摘要：There is a general trend towards a continuous increase in fresh market sales of
mushrooms and many methods have been researched to improve quality and shelf
life during storage and marketing. As it is known, mushrooms are a very
perishable commodity, with very high respiration rate and rapid quality
deterioration, when kept at ambient temperature. In order to study the effect of
modified atmosphere packaging (MAP) on the quality of three species of oyster
mushrooms, P. ostreatus, P. sajor-caju and P. eryngii, whole mushrooms were
packaged with two polymeric low density polyethylene films – Vileda Freshmate
(A) and PE 52 LV Amcor (B), with passive modified atmosphere and stored at 4ºC.
The quality and stability of MA packaged mushrooms were assessed, during
storage, by package atmosphere composition (O2, CO2), soluble solid contents,
weight loss, texture, surface colour and exudates measurements. It was verified
that on the seventh day the P. ostreatus and P. sajor-caju carpophores presented
identical quality, when packaged with the two films types, thereafter some decay
was observed. Carpophores of P. eryngii had the same quality in the two film
types at the end of the established storage.
关键词：mushrooms, packaging conditions, polymeric films, storage, shelf life
