Inhibitors yeast

Sorbates. The sodium and potassium salts of sorbic acid [110-44-1], ate used as mold and yeast inhibitors in dairy products, chemically... 

Sorbic acid, a yeast inhibitor, is used sometimes in conjunction with membrane filtration as an extra safety factor. However, excessive amounts of sorbic acid may affect the wine s aroma, and most North Coast winemakers avoid its use. 

Tron, T., Crimi, M., Colson, A. M., and Degli Esposti, M., 1991, Structure/function relationships in mitochondrial cytochrome b revealed by the kinetic and circular dichroic properties of two yeast inhibitor-resistant mutants, Eur. J. Biochem. 199 753n760. 

Derivative benzoates and parabenzoates have been used primarily in fruit juices, chocolate syrup, pie fillings, pickled vegetables, relishes, horseradish, and cheese (Barbosa-Canovas et al., 2003). Other foodstuffs where sodium benzoate is used include soft drinks, baked goods, and lollipops (Poulter, 2007). Benzaldehyde and benzoic alcohol are better known to be yeast inhibitors. Benzoic acid has been found to release fewer protons than sulphite, nitrite, or acetic acid and it may be speculated that benzoic acid is not a classic weak-acid preservative. However, due to a lower pKa value, benzoic acid releases three to four times more protons than sorbic acid. This is a sizable concentration of protons although not as much as other weak-acid preservatives (Stratford and Anslow, 1998). Inhibition of growth is strongly pH-dependent and most effective under acidic conditions. Under these conditions the protonated form of the acid is predominantly found (Visti, Viljakainen, and Laakso, 2003). Another unexpected discovery was that benzoic acid appears to be a pro-oxidant. This was unexpected as it is a well-known fact 2-hydroxybenzoic acid (or salicylic acid) acts as a scavenger of free radicals in vivo (Piper, 1999). 

In certain cases, the FDA has applied a negligible risk concept for food additives. This is demonstrated in the case of dimethyl dicarbamate, a yeast inhibitor for use in beverages (FDA 2000). The additive evenmaUy decomposes to methanol and carbon dioxide, but in the presence of ammonium ions (not uncommon in certain beverages) a carcinogenic chemical may also be formed in small amounts. The FDA used formal quantitative risk assessment procedures to estimate the upper-bound limit of carcinogenic risk to humans posed by urethane generated by decomposition of the additive. It was concluded that the potential risk was sufficiently low that the additive would be safe for the requested use, and the FDA s final rule approved its use (56 FR 40502 1988). 

Potassium sorbate is used as a yeast inhibitor for the stabilization of table wines containing residual sugar. When conditions permit the growth of lactic acid bacteria, wines treated with sorbic acid can develop an odor resembling crushed geranium leaves (Burkhardt, 1973 Radler, 1976 Wurdig et al., 1975). This result due to bacterial reduction... 

Delvocid. [Int L Bio-Syndietics] Nata-mycin food grade mold and yeast inhibitor. 

USE As mold and yeast inhibitor, like sorbic acid, esp... 

AI3-26043 CCRIS 1894 E 202 BNECS 246-376-1 2,4-Hexadienoic acid, (E,E)-, potassium salt 2,4-Hexadienoic acid, potassium salt, (E,E)- 2,4-Hexadienoic acid, potassium salt, (2E,4E)- Potassium (E,E)-hexa-2,4-dienoate Potassium 2,4-hexadienoate, (E,E)- Potassium (E,E)-2,4-hexadienoate Potassium sorbate Potassium sorbate (E) Potassium (E.E)-sorbate Sorbic acid, potassium salt, (E,E)- Sorbic acid, potassium salt Sorbistat potassium. Used as a mold and yeast inhibitor, Crystals mp = 270° (dec) dM = 1.363 soluble in H2O (58 g/100 ml), less soluble in organic solvents. Chisso Corp. Gist-Brocades Inti. Hoechst Celanese Pfizer Inc. Protameen. 

It is abundantly used as a mold and yeast inhibitor in pharmaceutical preparations. 

Products and Uses Found in wine as a fungicide and yeast inhibitor. 

Gonzalez, F. W., and Abrahamson, S. (1968), Acti-dione, a yeast inhibitor facilitating egg coimts. Drosophila Information Service 43y 200. 

Chem. Descrip. 1,3,5-Tris (2-hydroxyethyl)-hexahydro-s-triazine and 1,3,5-triethylenehexahydro-1,3,5-triazine in water Uses Biocide, bactericide, fungicide, yeast inhibitor for aq. systems, adhesives, polymer emulsions, fountain sol ns., paints Features Provides complete microbiological protection in wet state stable to light and pH 4-9 nonflamm. nonexplosive Properties Yel. clear liq. misc. with water immisc. with oil pH 7 (0.1% aq.)... 

CAS 2634-33-5 EINECS/ELINCS 220-120-9 Uses Preseivative, bactericide, fungicide, yeast inhibitor for aq. coatings, polymer disps., filler suspensions, slurries, sol ns. and disps. of adhesives and thickeners, concrete additives, other aq. formulations Features Broad spectrum Preventol Cl 8-100 [Bayer AG Sea-Land]... 

CAS 59-50-7 EINECS/ELINCS 200-431-6 Uses Preservative, bactericide, fungicide, yeast inhibitor for concrete additives, metalworking fluids, textile auxs., thickener sol ns., adhesives (incl. protein-based formulations), glues, knifing fillers, aq. coatings, etc. Features Broad spectrum activity esp. effective against putrefactive bacteria rec. for prods, which are difficult to preserve Preventol CMK Pellets [Bayer AG]... 

Uses Formaldehyde releaser, preservative, bactericide, fungicide, yeast inhibitor for metaiworking fluids, bitumen emuisions, iiq. adhesives, aq. coatings, other water-based soi ns. or disps. 

Preventol P109 Preventol P109-N Preventol TP OC 3083 Preventol TP OC 3084 Preventol TP SP 80033 yeast inNbitor, iatex emuisions Biochek 410 Dowicil QK-20 yeast inNbitor, oii emuisions Preventol D 7 Preventol TP OC 3083 Preventol TP OC 3084 yeast inNbitor, paints Biochek 410 Nipacide 80 yeast inhibitor, pigment slurries Biochek 410 Preventol P 91 SF Preventol P109 Preventol P 109-N Preventol P 301 Preventol TP OC 3083 Preventol TP OC 3084 ... 

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