Protecting meat color: The interplay of betanin red and myoglobin through antioxidation and coloration.
Food Chem
; 442: 138410, 2024 Jun 01.
Article
in En
| MEDLINE
| ID: mdl-38219566
ABSTRACT
Myoglobin (Mb) responsible for meat color is easily oxidized resulting in meat discoloration. Here, betanin red (BR), as a natural pigment and antioxidant, was chosen for enhancing redness and inhibiting oxidation. Multiple spectroscopies, isothermal titration calorimetry and molecular docking demonstrated that BR changed the microenvironment of heme group and amino acid residues of Mb, inhibited the oxidation of oxymyoglobin. The main interaction force was hydrogen bond and one variable binding site provided a continuous protective barrier to realize antioxidation. The combination of antioxidation with the inherent red color of BR offered dual color protection effect on processed beef with the addition amount of 0.2 % BR. BR treatment enhanced the redness by 25.59 â¼ 53.24 % and the sensory acceptance by 4.89 â¼ 14.24 %, and decreased the lipid oxidation by 0.58 â¼ 15.92 %. This study paves a theoretical basis for the application of BR and its structural analogues in meat color protection and other quality improvement.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Red Meat
/
Myoglobin
Limits:
Animals
Language:
En
Journal:
Food Chem
Year:
2024
Document type:
Article