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
|
|
Chlortetracycline Premix |
Chlortetracycline Premix is a special feed additive that combines the advantages of chlortetracycline, an antibiotic, with premixes designed to pro... |
|
|
Nisin Powder Supplier |
Using nisin as a biopreservative in food requires careful attention to its properties, application conditions, and regulatory guidelines to maximiz... |
|
|
Natamycin 7681-93-8 |
Precautions for use of natamycinScope and limit of use: The scope and limit of use of natamycin are strictly regulated. For example, in China, when... |
|
|
Nisin 500g |
Nisin is permitted for use in infant formula foods (such as in baby cheese approved by the European Union, with a limit of 0.2g /kg), and its proba... |
|
|
Sulfachloropyrazine Sodium Soluble Powder |
Trade Name: Shengxue Qiuling Common Name: Sulfachloropyrazine Sodium Soluble Powder Main Ingredients: Sulfachloropyrazine Sodium Description: This ... |
Все товары поставщика
Похожие товары
