Packaging Material for High Pressure Treatment
(0) Consumer preferences towards high quality and more fresh-like food products are leading to thesubstitution of the traditional thermal treatments by other emerging preservation technologies, e.g. high pressureprocessing (HPP), among others 1. The application of high pressure to a food product during a short periodof time results in enzyme deactivation and reduction of microorganisms, effects which are intensifiedwhen the process is combined with temperature (40-75 ?C) 2.Once packaged, food products are pressurized at 300-800 MPa for several minutes. Selecting the correctpackaging material is crucial, since the packaging material needs to be flexible enough to withstand the compressionforces, while maintaining physical integrity 3.Ideally, HPP should not affect neither the integrity of the package nor the food quality/safety to any degree,including barrier and mechanical properties, flavour scalping or migration phenomenon. However, recent researchhas demonstrated that this may not be the case for at least some composite flexible structures 4, whilefor other structures there are very few studies.HPP is technically mature, but still it has to be demonstrated that the process is robust and scalable to allow asufficient adaptation to the various manufacturing conditions in the food industry. The combination of activepackaging materials with new processing technologies (HPP) could cover different demands in packaging industry.Increase in distribution distances, longer storage times, different food storage requirements or consumerdemands for less processed foods with improved shelf life are some of the driving changes in retail anddistribution practices that are boosting this research.In the present study, a coextruded film LDPE-EVOH-LDPE commonly used for food applications has beenmanufactured containing 3% tocopherol as active substance on both LDPE layers. The effect of HPP treatmenton the release of tocopherol from the film to olive oil has been evaluated.
P.Albert J.M.Alonso L.Valle S.Aucejo
Materials and Packaging Technologies Packaging, Transport & Logistics Research Center-ITENE Parque Tecnológico, Albert Einstein 1, 46980 Paterna, Valencia (Spain)
国际会议
The 17th IAPRI World Conference on Packaging(第17届世界包装大会)
天津
英文
836-840
2010-10-12（万方平台首次上网日期，不代表论文的发表时间）