3. Results and Discussion
3.1. Effect of Chitosan Coating on Weight Loss
The changes in weight loss of chitosan coated bananas during one week storage were depicted in Fig. 1 and Fig.
2. As the banana fruits were easily perishable, the uncoated banana showed to be overripe at day four, thus in this
experiment, the storage time was limited to seven days. For the entire duration of the storage the percentage of
weight loss in the control sample (uncoated) was higher than in coated samples (p<0.05). The weight loss of control
sample was about 22%, whereas the coated banana showed a reduction of weight loss of about 30% during the same
period of storage. This confirmed the previous work demonstrating weight loss suppression to about 30% during the
same period of storage of chitosan coated banana
12
. The primary mechanism of weight loss from fresh fruits and
vegetables is by vapour-phase diffusion driven by a gradient of water vapour pressure between inside and outside
the fruit leading to an enhanced transpiration process.
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