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result sql = Risk assessment of the use of sub-optimal levels of weak-acid preservatives in the control of mould growth on bakery products.
Risk assessment of the use of sub-optimal levels of weak-acid preservatives in the control of mould growth on bakery products.
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char = r;code = 114
char = /;code = 47
char = >;code = 62
result sql = The hurdle technology approach was used to prevent fungal growth of common contaminants of bakery products including isolates belonging to the genera Eurotium, Aspergillus and Penicillium. Several levels (0.003%, 0.03% and 0.3%) of calcium propionate, potassium sorbate and sodium benzoate were assayed on a model agar system in a full-factorial experimental design in which the other factors assayed were pH (4.5, 6 and 7.5) and a(w) (0.80, 085, 0.90 and 0.95). Potassium sorbate was found to be the more suitable preservative to be used in combination with the common levels of pH and a(w) in Spanish bakery products. Sub-optimal concentrations (0.003% and sometimes 0.03%) led to an enhancement of fungal growth. None of the preservatives had a significant inhibitory effect at neutral pH.

Publication: Int. J. Food Microbiol. 2002 Dec 15 ;79(3)::203-11.
Publication Date: 2002 Dec 15
Study Author(s): Marín, S;Guynot, M E;Neira, P;Bernadó, M;Sanchis, V;Ramos, A J;
Institution: Food Technology Department, Lleida University, CeRTA-UTPV, Spain.
Shortcut link to this study:
The hurdle technology approach was used to prevent fungal growth of common contaminants of bakery products including isolates belonging to the genera Eurotium, Aspergillus and Penicillium. Several levels (0.003%, 0.03% and 0.3%) of calcium propionate, potassium sorbate and sodium benzoate were assayed on a model agar system in a full-factorial experimental design in which the other factors assayed were pH (4.5, 6 and 7.5) and a(w) (0.80, 085, 0.90 and 0.95). Potassium sorbate was found to be the more suitable preservative to be used in combination with the common levels of pH and a(w) in Spanish bakery products. Sub-optimal concentrations (0.003% and sometimes 0.03%) led to an enhancement of fungal growth. None of the preservatives had a significant inhibitory effect at neutral pH.
PMID: 12371655

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