Shrimp wastewater as a source of astaxanthin and bioactive peptides
| Autor: | M.P. González, Isabel R. Amado, Miguel Anxo Murado, José Antonio Vázquez |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
0106 biological sciences
0301 basic medicine 030109 nutrition & dietetics Renewable Energy Sustainability and the Environment Chemistry General Chemical Engineering Seafood processing Organic Chemistry Ultrafiltration 01 natural sciences Pollution Hydrolysate Shrimp Inorganic Chemistry 03 medical and health sciences chemistry.chemical_compound Fuel Technology Wastewater Astaxanthin 010608 biotechnology Ic50 values Food science Waste Management and Disposal Protein concentration Biotechnology |
| Zdroj: | Journal of Chemical Technology & Biotechnology. 91:793-805 |
| ISSN: | 0268-2575 |
| Popis: | BACKGROUND Ultrafiltration (UF) has led to the recovery of valuable products from seafood processing wastes. However, the use of crustacean process wastewaters as a source of bioactive compounds with application in the chemical, pharmaceutical and food industries has been scarcely studied to date. RESULTS This study reports the recovery of high concentrations of astaxanthin (10–13 µg mL−1) by 300 kDa ultrafiltration of shrimp cooking wastewater, indicating that astaxanthin is associated with high MW retained proteins. Individual UF with 300, 100 and 30 kDa MWCO membranes and the sequential UF 100 30 kDa were the most effective configurations for protein concentration. Hydrolysates from these three protein-concentrated fractions showed very potent ACE-inhibitory (1.98, 9.87 and 23.10 µg mL−1 IC50 values) and s-carotene bleaching activities compared with hydrolysates from other fish and seafood species. CONCLUSIONS According to these results, shrimp cooking wastewater is a good source of astaxanthin and bioactive peptides. This approach based on the ultrafiltration of shrimp cooking wastewaters contributes towards the depuration of this by-product, while enabling the recovery and production of high value-added products. © 2015 Society of Chemical Industry |
| Databáze: | OpenAIRE |
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