Morphology, centesimal composition and changes during tanning process of the Nile tilapia skin
DOI:
https://doi.org/10.33448/rsd-v10i8.17240Keywords:
Epidermis; Dermis; Collagen Fibres; Oreochromis niloticus.Abstract
The aim of the study was to describe the morphology and centesimal composition of the Nile tilapia skin and the changes that occur throughout the tanning process. Samples (middle dorsal region) were taken at the end of each stage of the tanning process, for analysis of light microscopy and scanning electron microscopy. Analyzes of the proximate composition of skins related to fish of three weight classes (500 to 600g; 601 to 700 g and 701 to 800 g) were also carried out. It was observed that the skin of the Nile tilapia has a structural pattern common to teleost fish. Through histochemical techniques, the presence of neutral carbohydrates in the mucous cells found in the superficial layer of the epidermis has been proven. The arrangement and orientation of the collagen fibers of the superficial dermis was observed, as well as of the compact dermis and the organization of the collagen fibers and of the protective insoles in the insertion of the scales. It is possible to observe the insertion of the scale in the dermal tissue, as well as its morphology. It was observed the swelling and opening of the fibrous structure at the beginning of the process, and mainly, the separation of the layers of collagen fibers throughout the process and the action of the oils of the greasing at the end of the tanning. There was a difference in the proximate composition of the skins, only in terms of lipid content. By analyzing the morphology of the skin, in relation to the organization and disposition of collagen fibers and the dermal structure during tanning, it can be inferred that the study of the histological structure of the material is fundamental for analyzing the strength of the leather.
References
Almeida, R. R. (1998). A pele de peixe tem resistência e flexibilidade? Revista do Couro, 127, 49-53.
AOAC. (2005). Official Methods Of analysis. (18a ed.), Association of official analytical chemistry.
Bickley, J. C. (1993). Taninos vegetais e curtimento. Revista do Couro, 94, 61-65.
Dourado, D. M., Santos, H. L., Souza, M L R, Souza, H. A. & Lucena, V. M. (1998). Estudo comparativo da epiderme de dois peixes couro pintado (Pseudoplatystoma corruscans) e o cachara (Pseudoplatystoma fasciatus) capturados no Rio Miranda. Ensaios e Ciência (Campo Grande), 2, 129-239.
Dourado, D. M., Souza, M. L. R., Leme Dos Santos, H. S., Matos, V. L., Coleta, V. C., Correa, F. F. & Stefanello, A. C. (1996). Estrutura da pele do peixe piraputanga (Brycon sp), capturado no Rio Miranda (MS). In: Congresso Panamericano De Ciências Veterinárias, 15., Campo Grande. Resumos... Campo Grande: Somvet.
Dourado, D. M., Souza, M. L. R., Leme Dos Santos, H. S., Matos, V. L., Stefanello, A. C. & Matos, V. L. (1996). Estudo comparativo da estrutura morfológica em três regiões da pele do dourado (Salminus maxillosus). In: Congresso Panamericano De Ciências Veterinárias, 15., Campo Grande. Resumos... Campo Grande: Somvet.
Farias, E. C. (1991). O tegumento e o colorido dos peixes. In: Semana Sobre Histologia De Peixes, 1., Jaboticabal. Palestras...: FUNEP.
Farias, E. C. & Bezerra De Sá, F. (1995). A pele e o colorido dos peixes significados comportamentais dos padrões cromáticos. In: Semana Sobre Histologia De Peixes, 2, Jaboticabal. Resumos e Palestras... FUNEP.
Fishelson, L. (1996). Skin morphology and cytology in marine eels adapted to different lifestyles. Anatomical Record, 246, 15-29.
Frankel. A. M. (1991). Tecnologia del cuero. Albatros Saci.
Grizzle, J. M. & Rogers, W. A. (1976). Anatomy and histology of the channel catfish. Auburm.
Gutterres, M. (2001). Distribuição, deposição e interação química de substâncias de engraxe no couro. In: Congresso Da Federação Latino-Americana Das Associações Dos Químicos E Técnicos Da Indústria Do Couro, 15., Salvador. Anais.
Gutterres, M. & Oetel, H. (1998). Determinação de porosidade de materiais de colagênio por adsorção física de gases. Revista do Couro, 122, 56-59.
Harris, J. E. & Hunt, S. (1975). The fine structure of the epidermis of two species of Salmonid fis, the Atlantic Salmon (Salmo salar L.) and the Brown trout (Salmo trutta L.). Cell and Tissue Research., 163, 535-543.
Hibiya, T. (1982). An atlas of fish histology: normal and pathological features. Kodansha Ltd.
Hinton, D. E. & Laurén, D. J. (1990). Integrative histopathological approaches to detecting effects of environmental stressors on fishes. American Fisheries Society Symposium, 8, 51-66.
Hoinacki, E. (1989). Peles e couros: origens, defeitos, e industrialização. (2a ed.), Henrique d`Ávila Bertaso.
Hoinacki, E, Moreira, M. V. & Kiefer, C. G. (1994). Manual básico de processamento do couro.: SENAI/RS, Estância Velha, Centro Tecnológico do Couro.
Iger, Y. & Abraham, M. (1990). The process of skin healing in experimentally wounded carp. Journal of Fish Biology, 36, 421-437.
Junqueira, L. C. U, Joazeiro, P. P, Montes, G. S., Menezes, N. & Pereira Filho, M. (1983a). The collagen fiber architecture of brasilian naked skin. Brazilian Journal Medicinal Biological Research, 16, 313-316.
Junqueira, L. C. U., Joazeiro, P. P., Montes, G. S., Menezes, N. & Pereira Filho, M. (1983b). É possível o aproveitamento industrial da pele dos peixes de couro? Tecnicouro, 5, 4-6.
Lagler, K. F., Bardach, J. E., Miller, R. R. & Passino, D. R. M. (1977). Icthyology. John Wiley & Sons.
Mittal, A. K. (1997). Fish skin glands and their secretions. In: International Symposium – Biology Of Tropical Fishes, Manaus. Anais.
Mittal, A. K., Agarwal, S. K. & Banerjee, T. K. (1976). Protein and carbohydrate histochemistry in relation to the keratinization of the epidermis of Barbus sophor (Cyprinidae, Pisces), Journal of Zoology, 179, 1-7.
Moreira, M. V. (1994). Depilação-caleiro. In: Hoinacki, E., Moreira, M. V. & Kiefer, C. G. (Ed.). Manual básico de processamento do couro. Porto Alegre: SENAI.
Pasos, L. A. P. Piel de pescado. Disponível em: http://www.cueronet.com/exoticas/pescado.htm.
Peixe BR (2021). Associação Brasileira da Piscicultura. Anuário 2021- Peixe BR da Piscicultura.
Ralphs, J. R. & Benjamin, M. (1992). Chondroitin and keratan sulphate in the epidermal club cells of teleosts. Journal of Fish Biology, 40, 473-475.
Rhein, L. A. (1956). Manual da Basf: para a indústria de curtumes. São Paulo: Companhia de Produtos Chimicos Indústriais.
Sanchez, J. E. & Araya, L. A. R. (1990). Estudo histologico del tegumento de las especies congrio, mero y anguila y sus procesos de ribeira. In: Congresso Latinoamericano de Quimicos y Tecnicos del Cuero, 11., Santiago de Chile, Anais.
Souza, M. L. R. & Leme Dos Santos, H. S. (1995). Análise microscópica comparada da pele da tilápia (Oreochromis niloticus), da carpa espelho (Cyprinus carpio specularis) e carpa comum (Cyprinus carpio). In: Semana sobre histologia de peixes, FCAVJ-UNESP, 2., 1995, Jaboticabal. Resumos e Palestras... Jaboticabal: FUNEP.
Souza, M. L. R. (2003). Análise da pele de três espécies de peixes: histologia, morfometria e testes de resistência. Revista Brasileira de Zootecnia, 32, 1551-1559.
Souza, M. L. R. (2004). O que fazer com as peles de peixes? Panorama da Aqüicultura, 14, 43 – 47.
Storer, T. I. & Usinger, R. L. (1978). Zoologia geral. (4a ed.), Companhia Editora Nacional.
Whitear, M. & Zaccone, G. (1984). Fine structure and histochemistry of club cells in the skin of three species of eel. Jahrbuch für Morphologie und mikroskopische Anatomie. 2. Abteilung, Zeitschrift für mikroskopisch-anatomische Forschung, 98, 481-501.
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Copyright (c) 2021 Maria Luiza Rodrigues de Souza; Elisabete Maria Macedo Viegas; Laura Satiko Okada Nakaghi; Doroty Mesquita Dourado; Sérgio do Nascimento Kronka; Elenice Souza dos Reis Goes
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