Plant-based polymer as a thermoresistant carrier of phytase in Nile tilapia (Oreochromis niloticus) diets

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dc.contributor.authorRodrigues, Edgar Junio Damasceno [UNESP]
dc.contributor.authorCarvalho, Pedro Luiz Pucci Figueiredo de [UNESP]
dc.contributor.authorXavier, William dos Santos [UNESP]
dc.contributor.authorGuimarães, Matheus Gardim [UNESP]
dc.contributor.authorVicente, Igor Simões Tiagua [UNESP]
dc.contributor.authorBarros, Margarida Maria [UNESP]
dc.contributor.authorSartori, Maria Márcia Pereira [UNESP]
dc.contributor.authorPadilha, Pedro de Magalhães [UNESP]
dc.contributor.authorAlarcon, Rafael Turra [UNESP]
dc.contributor.authorGaglieri, Caroline [UNESP]
dc.contributor.authorBannach, Gilbert [UNESP]
dc.contributor.authorPezzato, Luiz Edivaldo [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T13:35:18Z
dc.date.available2023-07-29T13:35:18Z
dc.date.issued2023-02-01
dc.description.abstractA biodegradable soybean oil-based polymer produced following the Green Chemistry principles, was assessed as a thermoresistant vehicle of phytase aiming to improve the enzyme stability during fish diet processing. Juvenile Nile tilapia (70 ± 4.3 g) were submitted to a digestibility assay designed in a factorial model (3 ×2) to assess the polymer efficiency. The treatments comprised the combination of three phytase inclusion methods with two feed processing methods. The inclusion methods of phytase were: CPP- coating post processing, in which the enzyme was spread on top of pellets after processing, PAE- polymer associated to enzyme, which was adsorbed by the polymer and included in the ingredients mash prior feed processing and NE- no enzyme inclusion, playing a control role as phytase was not included. The feed processing methods were extrusion (120 °C) or pelleting (40 °C), exposing the polymer to different temperatures. Phytase was supplemented at 1500 units kg−1 using the CPP or PAE methods. There was a significant interaction for the apparent digestibility coefficient (ADC) values of phosphorus (P), calcium (Ca) and Ash (P < 0.05). CPP resulted in higher ADC values for P and Ca, compared to PAE and NE in extruded diets (P < 0.05). The PAE method resulted in higher ADC values of P, Ca, and Ash than NE in extruded diets (P < 0.05). In pelleted diets, PAE resulted in higher ADC values for P and Ca, and a similar ADCAsh in comparison to CPP (P < 0.05). As verified in extruded diets data, the polymer partially protected phytase from heat denaturation, resulting in higher ADC values in comparison to NE (P < 0.05). The polymer improved phytase effects in pelleted diets probably by reducing degradation in fish stomach. These results suggest that the polymer may be a potential protective carrier of phytase and other thermolabile additives in extruded and pelleted diets.en
dc.description.affiliationUNESP - São Paulo State University School of Veterinary Medicine and Animal Science Department of Breeding and Animal Nutrition, SP
dc.description.affiliationUNESP - São Paulo State University School of Sciences Department of Chemistry, SP
dc.description.affiliationUNESP - São Paulo State University Institute of Bioscience Department of Chemistry and Biochemistry, SP
dc.description.affiliationUNESP São Paulo State University Department of Production and Plant Breeding, SP
dc.description.affiliationUnespUNESP - São Paulo State University School of Veterinary Medicine and Animal Science Department of Breeding and Animal Nutrition, SP
dc.description.affiliationUnespUNESP - São Paulo State University School of Sciences Department of Chemistry, SP
dc.description.affiliationUnespUNESP - São Paulo State University Institute of Bioscience Department of Chemistry and Biochemistry, SP
dc.description.affiliationUnespUNESP São Paulo State University Department of Production and Plant Breeding, SP
dc.identifierhttp://dx.doi.org/10.1016/j.anifeedsci.2022.115552
dc.identifier.citationAnimal Feed Science and Technology, v. 296.
dc.identifier.doi10.1016/j.anifeedsci.2022.115552
dc.identifier.issn0377-8401
dc.identifier.scopus2-s2.0-85145479344
dc.identifier.urihttp://hdl.handle.net/11449/248131
dc.language.isoeng
dc.relation.ispartofAnimal Feed Science and Technology
dc.sourceScopus
dc.subjectAquafeed processing
dc.subjectDigestibility
dc.subjectEnzyme carrier
dc.subjectOreochromis niloticus
dc.subjectPhytase
dc.subjectPlant-based polymer
dc.titlePlant-based polymer as a thermoresistant carrier of phytase in Nile tilapia (Oreochromis niloticus) dietsen
dc.typeArtigo

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