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Optimizing the composition of the medium for the viable cells of Bifidobacterium animalis subsp. lactis JNU306 using response surface methodology
Ist Teil von
한국축산학회지, 2021, 63(3), , pp.603-613
Ort / Verlag
Korean Society of Animal Sciences and Technology
Erscheinungsjahr
2021
Link zum Volltext
Quelle
EZB-FREE-00999 freely available EZB journals
Beschreibungen/Notizen
This research improved the growth potential of
Bifidobacterium
animalis
subsp lactis strain JNU306, a commercial medium that is
appropriate for large-scale production, in yeast extract, soy peptone, glucose,
L-cysteine, and ferrous sulfate. Response surface methodology (RSM) was used to
optimize the components of this medium, using a central composite design and
subsequent analyses. A second-order polynomial regression model, which was
fitted to the data at first, significantly lacked fitness. Thus, through further
analyses, the model with linear and quadratic terms plus two-way, three-way, and
four-way interactions was selected as the final model. Through this model, the
optimized medium composition was found as 2.8791% yeast extract, 2.8030% peptone
soy, 0.6196% glucose, 0.2823% L-cysteine, and 0.0055% ferrous sulfate, w/v. This
optimized medium ensured that the maximum biomass was no lower than the biomass
from the commonly used blood-liver (BL) medium. The application of RSM improved
the biomass production of this strain in a more cost-effective way by creating
an optimum medium. This result shows that
B. animalis
subsp
lactis
JNU306 may be used as a commercial starter culture
in manufacturing probiotics, including dairy products.