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Review
. 2021 Feb 5;11(2):401.
doi: 10.3390/ani11020401.

Dietary Polyphenol Supplementation in Food Producing Animals: Effects on the Quality of Derived Products

Valentina Serra  1 , Giancarlo Salvatori  2 , Grazia Pastorelli  1
Affiliations
Review

Dietary Polyphenol Supplementation in Food Producing Animals: Effects on the Quality of Derived Products

Valentina Serra et al. Animals (Basel). .

Abstract

The growing interest in producing healthier animal products with a higher ratio of polyunsaturated to saturated fatty acids, is associated with an increase in lipoperoxidation. For this reason, it is essential to attenuate oxidative deterioration in the derived products. Natural antioxidants such as polyphenols represent a good candidate in this respect. The first part of the review highlights the occurrence, bioavailability, and the role of polyphenols in food-producing animals that, especially in intensive systems, are exposed to stressful situations in which oxidation plays a crucial role. The second part offers an overview of the effects of polyphenols either supplemented to the diet of monogastric and ruminants or added directly to meat and dairy products on the physicochemical and sensorial properties of the product. From this review emerges that polyphenols play an important, though not always clear, role in the quality of meat and meat products, milk and dairy products. It cannot be ruled out that different compounds or amounts of polyphenols may lead to different results. However, the inclusion of agro-industrial by-products rich in polyphenols, in animal feed, represents an innovative and alternative source of antioxidants as well as being useful in reducing environmental and economic impact.

Keywords: animal product quality; antioxidants; feed additives; food-producing animals; pig; polyphenols; poultry; ruminants.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Main classes of polyphenols: flavonoids, non-flavonoids (phenolic acids, lignans, stilbenes) and tannins.
Figure 2
Figure 2
Biological properties of polyphenols exerted in human, animal models and farm animals.
Figure 3
Figure 3
Adsorption and metabolism of plant polyphenols in monogastric farm animals (Adapted from Marín et al., 2014 [41]).
Figure 4
Figure 4
Increasing publications on polyphenols and their use as feed additives since 2000 (Indexed by Web of Science).
See this image and copyright information in PMC

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