Nisin Powder Supplier

Nisin plays a vital role in the food industry as a natural, safe, and effective preservative, particularly in extending shelf life and enhancing safety in dairy, meat, and processed foods. Its continued use, often in combination with other strategies, supports sustainable food preservation while meeting consumer preferences for cleaner ingredients. Limitations and Mitigation Narrow Spectrum: Ineffective against Gram-negative bacteria, molds, and yeasts. It is often combined with other preservatives (e.g., EDTA to disrupt Gram-negative outer membranes, or sorbates for fungi) to broaden coverage. pH Sensitivity: Less stable in alkaline foods (pH > 7). Its use is primarily restricted to acidic or neutral foods (pH 2–6), though microencapsulation can improve stability in varied matrices. Dosage Constraints: Overuse may select for resistant bacteria, so it is used at regulated levels (typically 100–500 IU/g, depending on the food).

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