The Physical Properties of Banana Stem and Leaf Papers Laminated with Banana Film

Natcharee Jirukkakul

Abstract


Bananas (Musa ABB group) are grown in humid tropical areas including Thailand. They can be consumed fresh and can be processed into food products. As a result, there are increasing amounts of by-products that result from their consumption and processing. Because of their fiber found in the banana stems and leaves, it is possible to use these raw materials in pulp processing. Moreover, banana flour can be produced into an edible film. The aim of the study was to discover a suitable method (wet lamination or dry lamination) for producing paper lamination with banana film (stems, leaves, or a 1:1 ratio of mixed stems & leaves) and to study their physical properties. The results showed the efficiency of banana stems for paper production. However, there was an improvement in results when a 1:1 ratio of mixed stems & leaves was used due to an increase in tensile strength, elongation, and the L value.  Yet there was no significance in the water vapor permeability. The paper lamination had 6-13% moisture content, and in the dry lamination, film and paper separation was noted. The wet lamination of the leaf paper and mixed paper caused high tensile strength and elongation. Therefore, it could be used as an alternative and environmentally friendly method in the application of packaging materials which could utilize the increasing volume of by-products.

Keywords


Banana leaf, banana stem, paper, banana film, physical properties

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