Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets
Red <i>Tilapia</i> is one of the most consumed but perishable fish in the world. As a result, it requires preservation methods for safe consumption without affecting its organoleptic characteristics. Chitosan encapsulating essential oils have shown to be an excellent food conservation me...
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doaj-61a3536d2df74c61a216577b28af249c2020-11-25T02:45:40ZengMDPI AGBiomolecules2218-273X2019-09-019945810.3390/biom9090458biom9090458Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> FilletsMayra Alejandra Valencia Junca0Cesar Valencia1Edwin Flórez López2Johannes Delgado-Ospina3Paula A. Zapata4Moisés Solano5Carlos David Grande Tovar6Grupo de Investigación en Química y Biotecnología QUIBIO, Universidad Santiago de Cali, Calle 5 No 62-00, Cali 760035, ColombiaSIMERQO Laboratorio de Polímeros, Departamento de Química, Universidad del Valle, Calle 13 No 100-00, Cali 760031, ColombiaGrupo de Investigación en Química y Biotecnología QUIBIO, Universidad Santiago de Cali, Calle 5 No 62-00, Cali 760035, ColombiaGrupo de Investigación Biotecnología, Facultad de Ingeniería, Universidad de San Buenaventura Cali, Carrera 122 # 6-65, Cali 76001, ColombiaGrupo de Polímeros, Facultad de Química y Biología, Universidad de Santiago de Chile, USACH, Casilla 40, Correo 33, Santiago 9170020, ChileGrupo de Investigación de Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 No 8-49, Puerto Colombia 081008, ColombiaGrupo de Investigación de Fotoquímica y Fotobiología, Universidad del Atlántico, Carrera 30 No 8-49, Puerto Colombia 081008, ColombiaRed <i>Tilapia</i> is one of the most consumed but perishable fish in the world. As a result, it requires preservation methods for safe consumption without affecting its organoleptic characteristics. Chitosan encapsulating essential oils have shown to be an excellent food conservation method. For that reason, we carried out the study of the protective effect on <i>red Tilapia</i> fillets with chitosan beads (CB) incorporated with <i>Thymus capitatus</i> (TCEO) essential oil at 500, 1000, and 2000 mg/L to assess the conservation of the fillets. The TCEO composition was characterized by gas chromatography-mass spectrometry (CG-MS). For the other side, CB was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), thermogravimetric analysis (TGA), and Scanning electron microscopy (SEM). The protective effect of the beads was tested against the <i>Gram-positive</i> and <i>Gram-negative</i> bacteria growth for four weeks. The results showed an inhibition effect in <i>Gram-positive</i> bacteria at higher TCEO concentration (1000 and 2000 mg/L). Besides that, the pH, total volatile basic nitrogen (T-BNV-N), color, and fillet texture were evaluated as quality attributes. The results suggested that the incorporation of the CB-TCEO allowed a higher contact of the active compounds with the food surface, which reflected more excellent stability. The quality attributes of the fillets were preserved for 26 days, suggesting its uses for the treatment for perishable food.https://www.mdpi.com/2218-273X/9/9/458chitosan beadsred <i>Tilapia</i> fillets<i>Thymus capitatus</i> |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mayra Alejandra Valencia Junca Cesar Valencia Edwin Flórez López Johannes Delgado-Ospina Paula A. Zapata Moisés Solano Carlos David Grande Tovar |
spellingShingle |
Mayra Alejandra Valencia Junca Cesar Valencia Edwin Flórez López Johannes Delgado-Ospina Paula A. Zapata Moisés Solano Carlos David Grande Tovar Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets Biomolecules chitosan beads red <i>Tilapia</i> fillets <i>Thymus capitatus</i> |
author_facet |
Mayra Alejandra Valencia Junca Cesar Valencia Edwin Flórez López Johannes Delgado-Ospina Paula A. Zapata Moisés Solano Carlos David Grande Tovar |
author_sort |
Mayra Alejandra Valencia Junca |
title |
Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets |
title_short |
Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets |
title_full |
Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets |
title_fullStr |
Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets |
title_full_unstemmed |
Chitosan Beads Incorporated with Essential Oil of <i>Thymus capitatus</i>: Stability Studies on Red <i>Tilapia</i> Fillets |
title_sort |
chitosan beads incorporated with essential oil of <i>thymus capitatus</i>: stability studies on red <i>tilapia</i> fillets |
publisher |
MDPI AG |
series |
Biomolecules |
issn |
2218-273X |
publishDate |
2019-09-01 |
description |
Red <i>Tilapia</i> is one of the most consumed but perishable fish in the world. As a result, it requires preservation methods for safe consumption without affecting its organoleptic characteristics. Chitosan encapsulating essential oils have shown to be an excellent food conservation method. For that reason, we carried out the study of the protective effect on <i>red Tilapia</i> fillets with chitosan beads (CB) incorporated with <i>Thymus capitatus</i> (TCEO) essential oil at 500, 1000, and 2000 mg/L to assess the conservation of the fillets. The TCEO composition was characterized by gas chromatography-mass spectrometry (CG-MS). For the other side, CB was characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction spectroscopy (XRD), thermogravimetric analysis (TGA), and Scanning electron microscopy (SEM). The protective effect of the beads was tested against the <i>Gram-positive</i> and <i>Gram-negative</i> bacteria growth for four weeks. The results showed an inhibition effect in <i>Gram-positive</i> bacteria at higher TCEO concentration (1000 and 2000 mg/L). Besides that, the pH, total volatile basic nitrogen (T-BNV-N), color, and fillet texture were evaluated as quality attributes. The results suggested that the incorporation of the CB-TCEO allowed a higher contact of the active compounds with the food surface, which reflected more excellent stability. The quality attributes of the fillets were preserved for 26 days, suggesting its uses for the treatment for perishable food. |
topic |
chitosan beads red <i>Tilapia</i> fillets <i>Thymus capitatus</i> |
url |
https://www.mdpi.com/2218-273X/9/9/458 |
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