Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison.
Fish processing generates plenty of waste that is directly discarded in open-air dumps and water sources, or treated in the same way as urban solid waste, causing serious pollution problems. The waste represents a significant source of high-value bioproducts with potential applications in differe...
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| Formato: | Documento de conferencia updatedVersion |
| Lenguaje: | Inglés |
| Publicado: |
2022
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| Acceso en línea: | https://onlinelibrary.wiley.com/doi/abs/10.1111/jfb.14929 http://hdl.handle.net/20.500.12272/6405 |
| Aporte de: |
| id |
I68-R174-20.500.12272-6405 |
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dspace |
| institution |
Universidad Tecnológica Nacional |
| institution_str |
I-68 |
| repository_str |
R-174 |
| collection |
RIA - Repositorio Institucional Abierto (UTN) |
| language |
Inglés |
| topic |
VISCERA SOUTH-WEST ATLANTIC OCEAN PARTIAL CHARACTERIZATION FISH WASTES DIGESTIVE PROTEINASES ACUICULTURA |
| spellingShingle |
VISCERA SOUTH-WEST ATLANTIC OCEAN PARTIAL CHARACTERIZATION FISH WASTES DIGESTIVE PROTEINASES ACUICULTURA Friedman, Ivana S. Behrens, Leonel A. Pereira, Nair de los Angeles Contreras, Edgardo M. Fernández-Gimenez, Analia V. Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison. |
| topic_facet |
VISCERA SOUTH-WEST ATLANTIC OCEAN PARTIAL CHARACTERIZATION FISH WASTES DIGESTIVE PROTEINASES ACUICULTURA |
| description |
Fish processing generates plenty of waste that is directly discarded in open-air dumps
and water sources, or treated in the same way as urban solid waste, causing serious
pollution problems. The waste represents a significant source of high-value
bioproducts with potential applications in different industrial processes such as the
production of feed, fertilizers, biodiesel and biogas, detergent additives and cosmetics.
The objective of this study was to characterize and compare specific activities
under different pH values and temperature conditions of acid and alkaline proteinases
and viscera yield from the following fish species: Argentine hake Merluccius
hubbsi, Brazilian flathead Percophis brasiliensis, Brazilian codling Urophycis brasiliensis
and Stripped weakfish Cynoscion guatucupa. Individuals were fished off the coast of
Mar del Plata (Argentina) by a commercial fleet and the viscera were immediately
extracted and kept on ice until use. Stomach proteinases from four species had the
highest activity at pH 2, with stability in the range of pH 2–4. The optimum pH was
11.5 from intestinal enzymes of C. guatucupa, M. hubbsi and P. brasiliensis and 9.5
from intestinal enzymes of U. brasiliensis. Alkaline proteinases from all species were
highly stable in the range of 7–11.5. The optimum temperature of stomach proteinases
from the four species studied were 30 and 50_C, with stability at 10 and 30_C
during 150 min. The optimum temperature of intestinal enzymes from the tested
species were 50_C with high stability at 10 and 30_C during 150 min. Alkaline proteinase
from all species and acid proteinases from C. guatucupa were inactive at 70_C
after 150 min, while there was a residual activity lower than 5% at 80_C on preincubated
stomach enzymes of M.hubbsi, P. brasiliensis and U. brasiliensis after
5, 10 and 20 min, respectively. Digestive proteinases recovered in this study could
be appropriate for technological usage, reducing manufacturing costs, obtaining revenue
from fishery wastes, and contributing to the reduction of environmental
pollution. |
| format |
Documento de conferencia updatedVersion |
| author |
Friedman, Ivana S. Behrens, Leonel A. Pereira, Nair de los Angeles Contreras, Edgardo M. Fernández-Gimenez, Analia V. |
| author_facet |
Friedman, Ivana S. Behrens, Leonel A. Pereira, Nair de los Angeles Contreras, Edgardo M. Fernández-Gimenez, Analia V. |
| author_sort |
Friedman, Ivana S. |
| title |
Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison. |
| title_short |
Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison. |
| title_full |
Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison. |
| title_fullStr |
Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison. |
| title_full_unstemmed |
Digestive proteinases from the marine fish processing wastes of the South‐West Atlantic Ocean: Their partial characterization and comparison. |
| title_sort |
digestive proteinases from the marine fish processing wastes of the south‐west atlantic ocean: their partial characterization and comparison. |
| publishDate |
2022 |
| url |
https://onlinelibrary.wiley.com/doi/abs/10.1111/jfb.14929 http://hdl.handle.net/20.500.12272/6405 |
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