Publication
Bromelain-catalyzed hydrolysis of fish and poultry by-products: a sustainable approach to biopeptide production
| dc.contributor.author | Borges, Sandra | |
| dc.contributor.author | Ribas, Tânia C. F. | |
| dc.contributor.author | Castro, Maria Leonor | |
| dc.contributor.author | Campos, Débora | |
| dc.contributor.author | Mota, Maria João | |
| dc.contributor.author | Almeida, André | |
| dc.contributor.author | Pintado, Manuela | |
| dc.date.accessioned | 2025-07-22T10:53:47Z | |
| dc.date.available | 2025-07-22T10:53:47Z | |
| dc.date.issued | 2025-09 | |
| dc.description.abstract | This study aimed to develop bioactive protein hydrolysates from fish and poultry by-products using bromelain, an enzyme obtained from pineapple by-products, with potential applications in food and biotechnology. The global rise in protein-rich food consumption has led to increased generation of animal by-products from the meat and fish industries. These by-products are rich in protein, making them suitable for producing bioactive compounds. A multifactorial design was employed to optimize the hydrolysis process, evaluating key parameters such as enzyme-to-substrate (E/S) ratio and hydrolysis time. The optimal conditions were identified as 1.3 % (E/ S) for 240 min for fish by-products, and 2.0 % (E/S) for 180 min for poultry by-products. These conditions were scaled up to produce fish (FH) and poultry (PH) hydrolysates. The hydrolysates showed high protein content (70.8 ± 0.1 % for FH and 56.3 ± 1.0 % for PH), potent antioxidant activity (ORAC: 249.02 ± 4.71 µmol eq. Trolox/g for FH and 144.41 ± 11.62 µmol eq. Trolox/g for PH), and notable ACE inhibitory effects (IC₅₀: 693 ± 12 µg protein/mL for FH and 1585 ± 6 µg protein/mL for PH). Furthermore, hydrolysates promoted probiotic strains’ growth, with 1 % (w/v) FH or PH showing comparable performance to conventional culture media in supporting Lactobacillus casei 01 (p > 0.05). These results highlight the potential of bromelain-derived hydrolysates as sustainable, cost-effective alternatives to traditional nitrogen sources in functional fermented food or microbiological culture media. This study contributes to value creation from agro-industrial by-products and aligns with global sustainability initiatives by promoting circular bioeconomy approaches. | eng |
| dc.identifier.doi | 10.1016/j.nexres.2025.100621 | |
| dc.identifier.issn | 3050-4759 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/53987 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Protein hydrolysates | |
| dc.subject | Sustainability | |
| dc.subject | Food industry by-products | |
| dc.subject | Bioactive properties | |
| dc.subject | Probiotics growth | |
| dc.title | Bromelain-catalyzed hydrolysis of fish and poultry by-products: a sustainable approach to biopeptide production | eng |
| dc.type | research article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 3 | |
| oaire.citation.title | Next Research | |
| oaire.citation.volume | 2 | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 |