Improving soft cheese quality using growth stimulator for Bifidobacterium bifidum
El-Kboly, W. I.
Improving soft cheese quality using growth stimulator for Bifidobacterium bifidum [electronic resource]. تحسين جودة الجبن الطرى باستخدام عامل محفز النمو Bifidobacterium bifidum. - p.229-245.
The effectiveness of supplementation the bifidobacterial growth medium with different concentrations of sterilized metabolites of Propionibacterium thoenii P-127 was assessed. Supplementation of the growth medium of Bifidobacterium bifidum with sterilized metabolites of P thoenii P-127 produced better antimicrobial activity than treatment involving either metabolites or B. bifidum separately. Supplementation the B. bifidum growth medium with 1% (vol/vol) sterilized P. thoenii P-127 metabolites was found to be the most active against tested bacteria and yeasts and molds. The efficacy of the combination between B. bifidum and P thoenii P-127 or its metabolites as biopreservative as well as their influence on B. bifidum growth were evaluated in Domiati cheese during storage (8 weeks) at 7°C Addition of P. thoenii P-127 or 1% (vol/vol) of its metabolites stimulated the growth of B. bifidum and lactic starter and simu- ltaneously produced antimicrobial metabolites against coliform, psychrotrophic bacteria and yeasts and molds. Cheese made with lactic starter, P. thoenii P-127 and B. bifidum had the highest organoleptic scores when fresh and throughout storage followed by that made with lactic starter. B. bifidum and 1% P. thoenii P- 127 metabolites. Results suggest that the use of the combination of P. thoenii P- 127 or its metabolites together with cheese starter and B. bifidum are useful to improve the keeping quality and contribute to the taste to the obtained cheese.
Includes references.
Summary in Arabic.
Cheese--Quality.
Bifidobacterium bifidum.
soft cheeses.
Improving soft cheese quality using growth stimulator for Bifidobacterium bifidum [electronic resource]. تحسين جودة الجبن الطرى باستخدام عامل محفز النمو Bifidobacterium bifidum. - p.229-245.
The effectiveness of supplementation the bifidobacterial growth medium with different concentrations of sterilized metabolites of Propionibacterium thoenii P-127 was assessed. Supplementation of the growth medium of Bifidobacterium bifidum with sterilized metabolites of P thoenii P-127 produced better antimicrobial activity than treatment involving either metabolites or B. bifidum separately. Supplementation the B. bifidum growth medium with 1% (vol/vol) sterilized P. thoenii P-127 metabolites was found to be the most active against tested bacteria and yeasts and molds. The efficacy of the combination between B. bifidum and P thoenii P-127 or its metabolites as biopreservative as well as their influence on B. bifidum growth were evaluated in Domiati cheese during storage (8 weeks) at 7°C Addition of P. thoenii P-127 or 1% (vol/vol) of its metabolites stimulated the growth of B. bifidum and lactic starter and simu- ltaneously produced antimicrobial metabolites against coliform, psychrotrophic bacteria and yeasts and molds. Cheese made with lactic starter, P. thoenii P-127 and B. bifidum had the highest organoleptic scores when fresh and throughout storage followed by that made with lactic starter. B. bifidum and 1% P. thoenii P- 127 metabolites. Results suggest that the use of the combination of P. thoenii P- 127 or its metabolites together with cheese starter and B. bifidum are useful to improve the keeping quality and contribute to the taste to the obtained cheese.
Includes references.
Summary in Arabic.
Cheese--Quality.
Bifidobacterium bifidum.
soft cheeses.