| Title |
Exploitation of bones-rich poultry by-products to produce protein hydrolysates: optimization of hydrolysis parameters and chemical characterization |
| ID_Doc |
25650 |
| Authors |
Prandi, B; Samaei, S; Beninati, F; Nardi, A; Tedeschi, T; Sforza, S |
| Title |
Exploitation of bones-rich poultry by-products to produce protein hydrolysates: optimization of hydrolysis parameters and chemical characterization |
| Year |
2024 |
| Published |
Poultry Science, 103, 8 |
| DOI |
10.1016/j.psj.2024.103924 |
| Abstract |
A signi ficant quantity of bone-rich poultry by-products must be disposed of by poultry processors. These products still contain a signi ficant amount of nutritionally valuable animal proteins. In the present work, a hydrolysis protocol was optimized to recover the protein fraction of bone-rich poultry by-products while simultaneously minimizing the amount of water required for hydrolysis (thus reducing drying costs) and recycling the hydrolytic broth up to 3 times, to reduce the cost of the proteolytic enzyme. The final hydrolysis conditions involved the use of (protease from B. licheniformis , >= 2.4 U/g; 0.5 V/w of raw material) and a hydrolysis time of 2 h at 65 degrees C. The protein hydrolysate obtained has a high protein content (79 -86%), a good amino acid pro file (chemical amino acid score equal to 0.7 -0.8) and good gastric digestibility (about 30% of peptide bonds are already hydrolyzed before digestion). This supports its use as an ingredient in food, pet food or animal feed formulations. |
| Author Keywords |
poultry by-product; enzymatic hydrolysis; protein hydrolysate; circular economy; nutrient recovery |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001259635500001 |
| WoS Category |
Agriculture, Dairy & Animal Science |
| Research Area |
Agriculture |
| PDF |
https://doi.org/10.1016/j.psj.2024.103924
|