Cited by 152Polysaccharides Composition and ApplicationsProbiotics and Fermented FoodsProteins in Food Systems

Role of Exopolysaccharides Produced by Lactococcus lactis subsp. cremoris on the Viscosity of Fermented Milks

Ruas-Madiedo, Patricia, Tuinier, Remco, Kanning, Marja, Zoon, Pieternella·2002·International Dairy Journal

Abstract

Lactic acid bacteria strains that produce exopolysaccharide (EPS) are employed in the manufacture of fermented milk to improve its texture and viscosity. No clear correlation has been found between EPS concentration and the viscosity of the fermented milk. It is supposed that the molecular characteristics, i.e. radius of gyration and molar mass, of these biopolymers play a part. The subject of this study was to clarify whether the viscosifying properties of EPS in aqueous solution can be related to the viscosity of fermented milk products. Therefore, we aimed at relating the molecular characteristics of EPSs produced by several strains of Lactococcus lactis subsp. cremoris in milk at three incubation temperatures to the viscosity of the fermented products. For a given EPS concentration, a positive correlation between the EPS-viscosifying parameters (intrinsic viscosity, Kuhn segments length and thickening efficiency) and the Posthumus viscosity of fermented milks was found.

Integrity signals

Registry

Crossref · 10.1016/s0958-6946(01)00161-3

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31 of 31 references verified0 citation errors · 0 not checkable

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  • No effect of temperature on EPS production was reported when the Lact. lactis subsp. cremoris strain was used to ferment milk.

    “On the other hand, a study by Ruas-Madiedo et al. [70] reported no effect of temperature on the EPS production when the Lact. lactis subsp. cremoris strain was used to ferment milk.”
  • Membrane filtration techniques such as microfiltration, ultrafiltration and/or diafiltration have been used as a preceding step to EPS purification.

    “As a preceding step to EPS purification, membrane filtration techniques such as microfiltration, ultrafiltration and/or diafiltration have also been used [50,58,70,101].”
  • Proteins can be precipitated with trichloroacetic acid or a combination of trichloroacetic acid and proteases.

    “Then, proteins can be precipitated with trichloroacetic acid (TCA) [27,49,58,70] or a combination of TCA and proteases [97].”

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Authors
Ruas-Madiedo, P., Tuinier, R., Kanning, M., & Zoon, P.
Affiliations
Nederlands Instituut Voor Zuivel Oonderzoek (NL)
Corresponding author
Zoon, Pieternella
Venue
International Dairy Journal
Publisher
Elsevier BV
Published
2002
Volume
12
Issue
8
Pages
689-695
ISSN
0958-6946 (ISSN-L)
OpenAlex
W2104371637
Cited by
152
References
34
Citations by year
2026: 2 · 2025: 4 · 2024: 1 · 2023: 4 · 2022: 2 · 2021: 8 · 2020: 5 · 2019: 9 · 2018: 4 · 2017: 10 · 2016: 10 · 2015: 10 · 2014: 8 · 2013: 8 · 2012: 10
FWCI
12.44
Type
journal article
Language
en
Open access
closed
Locations
  • International Dairy Journal (publishedVersion)
  • TU/e Research Portal (submittedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Polysaccharides Composition and Applications
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Probiotics and Fermented Foods
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
Keywords
exopolysaccharides, Lactococcus lactis subsp. cremoris, fermented milk, viscosity, intrinsic viscosity, Kuhn segment length, radius of gyration, molecular weight, incubation temperature, lactic acid bacteria

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