Perforation-mediated modified atmosphere packaging: influence of package geometry and perforation location on oxygen and carbon dioxide transfer

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2003

Autores

Fonseca, SC (Autor) Outra; Oliveira, FAR (Autor) Outra; Brecht, JK (Autor) Outra; Chau, KV (Autor) Outra

Ata de Conferência Internacional

Título: PROCEEDINGS OF THE 8TH INTERNATIONAL CONTROLLED ATMOSPHERE RESEARCH CONFERENCE, VOLS I AND II

Páginas: 333-336

8th International Controlled Atmosphere Research Conference (CA2001)

ROTTERDAM, NETHERLANDS, JUL 08-13, 2001

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 2 Citações

Outras Informações

ID Authenticus: P-000-KEZ

DOI: 10.17660/actahortic.2003.600.47

Abstract (EN): The importance of maintaining high quality of intact and fresh-cut fruits and vegetables during the distribution chain has led to the use of modified atmosphere packages (MAP), and alternative materials and packaging systems are being investigated for this purpose. Perforation-mediated MAP relies on the use of perforations (tubes) of different dimensions to control package O-2 and CO2 exchange in order to create the desired atmosphere for preservation of intact and fresh-cut fruits and vegetables. This is a promising technique for bulk packages that require rigid containers. The design of a perforation-mediated MAP for preservation of fresh fruits and vegetables requires knowledge of the O-2 and CO2 exchange rates through perforations. The air circulation surrounding the package and the draft induced by multiple perforations are important factors that should be studied. In this work, a set of experiments was performed to analyze the influence of tube location and number, as well as package geometry, on the O-2 and CO2 mass transfer coefficients and the beta ratio. Top and side tube locations, different locations on the same side of the package, and different package geometries were found to influence the mass transfer coefficients. Two perforations tripled O-2 and CO2 exchange, showing the importance of draft effects, but the relative position of the tubes did not show a significant effect on the process. The beta ratio was not significantly different for all the conditions tested.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4