Control de calidad de filetes de dorado (coryphaena hippurus) envasado bajo condiciones de atmósfera modificada

Abstract:

The one packed in modified atmosphere (MAP) it is an important technique to extend the useful life of the fresh fish in refrigeration. The objective of this doctoral thesis was to evaluate the use of modified atmosphere (MAP) in the one packed of fresh fillets of the Golden fish (Coryphaena hippurus). 2 mixtures of gases were evaluated in the one packed of fresh fillets of the Golden fish (Coryphaena hippurus).  10% CO2, 89.5% N2 and 0.5 O2  6% CO2, 93.5% N2 and 0.5 O2 3 classes of cases alltopolímeros were used (high barrier) given by the company Pefrexport (Alitecno - USA); Indura (Chile) and Ultrapack (Colombia) being stored during eight days to a temperature of refrigeration of 0o C. and 2º C. with 20, 15 and 10 pounds of pressure ( psi ) The parameters evaluated organolépticos were color, scent, texture, flavor and general aspect, chemical physique corresponding to the percentages of humidity, proteins, fatty and pH and the microbiológicos that are: Recounts of Total Aerobes, Total Coliformes, Fecal Coliformes, Salmonella and Total Anaerobios. According to the obtained results the use of modified atmosphere (MAP) in the one packed of fresh fillets of the Golden fish (Coryphaena hippurus) it presents advantages in front of the conditions of normal atmosphere, because it is able to increase the period of storage. Considering their degree of acceptability organolépticamente, chemical physique and microbiológica like decisive factors of the quality in the fresh fish, it was determined that the mixture 1 (10% C02, 89.5% N2 and 0.5% O2) it was the most appropriate with the packing of Alitecno and with 20 pounds of pressure ( psi ) To be successful in the one packed with modified atmosphere (MAP) it is important to consider all the stages, from the fishing, gathering, selection of the matter prevails, temperature of the place of the work and of the storage, mixture of gases, machine envasadora, sealed of the packing, permeability of the material used for the packing as well as its mechanical resistance. In summary the selection of a good modified atmosphere and the best container material is vital to maximize the storage life with the highest quality.  

Año de publicación:

2013

Keywords:

• CONTROL DE CALIDAD DE ALIMENTOS
• CONTROL DEL PESCADO
• INDUSTRIA PESQUERA

Fuente:

rraae