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Enhancing the shelf life of raw unprocessed milk by bacterial biosurfactants extracted from indigenous microbes present in cow’s milk

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Title Enhancing the shelf life of raw unprocessed milk by bacterial biosurfactants extracted from indigenous microbes present in cow’s milk
 
Creator Mohanachitra, E.
Menaka, R.
Sundaram, S. Karthik
 
Subject Antagonistic activity
Biosurfactant
Cow’s milk
Microbial surfactant
Shelf life of milk
Sustainability
 
Description 324-331
Biosurfactants are microbial amphiphilic compounds, which
can reduce surface tension between two immiscible liquids.
Indigenous microbes isolated from raw unprocessed cow’s milk
were characterized morphologically and biochemically. The
biosurfactant-producing ability of the isolates was determined by
hemolytic activity, oil displacement technique and their
emulsification activity which screened against oil. Biosurfactants
were produced and those were tested for their antibacterial
activities against various bacterial strains. Then the biosurfactants
were added to milk samples for analysing the shelf life of raw
unprocessed cow’s milk. The effect of biosurfactants on raw milk
is analyzed by visual and microbial enumeration. In this study, 8
indigenous microbes were isolated from raw milk. The best
isolates for biosurfactant production were identified as Bacillus
sp., and Lactobacillus sp., based on screening assays. The
biosurfactant extracted from these screened isolates exhibited
antimicrobial activity against infectious agents. Moreover, they
showed its effect on the potential enhancement of the shelf life of
raw milk. Isolated and screened microflora can be a good source
of biosurfactant and they are proven to be a beneficial means for
large and small-scale industries to supply good quality milk.
 
Date 2023-07-31T09:23:42Z
2023-07-31T09:23:42Z
2023-07
 
Type Article
 
Identifier 0976-0512 (Online); 0976-0504 (Print)
http://nopr.niscpr.res.in/handle/123456789/62368
https://doi.org/10.56042/ijnpr.v14i2.4218
 
Language en
 
Relation Int. cl. (2021.01)- A23C
 
Source IJNPR Vol.14(2) [June 2023]