Lipid stability in meat and meat products

Area of Science:

• Food Science
• Animal Nutrition
• Meat Science

Background:

• Lipid oxidation significantly impacts meat and meat product quality and acceptability.
• Oxidative damage originates in vivo due to reactive oxygen species imbalance and can be exacerbated post-slaughter during processing and storage.
• Increasing consumer demand for reduced artificial additives drives research into dietary strategies for meat stabilization.

Purpose of the Study:

• To investigate dietary strategies for enhancing meat stability and reducing lipid oxidation.
• To evaluate the efficacy of various supplements, including vitamin E, ascorbic acid, and carotenoids, in animal diets.
• To explore the impact of mineral content and post-slaughter treatments on meat quality.

Main Methods:

• Supplementation of animal diets with antioxidants such as vitamin E, ascorbic acid, and carotenoids.
• Modification of trace mineral content (iron, copper) in animal feeds.
• Assessment of lipid and myoglobin oxidation levels in meat.
• Evaluation of drip losses and overall meat stability.

Main Results:

• Dietary vitamin E supplementation effectively reduces lipid and myoglobin oxidation and can decrease drip losses.
• Vitamin C supplementation shows minimal beneficial effects on meat stability.
• Reducing dietary iron and copper improves meat stability.
• Post-slaughter carnosine addition may enhance lipid stability, particularly when combined with dietary vitamin E.

Conclusions:

• Dietary vitamin E is a promising strategy for improving meat quality by mitigating lipid oxidation.
• Further research is needed to determine the optimal levels of carotenoids for meat stability.
• Combined approaches, such as dietary vitamin E and post-slaughter carnosine, may offer synergistic benefits for meat preservation.