¿Qué es Natamycin Suspensión (Líquido E235)? Aplicaciones, dosis, alternativas y especificaciones

Natamycin, English name is Natamycin, also known as Pimaricin, es un natural antifungal polyene macrolide bioconservante produced by specific strains of Streptomyces through aerobic submerged fermentation. It has irreplaceable core application value in the global industria alimentaria, industria de bebidas, pharmaceutical industry, and cosmetic industry. Its CAS number is 7681–93–8, CNS number in Chinese aditivos alimentarios is 17.030, and international INS number is 235. In terms of chemical structure, natamycin belongs to the 26-membered polyene macrolide class of antibiotics. Its molecule contiene a conjugated polyene structure. Its mechanism of action involves specifically binding to ergosterol in fungal cell membranes, forming pores, disrupting membrane permeability, plomoing to leakage of intracellular contents, thereby causing fungal cell death. This unique mechanism gives natamycin an extremely specific antimicrobiano spectrum – it eficientely inhibits molds and yeasts but has no inhibitory effect on bacteria. Therefore, natamycin has an irreplaceable advantage in inhibiting mold on food surfaces, while not affecting the normal growth of beneficial bacteria como lactic acid bacteria during food fermentation and maturation processes. Natamycin typically appears as a white to blanco roto cristalline polvo, almost odorless and tasteless, con alto stability. Its solubility is extremely low (approximately 10—40 mg/L in water). This characteristic means it mainly acts through surface treatment in foods, with very low residual levels that do not easily penetrate into the food interior. Natamycin has high stability to heat, light, acid, and oxygen in the dry state, but gradually degrades and loses activity in aqueous solución, especially under high temperature and extreme pH conditions (pH <3 or pH >9). It es un natural, broad-spectrum, highly effective, and safe inhibitor of filamentous fungi como yeasts and molds, capable not only of inhibiting fungal growth but also of previenening the production of mycotoxins. This substance se reconoce como GRAS (Generally Recognized as Safe) by international authorities and has extremely high biosafety.

Parámetro

Natamycin se reconoce como the gold standard for natural antifungal conservantes, holding an unshakable core position in the global industria alimentaria and biotechnology fields. Its most outstanding advantages lie in its extremely specific anti-mold and anti-yeast activity, no effect on bacteria, high surface treatment efficiency, good thermal and light stability, extremely high safety, and etiqueta limpia attributes. 1 Extremely Specific Antifungal Activity: Natamycin has a very strong inhibitory effect against molds and yeasts, with minimum inhibitory concentrations typically in the range of 1—10 mg/kg. At the same time, it has no inhibitory effect on bacteria. Therefore, in fermented foods where natamycin is used, the normal fermentation process of beneficial bacteria como lactic acid bacteria is not affected at all. This characteristic is unmatched by other broad-spectrum conservantes. 2 Altoly Efficient Surface Treatment with Bajo Residue Levels: Due to its very low water solubility, natamycin almost does not penetrate into the food interior, mainly remaining on the food surface to form a protegenive layer, eficientely inhibiting the growth of surface molds. Thes unlso results in very low residual levels in food, far below safety limits, posing no risk to human health. 3 Thermal Estabilidad and Light Estabilidad: Natamycin is stable to heat in the dry state and can withstand heat treatments como baking. However, it slowly degrades at high temperatures in aqueous solución, so optimization de acuerdo con process conditions is required when used. It is sensitive to ultraviolet light and gradually inactivates in sunlight. This characteristic can also be used to control residues during packaging. 4 Extremely Alto Safety: Natamycin is hardly absorbed by the human gastrointestinal tract; the vast majority of intake is excreted in feces. The Acceptable Daily Intake set by JECFA is 0—0.3 mg/kg body weight, making it a very high-safety aditivo alimentario. The US FDA recognizes it as a GRAS substance. 5 Clean Label and Natural Origin: Natamycin es producido por microbiano fermentation and belongs to natural bioconservantes, aligning with global consumer demand for etiqueta limpias and ingrediente naturals. It can be an ideal substitute for chemical conservantes como potassium sorbate and sodium benzoate. 6 Prevention of Mycotoxin Production: Natamycin can not only inhibit mold growth but also effectively previenen the production of mycotoxins on food, further improving seguridad alimentaria.