<b>Changes of color and water activity in dehydrated Agaricus blazei mushrooms, stored in different plastic packings</b> - DOI: 10.4025/actascitechnol.v27i1.1505

Authors

  • Gilberto Costa Braga UNIOESTE
  • João Domingos Biagi UNICAMP
  • Ariane Busch Salibe CEEP
  • Silvia Regina de Toledo Valentini ITAL
  • Eduardo Vicente ITAL

DOI:

https://doi.org/10.4025/actascitechnol.v27i1.1505

Keywords:

cogumelo-do-sol, escurecimento, armazenamento, vida-de-prateleira

Abstract

This study evaluated the effect of different plastic packings on dry A. blazei mushrooms, in terms of water activity, color and microbial growth during storage. Samples of 50 g dry mushrooms were wrapped in polypropylene (60 µm), low-density polyethylene (50 µm), double laminated biaxially oriented polypropylene (44 µm) and double laminated metallic biaxially oriented polypropylene (40 µm). Storage periods lasted 0, 45, 90, 135, 180, 225 and 270 days at 25°C and 80%RH. Microbiological analyses of mould and yeasts were carried out before and after storage period. The results showed that the polypropylene packing promoted the greatest increase of water activity and browning in the mushrooms, followed by the low-density polyethylene and the double biaxially oriented polypropylene packings. Storage in the double metallic biaxially oriented polypropylene packing retained the color. There was no increase, though, in the development of mould and yeasts in the mushrooms in any of the plastic packings studied

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Author Biography

Gilberto Costa Braga, UNIOESTE

Possui graduação em Agronomia pela Universidade Federal de Viçosa (1990) , mestrado em Engenharia Agrí­cola pela Universidade Federal de Viçosa (1994) , doutorado em Agronomia (Energia na Agricultura) pela Universidade Estadual Paulista Júlio de Mesquita Filho (1999) , Pós-Doutorado pela Universidade Estadual de Campinas (2002). Atualmente é Professor Adjunto da Universidade Estadual do Oeste do Paraná - UNIOESTE, ministrando aulas na graduação e na pós-graduação na área de Tecnologia de Alimentos e Pós-Colheita. Tem experiência na área de Ciência e Tecnologia de Alimentos com ênfase em Pós-Colheita, Tecnologia de Cogumelos Comestí­veis e Processamento de Alimentos Currí­culo Lattes

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Published

2008-03-27

How to Cite

Braga, G. C., Biagi, J. D., Salibe, A. B., Valentini, S. R. de T., & Vicente, E. (2008). <b>Changes of color and water activity in dehydrated Agaricus blazei mushrooms, stored in different plastic packings</b> - DOI: 10.4025/actascitechnol.v27i1.1505. Acta Scientiarum. Technology, 27(1), 83–87. https://doi.org/10.4025/actascitechnol.v27i1.1505

Issue

Vol. 27 No. 1 (2005)

Section

Food Technology

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