizki, F LU
; Barone, G
and Ahrne, L
(2024)
Nordic Filtration Symposium 2024
- Abstract
- Ultrafiltration (UF), a widely utilised membrane-based process used in the dairy industry, is crucial for standardising milk constituents, especially proteins. However, depending on the filtration set-up, the extent of the physicochemical properties of the concentrate can be modulated. This study compares the impacts of two UF configurations, cross-flow (CF-UF) and dead-end (DE-UF), on the mineral partitioning in skim milk, using a 50 kDa molecular weight cut-off (MWCO) membrane across varying temperatures (5°C to 55°C). The research elucidates the operational dynamics, physicochemical outcomes, and mineral distribution associated with each set-up. CF-UF demonstrated superior efficiency in protein retention, achieving values between 6.02%... (More)
- Ultrafiltration (UF), a widely utilised membrane-based process used in the dairy industry, is crucial for standardising milk constituents, especially proteins. However, depending on the filtration set-up, the extent of the physicochemical properties of the concentrate can be modulated. This study compares the impacts of two UF configurations, cross-flow (CF-UF) and dead-end (DE-UF), on the mineral partitioning in skim milk, using a 50 kDa molecular weight cut-off (MWCO) membrane across varying temperatures (5°C to 55°C). The research elucidates the operational dynamics, physicochemical outcomes, and mineral distribution associated with each set-up. CF-UF demonstrated superior efficiency in protein retention, achieving values between 6.02% and 10.9%, compared to 3.44% to 4.70% for DE-UF. Mineral retention, particularly calcium, was significantly higher in CF-UF retentates, ranging from 57.8 mM to 112 mM, compared to 29.8 mM to 41.5 mM in DE-UF. However, DE-UF exhibited a unique capability to fine-tune calcium retention and permeate pH, rendering it suitable for specific dairy functionalities. Ionic calcium concentrations in permeates fluctuated less with CF-UF, offering greater stability and control over mineral speciation. The permeate flux in CF-UF was consistently higher due to reduced fouling and better temperature management, which also influenced the overall solubility and partitioning of calcium and phosphorus. The findings underscore the importance of selecting appropriate UF configurations and operating temperatures to achieve desired mineral profiles in dairy streams. By modulanting variables such as filtration temperature and set-up mode, processors can tailor milk compositions to optimize functionalities like heat stability and nutrient content, with potential applications in cheese production and calcium-enriched formulations. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/53cd582b-0f83-4ac4-9720-4e39b4841821
- author
- Jiang, Y
; Rauh, V
; Lillevang, S
; Skibsted, L
; Lipnizki, F
LU
; Barone, G
and Ahrne, L
- organization
- publishing date
- 2024-12-02
- type
- Contribution to conference
- publication status
- published
- subject
- keywords
- Membrane processes, Dairy industry, Ultrafiltration
- pages
- 1 pages
- conference name
- Nordic Filtration Symposium 2024
- conference location
- Copenhagen, Denmark
- conference dates
- 2024-12-02 - 2024-12-04
- language
- English
- LU publication?
- yes
- id
- 53cd582b-0f83-4ac4-9720-4e39b4841821
- alternative location
- https://discongress.eventsair.com/nofs-2024/abstracts
- date added to LUP
- 2025-12-30 21:35:36
- date last changed
- 2026-01-16 13:46:22
@misc{53cd582b-0f83-4ac4-9720-4e39b4841821,
abstract = {{Ultrafiltration (UF), a widely utilised membrane-based process used in the dairy industry, is crucial for standardising milk constituents, especially proteins. However, depending on the filtration set-up, the extent of the physicochemical properties of the concentrate can be modulated. This study compares the impacts of two UF configurations, cross-flow (CF-UF) and dead-end (DE-UF), on the mineral partitioning in skim milk, using a 50 kDa molecular weight cut-off (MWCO) membrane across varying temperatures (5°C to 55°C). The research elucidates the operational dynamics, physicochemical outcomes, and mineral distribution associated with each set-up. CF-UF demonstrated superior efficiency in protein retention, achieving values between 6.02% and 10.9%, compared to 3.44% to 4.70% for DE-UF. Mineral retention, particularly calcium, was significantly higher in CF-UF retentates, ranging from 57.8 mM to 112 mM, compared to 29.8 mM to 41.5 mM in DE-UF. However, DE-UF exhibited a unique capability to fine-tune calcium retention and permeate pH, rendering it suitable for specific dairy functionalities. Ionic calcium concentrations in permeates fluctuated less with CF-UF, offering greater stability and control over mineral speciation. The permeate flux in CF-UF was consistently higher due to reduced fouling and better temperature management, which also influenced the overall solubility and partitioning of calcium and phosphorus. The findings underscore the importance of selecting appropriate UF configurations and operating temperatures to achieve desired mineral profiles in dairy streams. By modulanting variables such as filtration temperature and set-up mode, processors can tailor milk compositions to optimize functionalities like heat stability and nutrient content, with potential applications in cheese production and calcium-enriched formulations.}},
author = {{Jiang, Y and Rauh, V and Lillevang, S and Skibsted, L and Lipnizki, F and Barone, G and Ahrne, L}},
keywords = {{Membrane processes; Dairy industry; Ultrafiltration}},
language = {{eng}},
month = {{12}},
title = {{The Influence of Different Ultrafiltration Set-ups on Mineral Partitioning Between Skim Milk Streams}},
url = {{https://discongress.eventsair.com/nofs-2024/abstracts}},
year = {{2024}},
}