Feed supplemented with polyphenolic byproduct from olive mill wastewater processing improves the redox status in blood and tissues of piglets

Novel Feed Including Olive Oil Mill Wastewater Bioactive Compounds Enhanced the Redox Status of Lambs

“…The fact that polyphenols from OMW had no effect on the activity of catalase may be explained by their ability to enhance other antioxidant mechanisms, basically those associated with the GSH system. However, we and other researchers have reported that administration of polyphenolic extract from OMW increased catalase activity in erythrocytes and the rate of H 2 O 2 decomposition in several tissues in rats, mice and piglets (28,49,50). Thus, the effect of polyphenols from OMW on catalase may be animal-specific.…”

“…Similarly, another study of our research group, showed that the administration of feed supplemented with polyphenols from OMW to piglets and broilers increased the GSH level in erythrocytes and different tissues (10,28). Another study conducted on humans also showed that consumption of OMW extract increased plasma GSH (43).…”

“…The silage contained corn, OMW, water and lactic acid bacteria. Based on previous studies, the proportion of the ingredients was such that the silage contained 60% solids and 40% liquids (10,28). Standard commercial formulation (11CFT; Pioneer, Buxtehude, Germany) of lactic bacteria was used for the lactic fermentation of corn and the preparation of corn silage.…”

“…Like in plasma, these results are also in accordance with the corresponding increase in GSH level in these tissues. In previous studies, we have shown that feed supplemented with polyphenols derived from OMW reduced lipid peroxidation in blood and tissues of different farm animals, such as chickens and piglets (10,28). Major polyphenolics (e.g.…”

“…Studies in animals and humans have shown that polyphenol components of OMW exhibit important biological activities that can prevent oxidative stressassociated diseases (13,27). Recent studies of our research group showed broiler chickens and piglets given feed supplemented with OMW exhibited an increased antioxidant capacity in blood and tissues (10,28).…”