Results 171 to 180 of about 3,848 (212)

Alkylating Potential of Potassium Sorbate

Journal of Agricultural and Food Chemistry, 2005
A kinetic study of the alkylating potential of potassium sorbate (S)-a food preservative used worldwide-in 7:3 water/dioxane medium was performed. The following conclusions were drawn: (i) Potassium sorbate shows alkylating activity on the nucleophile 4-(p-nitrobenzyl)pyridine (NBP), a trap for alkylating agents with nucleophilic characteristics ...
M Teresa, Pérez-Prior, José A, Manso, M Del Pilar, García-Santos, Emilio, Calle, Julio, Casado   +4 more
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Re-examination of potassium sorbate and sodium sorbate for possible genotoxic potential

Food and Chemical Toxicology, 1990
Potassium sorbate and sodium sorbate were investigated for possible genotoxic actions using the Salmonella/mammalian-microsome test, HGPRT and sister chromatid exchange (SCE) test with Chinese hamster ovary cells, the micronucleus test on bone marrow cells of mice and Chinese hamsters, and the chromosome aberration and SCE test on Chinese hamsters.
Muenzner, Ruth, Guigas, Claudia, Renner, Heinz W.   +2 more
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Toxicological evaluation of potassium sorbate added to cigarette tobacco

Food and Chemical Toxicology, 2008
Potassium sorbate (PS) may be incorporated in blended cigarette tobacco either as a mold growth inhibitor in processed tobacco sheet material, or as a preservative in flavor systems or paper adhesives. To evaluate the effect of PS addition, neat material pyrolysis studies, smoke chemistry and biological activity studies (bacterial mutagenicity ...
C L, Gaworski, R, Lemus-Olalde, E L, Carmines   +2 more
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Potassium sorbate inhibition of yeast alcohol dehydrogenase

Biochimica et Biophysica Acta, 1963
Abstract Potassium sorbate was found to inhibit yeast alcohol dehydrogenase (alcohol: NAD oxidoreductase, EC 1.1.1.1) maximally at the pH optimum of the enzyme; viz . pH 8.5. Potassium sorbate competed with NAD and ethanol for a site on the enzyme but in an irreversible manner. Sorbamide was found to be approx. 1000 times a better inhibitor of yeast
Winoto Martoadiprawito, John R. Whitaker
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Sodium benzoate and potassium sorbate preservatives in Iranian doogh

Food Additives & Contaminants: Part B, 2014
Sodium benzoate and potassium sorbate are two common preservatives used in Iran, yet use of these preservatives in doogh (Iranian dairy-based drink) is forbidden according to national standards. The aim of this study was to consider the presence of these preservatives in doogh by high-performance liquid chromatography with UV detection (HPLC-UV).
F, Zamani Mazdeh, F, Esmaeili Aftabdari, Z, Moradi-Khatoonabadi, M, Shaneshin, P, Torabi, M R, Shams Ardekani, M, Hajimahmoodi   +6 more
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Utilization of potassium sorbate by tobacco spoilage fungi

Mycological Research, 1990
Aspergillus, Eurotium and Penicillium species (total of 11 isolates) were examined for their ability to utilize potassium sorbate as a sole carbon source in liquid culture, under different pH and temperature conditions. Of these, only A. flavus, A. versicolor and P. chrysogenum were able to grow in the presence of 0·1 to 0·4% (w/v) sorbate at pH
E.S. Mutasa, N. Magan
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Synergistic activity of Stryphnodendron adstringens and potassium sorbate against foodborne bacteria

Archives of Microbiology, 2022
Stryphnodendron adstringens is a medicinal plant that has a broad spectrum of action, including antibacterial activity. The aim of the present study was to evaluate the effect of S. adstringens alone and in combination with potassium sorbate (PS) against foodborne bacteria.
Daliah Alves Coelho Trevisan, Andreia Farias Pereira Batista, Paula Aline Zanetti Campanerut-Sá, Daniela Cristina de Medeiros Araújo, Taísa Dalla Valle Rörig Ribeiro, João Carlos Palazzo de Mello, Jane Martha Graton Mikcha   +6 more
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Potassium sorbate reduces gastric colonization in patients receiving mechanical ventilation

Journal of Critical Care, 2005
Tube feeding might increase gastric burden of pathogenic bacteria and predispose patients to ventilator-associated pneumonia. We sought to determine whether a tube feeding formula acidified using potassium sorbate could reduce gastric burden of potentially pathogenic bacteria.Prospective, randomized, double-blind trial.RML Specialty Hospital, a ...
Aiman, Tulaimat, Aiman, Tulamait, Franco, Laghi, Kathleen, Mikrut, Roberta B, Carey, G R Scott, Budinger   +5 more
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Resistance of Sporolactobacillus to potassium sorbate and sodium nitrite

International Journal of Food Microbiology, 1987
Abstract The resistance of Sporolactobacillus to different concentrations of potassium sorbate and sodium nitrite in autoclaved glucose yeast-extract peptone broth, pH 6.0, was determined. The minimum inhibitory concentration of potassium sorbate that completely inhibited outgrowth of endospores and vegetative growth of Sporolactobacillus inulinus
S.J. Botha, W.H. Holzapfel
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Terahertz spectral detection of potassium sorbate in milk powder

SPIE Proceedings, 2017
The spectral characteristics of potassium sorbate in milk powder in the range of 0.2~2.0 THz have been measured with THz time-domain spectroscopy(THz-TDS). Its absorption and refraction spectra are obtained at room temperature in the nitrogen atmosphere. The results showed that potassium sorbate at 0.98 THz obvious characteristic absorption peak.
Pengpeng Li, Yuan Zhang, Hongyi Ge
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