Abstract

The use of plastic films has seen tremendous growth during the past decades. The US Flexible Packaging Association 1994 Annual Report revealed that flexible packaging sales are predicted at US $13.2 billion and 50% of the flexible packaging is produced for food items. It is also realized that polymeric films interact with their environments differently than do glass or metal containers. Volatile flavor compounds from food items can dissolve and diffuse in the polymeric membrane. These movement is especially important when the loss of these flavors results in the lowering of the product quality and acceptance. The permeation characteristics of black tea flavors and linalool were evaluated in four different plastic films (QHE, MET-HB, AOH and Barex), using an isostatic test procedure. Presently there is no data available for black tea flavors and only very little data for linalool, on the transport of such organic penetrants through plastic membranes. The permeation results collected from the MAS 2000, Organic Flavor Detector, suggested that each film has a different barrier property to linalool and the black tea flavors. The relationship between the permeation characteristics of linalool and the black tea flavors could not be established at this present time, as more data are needed to verify the permeation profile in each film, especially for the black tea flavors. Recommendations for further improvement and research were suggested to determine which of the four films would offer the best flavor barrier to linalool and black tea at room temperature.

Library of Congress Subject Headings

Plastic films--Permeability--Research; Plastics in packaging--Research; Tea--Packaging--Research

Publication Date

1995

Document Type

Thesis

Department, Program, or Center

School of Food, Hotel and Tourism Management (CAST)

Advisor

Yambach, Fritz

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TP1183.F5A98 1995

Campus

RIT – Main Campus

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