| Title | Valorization of Olive Mill Byproducts: Recovery of Biophenol Compounds and Application in Animal Feed |
|---|---|
| ID_Doc | 20871 |
| Authors | Cifuni, GF; Claps, S; Morone, G; Sepe, L; Caparra, P; Benincasa, C; Pellegrino, M; Perri, E |
| Title | Valorization of Olive Mill Byproducts: Recovery of Biophenol Compounds and Application in Animal Feed |
| Year | 2023 |
| Published | Plants-Basel, 12, 17 |
| Abstract | This study aimed to recover the phenols from olive oil mill wastewater, a major pollutant of the oil industry, by using spray-drying technology to produce a new feed with a nutraceutical value for animal feed supplementation and to evaluate its effect on the productivity and nutritional quality of ewe milk. Forty-five Sarda ewes in late lactation (150 +/- 2 d) and with homogeneous live weight (52 +/- 1.5 kg) were randomly allotted into three groups and fed with three dietary treatments containing increasing levels of polyphenols: 0% (C), 0.1% (T0.1), and 0.2% (T0.2) of dry matter. No effect of the dietary treatments was found on the milk yield and composition. Interestingly, milk urea content (p < 0.0001) and somatic cell counts (p < 0.001) decreased as the level of polyphenols inclusion in the diet increased. The inclusion of phenols (0.2% of dry matter) in the diet of sheep was effective in increasing the vaccenic (C18:1 trans-11) and rumenic acid (C18: cis-9 trans-11) levels, which are beneficial for human health. Finally, the recovery of polyphenols via spray-drying technology and their incorporation into a new fortified feed can be a valid strategy for naturally improving the nutritional value of milk while valorizing an oil industry byproduct, reducing environmental impact, and promoting waste reuse that is in line with circular economy principles. |
| https://www.mdpi.com/2223-7747/12/17/3062/pdf?version=1693183746 |
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