Alternatives for biosurfactants and bacteriocins extraction from Lactococcus lactis cultures produced under different pH conditions

Letters in Applied Microbiology
Noelia RodríguezJosé Manuel Domínguez

Abstract

Study of the potential of Lactococcus lactis CECT-4434 as a biosurfactants and nisin (the only bacteriocin allowed to be used in the food industry) producer for industrial applications, exploiting the possibility of recovering separately both metabolites, taking into account that L. lactis is an interesting micro-organism with several applications in the food industry because it is recognized as GRAS. The results showed the ability of this strain to produce cell-bound biosurfactants, under controlled pH, and cell-bound biosurfactants and bacteriocins, when pH was not controlled. Three extraction procedures were designed to separately recover these substances. The strain L. lactis CECT-4434 showed to be a cell-bound biosurfactants and bacterocins producer when fermentations were carried out under uncontrolled pH. Both products can be recovered separately. Development of a convenient tool for the extraction of cell-bound biosurfactants and bacteriocins from the fermentation broth.

Citations

Mar 29, 2014·International Journal of Microbiology·Deepansh Sharma, Baljeet Singh Saharan
Aug 10, 2012·International Journal of Food Microbiology·G BlaiottaM Aponte
Jun 24, 2017·FEMS Microbiology Letters·Margarete Alice Fontes SaraivaCélia Alencar de Moraes
Apr 14, 2018·BioMed Research International·Tene Hippolyte MouafoRobert Ndjouenkeu
Dec 18, 2020·Frontiers in Bioengineering and Biotechnology·Piotr BiniarzMarcin Łukaszewicz
Sep 25, 2021·Applied Biochemistry and Biotechnology·Vasiliki KachrimanidouNikolaos Kopsahelis

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