Valorization of waste by-products of rose oil production as feedstuff phytonutrients.

OSF Preprints
S. G. DragoevSoleya Z. Dagnon


Abstract The aim of this study was to evaluate possibility for valorization of the dry pressed distilled rose petals (DDRP) as a feedstuff phytonutrients in animal husbandry. In connection with the chemical composition and radical scavenging activity of polyphenol complex in rose waste products were studied. The polyphenol composition in dry rose petals, DDRP and waste water after distillation was identified and quantified. The chromatographic analysis was conducted by HPLC-PDA and LC-MS. The experiments were conducted with bird, monogastric and ruminants representatives. A total of 40 one days old chicks from the hybrid combination Ross 308 were distributed into two groups each containing of 20 birds fed for 49 days. The control group C fed with basal diet vs. experimental group R fed with the same fodder plus 40 mg DDRP/kg/d. A total of 72 Danube White 155 days old fattening pigs (both sexes - 36 male and 36 female) of 72.500 ± 1.937 kg were distributed into three groups (one control C and two experimental R1 and R2 supplemented with 0.255 g DDRP/kg/d or 0.545 g DDRP/kg/d). Each one group (24 piglets) was fed for 45 days. A total of 30 numbers of 65 days old lambs from the Synthetic population of Bulgarian milk sheep breed la...Continue Reading