The extension of the shelf-life of 'pesto' sauce by a combination of modified atmosphere packaging and refrigeration

被引:31
|
作者
Fabiano, B [1 ]
Perego, P [1 ]
Pastorino, R [1 ]
Del Borghi, M [1 ]
机构
[1] Univ Genoa, Chem & Proc Engn Dept GB Bonino, DiCheP, I-16145 Genoa, Italy
关键词
CO2; storage; mild technologies; predictive modelling; sensory evaluation;
D O I
10.1046/j.1365-2621.2000.00336.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
This study was intended to extend, by optimizing modified atmosphere packaging (MAP), the shelf-life of the Italian vegetable sauce used for spaghetti and known as 'pesto'. A mathematical model was developed in order to predict gas composition inside the polymeric package (CO2 concentration). Predictions of equilibration time and equilibrium gas composition showed moderately good agreement with experimental data. A useful extension of pesto shelf-life, up to 120 days, was achieved by adopting a target atmosphere containing, at steady-state, 10% CO2 and 90% N-2 at 5 degrees C. Microbial growth was inhibited by the CO2 levels, but was not accompanied by significant changes in odour and colour.
引用
收藏
页码:293 / 303
页数:11
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