The LAB were grown in de Man
Rogosa Sharpe (MRS) medium (Oxoid, Milan, Italy) at their optimal
temperatures 25 C (KTU05-8 and KTU05-9), 30 C (KTU05-6) or
35 C (KTU05-10 and KTU05-7). 2% of LAB cells were inoculated
into a fresh medium and propagated for 18 h. The cells have been
harvested by centrifugation (6000 g, 10 min, 4 C). The culture
supernatants were filtered through a 0.2 mm sterile Millipore filter
to remove all cells and were divided into two parts. One part of
supernatants were used for the determination of antimicrobial
activities of LAB supernatant (total metabolites), whereas the other
part of supernatant samples were adjusted to pH 6.5 with 5 mol l1
NaOH to eliminate the organic acids effect and thus to evaluate
potential production of BLIS.
The LAB were grown in de ManRogosa Sharpe (MRS) medium (Oxoid, Milan, Italy) at their optimaltemperatures 25 C (KTU05-8 and KTU05-9), 30 C (KTU05-6) or35 C (KTU05-10 and KTU05-7). 2% of LAB cells were inoculatedinto a fresh medium and propagated for 18 h. The cells have beenharvested by centrifugation (6000 g, 10 min, 4 C). The culturesupernatants were filtered through a 0.2 mm sterile Millipore filterto remove all cells and were divided into two parts. One part ofsupernatants were used for the determination of antimicrobialactivities of LAB supernatant (total metabolites), whereas the otherpart of supernatant samples were adjusted to pH 6.5 with 5 mol l1NaOH to eliminate the organic acids effect and thus to evaluatepotential production of BLIS.
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