Active packaging material

Feigenbaum, A., Lebosse, R., and Ducruet, V. (1998). Polypropylene as active packaging material for aroma sorption from model organge juice. In Food Flavors Formation, Analysis and Packaging Influences" (E. T. Contis, C.-T. Flo, C. J. Mussinan, T. FF. Parliment, F. Shahidi, and A. M. Spanier, eds.), pp. 743-751. Elsevier Science BV, Amsterdam. 

In spite of all these precautions a number of foods remain perishable to deterioration by microbial growth or chemical reactions. The sensory appearance of the food may be improved by adding or removing food constituents from the packaged food. Active packaging materials are available for various applications that may solve some of the problems found in food production and distribution and they may extend the shelf life or improve the appearance of foodstuffs. 

Table 17.1 Overall migration from selected active packaging materials... 

Sago starch with ZnO-NR films exhibited excellent antimicrobial activity against 5. aureus, suggesting these nanocomposites have potential applications as active packaging materials in the pharmaceutical and food industries. Rahman et al. (2013) used concentration of ZnO-NR between zero and 10 wt% to incorporate into a thermoplastic sago starch matrix. Initially, the authors showed no filler particles agglomeration in all film samples indicating an uniform distribution of the nanorods into the starch film. Unusually, FTIR analysis revealed that there was no presence... 

Since full analyses are carried out, a lot of data are generated. Every parameter is reviewed for trends that signal product aging or outright decomposition of the active principle this can be as cosmetic in nature as discoloration or as potentially hazardous as buildup of toxic derivatives. If the drug substance is an ester, for example, hydrolysis, particularly if moisture penetrates the primary packaging material, will decompose the compound into its acid and alcohol components. From a pharmaceutical or medical viewpoint, even if there is no toxicity issue involved, this will result in a loss of bioavailability. Even this is to be avoided because subpotency introduces therapeutic uncertainty and can go as far as lethal undertreatment. 

Evaluated systems were modelled with the cradle to gate principle, thus the product system of particular foods was terminated at the point of entry into the school canteen. The following presentation of food and related activities, as well as waste management of the product and its packaging materials were not included in the LCA. One kg of the final food was selected as a functional unit. In the case the allocation was necessary, the weight-economic allocation was used. 

The enforcement in Denmark of EU Directives on food packaging materials is discussed. Enforcement activities considered include studies of total migration from food contact materials, migration from kitchen-and tableware made of melamine plastics and migration of di(2-ethylhexyl)adipate from plasticised PVC films. Activities which need to be undertaken to increase the effectiveness of enforcement activities in the field of migration are described, including development of selfinspection programmes in industry, European network of enforcement, more rapid analysis and provision of information to the consumer. 2 refs. 

Humectant properties of sucrose and other carbohydrates may be important for certain products, as water activity can be controlled by the level of humectants. Replacement of the carbohydrates by sweeteners may therefore influence the water activity of products and require other technologies, other packaging materials or additional steps to control microorganisms. 

The persistence of polymers in the environments is useful for long term durability of structures such as buildings, vehicles, docks, boats and navigation aids. Unfortunately, when the polymers are unintentional byproducts of recreational or commercial activities, collateral wildlife loss may result from entanglement in packaging materials, lost nets, lines and ropes. These wildlife losses due to litter have received significant public visibility. The critical degradation to address this... 

Recertihcation of an active and excepient manufacturer may be performed on request. Recertihcation can be requested by quality control and production. The certihcation is valid for a period determined by the QA manager. Certi-hcation of packaging materials is valid for 5 years. 

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