In addition to MAP, the rate and extent of oxidative deterioration can be reduced by various means, including the use of antioxidants.
The incorporation of antioxidants protects lipids from oxidation and also stabilises oxymyoglobin.
Concern about safety and renewed interest in natural products resulted in increased research on natural antioxidants.
The protective effect of natural antioxidants may be reached by adding them directly to meat or meat products during processing.
Ascorbic acid possesses antioxidant properties, although it can act as an antioxidant or as a prooxidant depending on the concentration, the presence of metal ions and the tocopherol content.
A large number of authors found rosemary to have a very favourable effect on slowing down the process of oxidation of fat in various meats, such as sausages.
Rosemary contains a large number of compounds, including carnosic acid, carnosol and rosmarinic acid, and provides a major source of natural antioxidants used commercially in foods
Carnosine is a β-alanyl-histidine dipeptide found in skeletal muscle. Pork, beef, and chicken muscle contain approximately 4.0, 8.0, and 15.0 mM carnosine, respectively.
Carnosine has been shown to inhibit lipid oxidation catalysed by most oxidants.
The antioxidant mechanism of carnosine has been suggested to be due to a combination of metal chelation and free radical scavenging.
However, Zhou, Dickinson, Yang, and Decker (1998) reported that the antioxidant effect of carnosine was due to the contamination with hydrazine of its commercial preparations.
In addition to MAP, the rate and extent of oxidative deterioration can be reduced by various means, including the use of antioxidants. The incorporation of antioxidants protects lipids from oxidation and also stabilises oxymyoglobin. Concern about safety and renewed interest in natural products resulted in increased research on natural antioxidants. The protective effect of natural antioxidants may be reached by adding them directly to meat or meat products during processing.Ascorbic acid possesses antioxidant properties, although it can act as an antioxidant or as a prooxidant depending on the concentration, the presence of metal ions and the tocopherol content.A large number of authors found rosemary to have a very favourable effect on slowing down the process of oxidation of fat in various meats, such as sausages. Rosemary contains a large number of compounds, including carnosic acid, carnosol and rosmarinic acid, and provides a major source of natural antioxidants used commercially in foodsCarnosine is a β-alanyl-histidine dipeptide found in skeletal muscle. Pork, beef, and chicken muscle contain approximately 4.0, 8.0, and 15.0 mM carnosine, respectively. Carnosine has been shown to inhibit lipid oxidation catalysed by most oxidants. The antioxidant mechanism of carnosine has been suggested to be due to a combination of metal chelation and free radical scavenging. However, Zhou, Dickinson, Yang, and Decker (1998) reported that the antioxidant effect of carnosine was due to the contamination with hydrazine of its commercial preparations.
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