Screening for texturing Leuconostoc and genomics behind polysaccharide production.
Leuconostoc
hetero-polysaccharides
homo-polysaccharides
screening
texture
wzy dependent pathway
Journal
FEMS microbiology letters
ISSN: 1574-6968
Titre abrégé: FEMS Microbiol Lett
Pays: England
ID NLM: 7705721
Informations de publication
Date de publication:
05 11 2020
05 11 2020
Historique:
received:
05
08
2020
accepted:
23
10
2020
pubmed:
28
10
2020
medline:
22
7
2021
entrez:
27
10
2020
Statut:
ppublish
Résumé
Synthesis of polysaccharides by Leuconostoc can result in improved texture of fermented products. A total of 249 Leuconostoc strains were screened for homo-polysaccharide production and for texturing capabilities in milk. A total of six Ln. mesenteroides strains with superior texturing properties had the genetic blueprint for both homo- (HoPS) and hetero-polysaccharide (HePS) synthesis. Only one strain produced texture in milk without added sucrose, suggesting HePS synthesis via the Wzy dependent pathway. In milk acidification experiments with added sucrose, all six strains depleted the sucrose and released fructose. Thus, they can be used for both texture and possibly also for sweetness enhancement.
Identifiants
pubmed: 33107908
pii: 5941482
doi: 10.1093/femsle/fnaa179
pmc: PMC7644082
pii:
doi:
Substances chimiques
Polysaccharides
0
Sucrose
57-50-1
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© The Author(s) 2020. Published by Oxford University Press on behalf of FEMS.
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