Nisin’s stability
Interaction with Food Matrix Nisin’s stability is significantly influenced by food components: Proteins and Fats: In high-protein or high-fat foods (e.g., meat, dairy products), Nisin tends to bind to proteins (e.g., casein) or fat globules through hydrophobic interactions and electrostatic forces, reducing its free concentration and apparent activity. For example, in full-fat milk, the effective free Nisin concentration is 30–40% lower than in skim milk. To mitigate this, higher addition levels (10–20% increase) or compounding with surfactants (e.g., lecithin) are recommended to improve dispersion. Ions and Preservatives: Divalent cations (Ca²⁺, Mg²⁺) can stabilize Nisin’s structure by forming complexes with its carboxyl groups, enhancing heat resistance. Conversely, metal ions such as Fe³⁺ and Cu²⁺ may catalyze oxidative degradation. Compounding with EDTA (a chelating agent) can reduce such adverse effects. Additionally, Nisin exhibits synergistic stability with organic acids (e.g., lactic acid) and plant extracts (e.g., tea polyphenols), while avoiding combination with strong oxidants (e.g., hydrogen peroxide) that may oxidize its amino acid side chains.
Другие товары поставщика
|
|
Sulfamonomethoxine Sodium Soluble Powder 10% 500g |
Brand Name: Shengxue Qiu KangGeneric Name: Sulfamonomethoxine Sodium Soluble PowderActive Ingredient: Sulfamonomethoxine SodiumDescription: This pr... |
|
|
Nisin |
Nisin is a natural antimicrobial peptide that is widely used in the food industry as a preservative. It is a safe and effective alternative to synt... |
|
|
Natamycin Wh |
According to China's "National Standard for Food Safety Standard for the Use of Food Additives" (GB 2760-2024), natamycin is allowed to be added to... |
|
|
Nisin Supplier 500g |
Recognized by the global mainstream regulatory systemThe FDA (Food and Drug Administration of the United States) has classified Nisin as a GRAS (Ge... |
|
|
ε-Polylysine hydrochloride |
One of the key benefits of ε-Polylysine hydrochloride as a food preservative is its ability to inhibit the growth of a wide range of microo... |
Все товары поставщика
Похожие товары
