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dc.contributor.author
Cian, Raúl Esteban
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dc.contributor.author
Bacchetta, Carla
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dc.contributor.author
Cazenave, Jimena
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dc.contributor.author
Drago, Silvina Rosa
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dc.date.available
2019-09-29T16:36:51Z
dc.date.issued
2018-06
dc.identifier.citation
Cian, Raúl Esteban; Bacchetta, Carla; Cazenave, Jimena; Drago, Silvina Rosa; Extruded fish feed with high residual phytase activity and low mineral leaching increased P. mesopotamicus mineral retention; Elsevier Science; Animal Feed Science and Technology; 240; 6-2018; 78-87
dc.identifier.issn
0377-8401
dc.identifier.uri
http://hdl.handle.net/11336/84782
dc.description.abstract
This study attempts to provide valuable information about optimization of extrusion process in order to have a fish feed with maximum residual phytase activity, minimum mineral leaching and good mechanical characteristics. Also, the effects on mineral retention of extruded feed obtained in optimal condition, using a juvenile Piaractus mesopotamicus model was determined. In order to study the simultaneous effect of blend moisture (M) and extrusion temperature (T) on specific volume (SV), water resistance (WR), floatability (F), residual phytase activity (RPA), leached phosphorus (LP), calcium (LCa), zinc (LZn), and iron (LFe) a central composite design (32) was used. The levels of each variable were: T: 160–180–200 °C and M: 140–160–180 g/kg. A multiple response optimization of physicochemical properties of extruded feed (WR, F, RPA and mineral leaching) was performed using the Derringer's desirability function. The global desirability function value was 0.8990, and the obtained optimal conditions were 183.6 °C and 158 g/kg of moisture content. Phytase extruded feed (PEF) was obtained at such conditions and it had the following physical properties: WR: 81.8 ± 2.5%, F: 94.5 ± 0.72%, LP: 9.40 ± 0.61%, LCa: 2.20 ± 0.2%, LZn: 2.00 ± 0.15%, and LFe: 11.2 ± 2.8%. Fish consuming PEF with RPA of 3934.9 ± 47.7 UP/kg had higher iron, zinc, and phosphorus retention than those fed with control extruded feed (CEF) obtained under the same optimal conditions (p < 0.05). However, no significant difference in final body weight was detected between dietary treatments (p > 0.05) after 38 days of feeding trial at 25 °C. Extrusion process can be optimized to obtain fish feed based on vegetable meals with high residual phytase activity and low mineral leaching, increasing P. mesopotamicus mineral retention.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
EXTRUSION
dc.subject
FISH FEED
dc.subject
MINERAL LEACHING
dc.subject
PACU
dc.subject
RESIDUAL PHYTASE ACTIVITY
dc.subject.classification
Alimentos y Bebidas
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dc.subject.classification
Otras Ingenierías y Tecnologías
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Extruded fish feed with high residual phytase activity and low mineral leaching increased P. mesopotamicus mineral retention
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-09-27T14:57:52Z
dc.journal.volume
240
dc.journal.pagination
78-87
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Cian, Raúl Esteban. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina
dc.description.fil
Fil: Bacchetta, Carla. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
dc.description.fil
Fil: Cazenave, Jimena. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina
dc.description.fil
Fil: Drago, Silvina Rosa. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Instituto de Tecnología de los Alimentos; Argentina
dc.journal.title
Animal Feed Science and Technology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0377840117315353
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.anifeedsci.2018.03.016
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